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import xen 32 bit paravirtual kernel from /n/sources/xen.

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This commit is contained in:
mischief 2014-06-24 18:02:25 -07:00
parent fa03455b50
commit 5ba95fdb07
85 changed files with 20627 additions and 0 deletions
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115
sys/src/9/xen/archxen.c Normal file
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#include "u.h"
#include "../port/lib.h"
#include "mem.h"
#include "dat.h"
#include "fns.h"
#include "io.h"
static int
identify(void)
{
m->havepge = 0;
return 0;
}
static void
intrinit(void)
{
ulong machs;
int i, ncpu;
char *cp;
char node[32];
char buf[32];
if((cp = getconf("*nomp")) != nil && strtol(cp, 0, 0) != 0)
return;
ncpu = MAX_VIRT_CPUS;
if (cp = getconf("*ncpu")) {
ncpu = strtol(cp, 0, 0);
if (ncpu < 1)
ncpu = 1;
}
machs = 1;
for (i = 1; i < ncpu; i++) {
sprint(node, "cpu/%d/availability", i);
if (xenstore_read(node, buf, sizeof buf) <= 0)
break;
print("%s: %s\n", node, buf);
if (strcmp(buf, "online") == 0) {
machs |= 1<<i;
conf.nmach++;
}
}
if (conf.nmach > 1) {
print("Sorry, SMP not supported yet: 1 of %lud CPUs startd\n", conf.nmach);
conf.nmach = 1;
}
}
static void
shutdown(void)
{
HYPERVISOR_shutdown(1);
}
int xenintrenable(Vctl *v);
int xenintrvecno(int irq);
int xenintrdisable(int irq);
void xentimerenable(void);
uvlong xentimerread(uvlong*);
void xentimerset(uvlong);
PCArch archxen = {
.id= "Xen",
.ident= identify,
.reset= shutdown,
.intrinit= intrinit,
.intrenable= xenintrenable,
.intrvecno= xenintrvecno,
.intrdisable= xenintrdisable,
.clockenable= xentimerenable,
.fastclock= xentimerread,
.timerset= xentimerset,
};
/*
* Placeholders to satisfy external references in generic devarch.c
*/
ulong getcr4(void) { return 0; }
void putcr4(ulong) {}
int inb(int) { return 0; }
ushort ins(int) { return 0; }
ulong inl(int) { return 0; }
void outb(int, int) {}
void outs(int, ushort) {}
void outl(int, ulong) {}
void i8042reset(void) {}
void i8253enable(void) {}
void i8253init(void) {}
void i8253link(void) {}
uvlong i8253read(uvlong*) { return 0; }
void i8253timerset(uvlong) {}
int i8259disable(int) { return 0; }
int i8259enable(Vctl*) { return 0; }
void i8259init(void) {}
int i8259isr(int) { return 0; }
void i8259on(void) {}
void i8259off(void) {}
int i8259vecno(int) { return 0; }
int mtrrprint(char*, long) { return 0; }
int mtrr(uvlong, uvlong, char *) { return 0; }
/*
* XXX until fpsave is debugged
*/
void
fpssesave(FPsave* f)
{
fpx87save(f);
}
void
fpsserestore(FPsave* f)
{
fpx87restore(f);
}

41
sys/src/9/xen/cppx Executable file
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#!/bin/rc
awk '
function qq(s) {
gsub("\"", "£", s)
return "\"@" s "\""
}
/^#include/ { next
}
/^#define.*\\$/ {
save[n++] = $0
print qq($0 "\\")
next
}
(n > 0) && /\\$/ {
save[n++] = $0
print qq($0 "\\")
next
}
(n > 0) {
save[n++] = $0
print qq($0)
for (i = 0; i < n; i++) print save[i]
n = 0
next
}
/^# *((define)|(error)).*[^\\]*$/ {
print qq($0)
print
next
}
/^# *undef.*[^\\]*$/ {
print
print qq($0)
next
}
{ print
}
' $* |
cpp -P |
sed -e 's/£/"/g' -e 's/^"@(.*\\)\\"$/\1/' -e 's/^"@(.*)"$/\1/'

53
sys/src/9/xen/dat.h Normal file
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#include "../pc/dat.h"
typedef unsigned char uint8_t;
typedef unsigned char uint8;
typedef unsigned short uint16_t;
typedef unsigned long uint32_t;
typedef unsigned long long uint64_t;
typedef char int8_t;
typedef short int16_t;
typedef long int32_t;
typedef long long int64_t;
#define __attribute__(x)
enum {
EINVAL,
EACCES,
EEXIST,
EISDIR,
ENOENT,
ENOMEM,
ENOSPC,
EIO,
ENOTEMPTY,
ENOSYS,
EROFS,
EBUSY,
EAGAIN,
EISCONN,
};
#include "xendat.h"
#undef mk_unsigned_long
#define mk_unsigned_long(x) ((unsigned long)(x))
#ifndef set_xen_guest_handle
#define set_xen_guest_handle(hnd, val) hnd = val
#endif
extern ulong hypervisor_virt_start;
extern ulong *patomfn, *matopfn;
extern start_info_t *xenstart;
extern ulong xentop;
extern shared_info_t *HYPERVISOR_shared_info;
/*
* Fake kmap
* XXX is this still viable?
*/
#undef VA
#define VA(k) ((ulong)(k))
#define kmap(p) (KMap*)((p)->pa|KZERO)
#define kunmap(k)

96
sys/src/9/xen/devrtc.c Normal file
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/*
* Xen wall clock
*/
#include "u.h"
#include "../port/lib.h"
#include "mem.h"
#include "dat.h"
#include "fns.h"
#include "../port/error.h"
enum{
Qdir = 0,
Qrtc,
};
Dirtab rtcdir[]={
".", {Qdir, 0, QTDIR}, 0, 0555,
"rtc", {Qrtc, 0}, 0, 0664,
};
static long
rtcread(Chan *c, void *a, long n, vlong offset)
{
if(c->qid.type & QTDIR)
return devdirread(c, a, n, rtcdir, nelem(rtcdir), devgen);
switch((ulong)c->qid.path){
case Qrtc:
return readnum((ulong)offset, a, n, xenwallclock(), 12);
}
error(Ebadarg);
return 0;
}
static long
rtcwrite(Chan*c, void*, long n, vlong)
{
switch((ulong)c->qid.path){
case Qrtc:
return n;
}
error(Eperm);
return 0;
}
static Chan*
rtcattach(char* spec)
{
return devattach('r', spec);
}
static Walkqid*
rtcwalk(Chan* c, Chan *nc, char** name, int nname)
{
return devwalk(c, nc, name, nname, rtcdir, nelem(rtcdir), devgen);
}
static int
rtcstat(Chan* c, uchar* dp, int n)
{
return devstat(c, dp, n, rtcdir, nelem(rtcdir), devgen);
}
static Chan*
rtcopen(Chan* c, int omode)
{
return devopen(c, omode, rtcdir, nelem(rtcdir), devgen);
}
static void
rtcclose(Chan*)
{
}
Dev rtcdevtab = {
'r',
"rtc",
devreset,
devinit,
devshutdown,
rtcattach,
rtcwalk,
rtcstat,
rtcopen,
devcreate,
rtcclose,
rtcread,
devbread,
rtcwrite,
devbwrite,
devremove,
devwstat,
};

590
sys/src/9/xen/devxenstore.c Normal file
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/*
* Driver for xenstore - database shared between domains, used by xenbus to
* communicate configuration info.
*/
#include "u.h"
#include "../port/lib.h"
#include "mem.h"
#include "dat.h"
#include "fns.h"
#include "../port/error.h"
#include "../pc/io.h"
#define LOG(a)
typedef struct Aux Aux;
enum {
Qtopdir,
Qctl,
Qwatch,
WRITING = 0,
READING,
WATCHING,
MAXIO = 8*1024,
};
Dirtab xsdir[] = {
".", {Qtopdir, 0, QTDIR}, 0, 0555,
"xenstore", {Qctl, 0}, 0, 0660,
"xenwatch", {Qwatch, 0}, 0, 0440,
};
struct {
struct xenstore_domain_interface *intf;
struct xsd_sockmsg hdr;
int hdrvalid;
int evtchn;
int nextreqid;
Aux *rhead;
Aux *kernelaux;
Queue *evq;
Rendez wr;
Rendez rr;
QLock;
Lock rlock;
} xenstore;
struct Aux {
QLock;
Rendez qr;
Queue *ioq;
Aux *next;
int state;
int reqid;
};
static char Ephase[] = "phase error";
static char Eproto[] = "protocol error";
static char NodeShutdown[] = "control/shutdown";
static void xenbusproc(void*);
static int
notfull(void*)
{
struct xenstore_domain_interface *xs = xenstore.intf;
return (xs->req_prod-xs->req_cons) < XENSTORE_RING_SIZE;
}
static int
notempty(void*)
{
struct xenstore_domain_interface *xs = xenstore.intf;
return xs->rsp_prod > xs->rsp_cons;
}
static int
ishead(void* a)
{
return xenstore.rhead == a;
}
static void
xsintr(Ureg*, void*)
{
LOG(dprint("xsintr\n");)
wakeup(&xenstore.rr);
wakeup(&xenstore.wr);
}
static void
xwrite(Queue *q, char *buf, int len)
{
struct xenstore_domain_interface *xs;
int m, n;
XENSTORE_RING_IDX idx;
xs = xenstore.intf;
while (len > 0) {
n = XENSTORE_RING_SIZE - (xs->req_prod - xs->req_cons);
if (n == 0) {
xenchannotify(xenstore.evtchn);
sleep(&xenstore.wr, notfull, 0);
continue;
}
if (n > len)
n = len;
idx = MASK_XENSTORE_IDX(xs->req_prod);
m = XENSTORE_RING_SIZE - idx;
if (m > n)
m = n;
if (q)
qread(q, xs->req+idx, m);
else
memmove(xs->req+idx, buf, m);
if (m < n) {
if (q)
qread(q, xs->req, n-m);
else
memmove(xs->req, buf+m, n-m);
}
coherence();
xs->req_prod += n;
xenchannotify(xenstore.evtchn);
if (buf)
buf += n;
len -= n;
}
}
static void
xread(Queue *q, char *buf, int len)
{
struct xenstore_domain_interface *xs = xenstore.intf;
int n, m;
XENSTORE_RING_IDX idx;
for (n = len; n > 0; n -= m) {
while (xs->rsp_prod == xs->rsp_cons) {
xenchannotify(xenstore.evtchn);
if (up == 0)
HYPERVISOR_yield();
else
sleep(&xenstore.rr, notempty, 0);
}
idx = MASK_XENSTORE_IDX(xs->rsp_cons);
m = xs->rsp_prod - xs->rsp_cons;
if (m > n)
m = n;
if (m > XENSTORE_RING_SIZE - idx)
m = XENSTORE_RING_SIZE - idx;
if (q)
qwrite(q, xs->rsp+idx, m);
else if (buf) {
memmove(buf, xs->rsp+idx, m);
buf += m;
}
coherence();
xs->rsp_cons += m;
}
xenchannotify(xenstore.evtchn);
}
static void
xsrpc(Aux *aux)
{
Queue *q;
Aux *l, *r, **lp;
struct xsd_sockmsg hdr;
long n;
q = aux->ioq;
if (aux->state == WATCHING)
aux->reqid = 0;
else {
/* get the request header and check validity */
if (qlen(q) < sizeof hdr)
error(Eproto);
qread(q, &hdr, sizeof hdr);
n = hdr.len;
if (qlen(q) != n)
error(Eproto);
qlock(&xenstore);
/* generate a unique request id */
aux->reqid = ++xenstore.nextreqid;
hdr.req_id = aux->reqid;
hdr.tx_id = 0;
/* send the request */
xwrite(0, (char*)&hdr, sizeof hdr);
xwrite(q, 0, n);
qunlock(&xenstore);
}
/* join list of requests awaiting response */
ilock(&xenstore.rlock);
if (xenstore.rhead == 0) {
aux->next = 0;
xenstore.rhead = aux;
} else {
aux->next = xenstore.rhead->next;
xenstore.rhead->next = aux;
}
iunlock(&xenstore.rlock);
/* loop until matching response header has been received */
if (waserror()) {
ilock(&xenstore.rlock);
for (lp = &xenstore.rhead; *lp && *lp != aux; lp = &(*lp)->next)
;
if (*lp != 0) {
*lp = (*lp)->next;
if (lp == &xenstore.rhead && *lp)
wakeup(&(*lp)->qr);
}
iunlock(&xenstore.rlock);
nexterror();
}
for (;;) {
/* wait until this request reaches head of queue */
if (xenstore.rhead != aux)
sleep(&aux->qr, ishead, aux);
/* wait until a response header (maybe for another request) has been read */
if (!xenstore.hdrvalid) {
xread(0, (char*)&xenstore.hdr, sizeof xenstore.hdr);
xenstore.hdrvalid = 1;
}
if (xenstore.hdr.req_id == aux->reqid)
break;
/* response was for a different request: move matching request to head of queue */
ilock(&xenstore.rlock);
for (l = xenstore.rhead; r = l->next; l = r)
if (xenstore.hdr.req_id == r->reqid) {
l->next = r->next;
r->next = xenstore.rhead;
xenstore.rhead = r;
break;
}
iunlock(&xenstore.rlock);
if (r) {
/* wake the matching request */
wakeup(&r->qr);
} else {
/* response without a request: should be a watch event */
xenstore.hdrvalid = 0;
xread(0, 0, xenstore.hdr.len);
continue;
}
}
/* queue the response header, and data if any, for the caller to read */
qwrite(q, &xenstore.hdr, sizeof xenstore.hdr);
xenstore.hdrvalid = 0;
/* read the data, if any */
if (xenstore.hdr.len > 0)
xread(q, 0, xenstore.hdr.len);
/* remove finished request and wake the next request on the queue */
ilock(&xenstore.rlock);
xenstore.rhead = aux->next;
iunlock(&xenstore.rlock);
poperror();
if (xenstore.rhead != 0)
wakeup(&xenstore.rhead->qr);
}
static void
xsreset()
{
LOG(dprint("xsreset\n");)
}
static void
xsinit()
{
intrenable(xenstore.evtchn, xsintr, 0, BUSUNKNOWN, "Xen store");
kproc("xenbus", xenbusproc, 0);
}
static Chan*
xsattach(char *spec)
{
return devattach('x', spec);
}
static Walkqid*
xswalk(Chan *c, Chan *nc, char **name, int nname)
{
return devwalk(c, nc, name, nname, xsdir, nelem(xsdir), devgen);
}
static int
xsstat(Chan *c, uchar *dp, int n)
{
return devstat(c, dp, n, xsdir, nelem(xsdir), devgen);
}
static Aux*
auxalloc(int initstate)
{
Aux *aux;
Queue *q;
aux = mallocz(sizeof(Aux), 1);
if (aux == 0)
return 0;
q = qopen(MAXIO, 0, 0, 0);
if (q == 0) {
free(aux);
return 0;
}
qnoblock(q, 1);
aux->state = initstate;
aux->ioq = q;
return aux;
}
static Chan*
xsopen(Chan *c, int omode)
{
Aux *aux;
int state;
c = devopen(c, omode, xsdir, nelem(xsdir), devgen);
state = WRITING;
switch ((ulong)c->qid.path) {
case Qwatch:
state = WATCHING;
/* fall through */
case Qctl:
aux = auxalloc(state);
if (aux == 0) {
c->flag &= ~COPEN;
error(Enomem);
}
c->aux = aux;
break;
}
return c;
}
static void
xsclose(Chan* c)
{
Aux *aux;
if ((c->flag&COPEN) == 0)
return;
switch ((ulong)c->qid.path) {
case Qwatch:
case Qctl:
if ((aux = (Aux*)c->aux) != 0) {
qfree(aux->ioq);
free(aux);
c->aux = 0;
}
break;
}
}
static long
xsread(Chan *c, void *a, long n, vlong off)
{
Aux *aux;
Queue *q;
long nr;
USED(off);
if (c->qid.type == QTDIR)
return devdirread(c, a, n, xsdir, nelem(xsdir), devgen);
aux = (Aux*)c->aux;
qlock(aux);
if (waserror()) {
qunlock(aux);
nexterror();
}
q = aux->ioq;
switch (aux->state) {
case WRITING:
if (qlen(q) == 0)
error(Ephase);
xsrpc(aux);
aux->state = READING;
break;
case WATCHING:
if (qlen(q) == 0)
xsrpc(aux);
break;
}
if (!qcanread(q))
nr = 0;
else
nr = qread(q, a, n);
qunlock(aux);
poperror();
return nr;
}
static long
xswrite(Chan *c, void *a, long n, vlong off)
{
Aux *aux;
Queue *q;
long nr;
if (c->qid.type == QTDIR)
error(Eperm);
if ((ulong)c->qid.path == Qwatch)
error(Ebadusefd);
aux = (Aux*)c->aux;
qlock(aux);
if (waserror()) {
qunlock(aux);
nexterror();
}
q = aux->ioq;
if ((off == 0 || aux->state == READING) && qlen(q) > 0)
qflush(q);
aux->state = WRITING;
nr = qwrite(aux->ioq, a, n);
qunlock(aux);
poperror();
return nr;
}
Dev xenstoredevtab = {
'x',
"xenstore",
xsreset,
xsinit,
devshutdown,
xsattach,
xswalk,
xsstat,
xsopen,
devcreate,
xsclose,
xsread,
devbread,
xswrite,
devbwrite,
devremove,
devwstat,
};
static char*
xscmd(Aux *aux, char *buf, int cmd, char *s, char *val)
{
struct xsd_sockmsg *msg;
char *arg;
long n;
msg = (struct xsd_sockmsg*)buf;
arg = buf + sizeof(*msg);
msg->type = cmd;
msg->len = strlen(s)+1;
if (val) {
msg->len += strlen(val);
if (cmd == XS_WATCH)
msg->len++; /* stupid special case */
}
strcpy(arg, s);
if (val)
strcpy(arg+strlen(s)+1, val);
n = sizeof(*msg)+msg->len;
if (up == 0) {
msg->req_id = 1;
msg->tx_id = 0;
xwrite(0, buf, n);
xread(0, buf, sizeof(*msg));
xread(0, arg, msg->len);
} else {
qlock(aux);
if (qlen(aux->ioq) > 0)
qflush(aux->ioq);
qwrite(aux->ioq, buf, n);
xsrpc(aux);
qread(aux->ioq, buf, sizeof(*msg));
LOG(dprint("xs: type %d req_id %d len %d\n", msg->type, msg->req_id, msg->len);)
// XXX buffer overflow
qread(aux->ioq, arg, msg->len);
qunlock(aux);
}
arg[msg->len] = 0;
if (msg->type == XS_ERROR) {
return 0;
}
return arg;
}
static void
intfinit(void)
{
if (xenstore.intf == 0) {
xenstore.intf = (struct xenstore_domain_interface*)mmumapframe(XENBUS, xenstart->store_mfn);
xenstore.evtchn = xenstart->store_evtchn;
xenstore.kernelaux = auxalloc(WRITING);
}
}
void
xenstore_write(char *s, char *val)
{
char buf[512];
intfinit();
xscmd(xenstore.kernelaux, buf, XS_WRITE, s, val);
}
int
xenstore_read(char *s, char *val, int len)
{
char buf[512];
char *p;
intfinit();
p = xscmd(xenstore.kernelaux, buf, XS_READ, s, nil);
if (p == 0)
return -1;
strecpy(val, val+len, p);
return 1;
}
void
xenstore_setd(char *dir, char *node, int value)
{
int off;
char buf[12];
off = strlen(dir);
sprint(dir+off, "%s", node);
sprint(buf, "%ud", value);
xenstore_write(dir, buf);
dir[off] = 0;
}
int
xenstore_gets(char *dir, char *node, char *buf, int buflen)
{
int off;
int n;
off = strlen(dir);
sprint(dir+off, "%s", node);
n = xenstore_read(dir, buf, buflen);
dir[off] = 0;
return n;
}
static void
xenbusproc(void*)
{
Chan *c;
Aux *aux;
char *p;
struct xsd_sockmsg msg;
char buf[512];
int n, m;
c = namec("#x/xenstore", Aopen, ORDWR, 0);
aux = (Aux*)c->aux;
c = namec("#x/xenwatch", Aopen, OREAD, 0);
xscmd(aux, buf, XS_WATCH, NodeShutdown, "$");
for (;;) {
xsread(c, &msg, sizeof(msg), 0);
for (n = msg.len; n > 0; n -= m)
m = xsread(c, buf, msg.len, sizeof(msg));
buf[msg.len] = 0;
if (strcmp(buf, NodeShutdown) != 0)
continue;
p = xscmd(aux, buf, XS_READ, NodeShutdown, nil);
if (p == nil)
continue;
if (strcmp(p, "poweroff") == 0)
reboot(nil, nil, 0);
else if (strcmp(p, "reboot") == 0)
exit(0);
else {
print("xenbus: %s=%s\n", NodeShutdown, p);
xscmd(aux, buf, XS_WRITE, NodeShutdown, "");
}
}
}

248
sys/src/9/xen/dpart.c Normal file
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#include <u.h>
#include <libc.h>
#include <disk.h>
typedef void Fs;
#include "/sys/src/boot/pc/dosfs.h"
enum {
Npart = 32
};
#define GSHORT(p) (((p)[1]<<8)|(p)[0])
#define GLONG(p) ((GSHORT(p+2)<<16)|GSHORT(p))
int
readdisk(Disk *d, void *buf, vlong off, int len)
{
if(seek(d->fd, off, 0) == -1
|| read(d->fd, buf, len) != len)
return -1;
return 0;
}
void
addpart(Disk *d, char *name, ulong s, ulong e)
{
print("%s: part %s %lud %lud\n", d->prefix, name, s, e);
fprint(d->ctlfd, "part %s %lud %lud\n", name, s, e);
}
int
isdos(int t)
{
return t==FAT12 || t==FAT16 || t==FATHUGE || t==FAT32 || t==FAT32X;
}
int
isextend(int t)
{
return t==EXTEND || t==EXTHUGE || t==LEXTEND;
}
/* build a cdboot partition if there is an embedded boot floppy image */
int
cdpart(Disk *d)
{
uchar buf[2048];
ulong a, n;
uchar *p;
if(readdisk(d, buf, 17*2048, 2048) == -1
|| strcmp((char*)buf+1, "CD001\x01EL TORITO SPECIFICATION") != 0)
return 0;
p = buf + 0x47;
a = p[0] | (p[1]<<8) | (p[2]<<16) | (p[3]<<24);
if(readdisk(d, buf, a*2048, 2048) == -1
|| memcmp((char*)buf, "\x01\x00\x00\x00", 4) != 0
|| memcmp((char*)buf+30, "\x55\xAA", 2) != 0
|| buf[0x20] != 0x88)
return 0;
p = buf+0x28;
a = p[0]|(p[1]<<8)|(p[2]<<16)|(p[3]<<24);
switch(buf[0x21]) {
case 1: n = 1200*1024; break;
case 2: n = 1440*1024; break;
case 3: n = 2880*1024; break;
default: return 0;
}
a = a * (uvlong)2048 / d->secsize;
n /= d->secsize;
addpart(d, "cdboot", a, a+n);
return 1;
}
int
p9part(Disk *d, char *name, ulong pstart)
{
char partbuf[512];
char *field[4], *line[Npart+1], *name2;
ulong start, end;
int i, n;
name2 = smprint("%s%s", d->prefix, name);
d = opendisk(name2, 1, 0);
if(!d) {
fprint(2, "%s: %r\n", name2);
free(name2);
return 0;
}
free(name2);
if(readdisk(d, partbuf, 512, sizeof partbuf) == -1)
return 0;
partbuf[sizeof partbuf - 1] = '\0';
if(strncmp(partbuf, "part ", 5) != 0
|| (n = getfields(partbuf, line, Npart+1, 0, "\n")) == 0)
return 0;
for(i = 0; i < n; i++) {
if(strncmp(line[i], "part ", 5) != 0)
break;
if(getfields(line[i], field, 4, 0, " ") != 4)
break;
start = strtoul(field[2], 0, 0);
end = strtoul(field[3], 0, 0);
if(start >= end)
break;
addpart(d, field[1], pstart+start, pstart+end);
}
return 0;
}
int
mbrpart(Disk *d)
{
uchar mbrbuf[512];
char name[10];
Dospart *dp;
ulong taboffset, start, end;
ulong firstxpart, nxtxpart;
int i, nplan9, havedos;
#define readmbr() \
if(readdisk(d, mbrbuf, (uvlong)taboffset*512, sizeof mbrbuf) == -1 \
|| mbrbuf[0x1FE] != 0x55 || mbrbuf[0x1FF] != 0xAA) \
return 0
if(d->secsize > 512)
return 0;
dp = (Dospart*)&mbrbuf[0x1BE];
taboffset = 0;
if(1) {
/* get the MBR (allowing for DMDDO) */
readmbr();
for(i = 0; i < 4; i++) {
if(dp[i].type == DMDDO) {
taboffset = 63;
readmbr();
i = -1; /* start over */
}
}
}
/*
* Read the partitions, first from the MBR and then
* from successive extended partition tables.
*/
nplan9 = 0;
havedos = 0;
firstxpart = 0;
for(;;) {
readmbr();
nxtxpart = 0;
for(i = 0; i < 4; i++) {
/* partition offsets are relative to taboffset */
start = taboffset+GLONG(dp[i].start);
end = start+GLONG(dp[i].len);
if(dp[i].type == PLAN9) {
if(nplan9 == 0)
strcpy(name, "plan9");
else
sprint(name, "plan9.%d", nplan9);
addpart(d, name, start, end);
p9part(d, name, start);
nplan9++;
}
if(!havedos && isdos(dp[i].type)) {
havedos = 1;
addpart(d, "dos", start, end);
}
/* nxtxpart is relative to firstxpart (or 0), not taboffset */
if(isextend(dp[i].type))
nxtxpart = start-taboffset+firstxpart;
}
if(!nxtxpart)
break;
if(!firstxpart)
firstxpart = nxtxpart;
taboffset = nxtxpart;
}
return nplan9 + havedos;
}
void
partall(void)
{
Disk *d;
Dir *ent;
char *name;
int fd, i, n;
fd = open("#S", OREAD);
if(fd == -1) {
fprint(2, "No disk\n");
return;
}
while((n = dirread(fd, &ent)) > 0) {
for(i = 0; i < n; i++) {
if(ent[i].mode & DMDIR) {
name = smprint("#S/%s/data", ent[i].name);
d = opendisk(name, 1, 0);
if(!d) {
fprint(2, "%s: %r\n", name);
continue;
}
// XXX not safe yet: if(!mbrpart(d) && !cdpart(d) && !p9part(d, "data", 0))
if(!mbrpart(d) && !cdpart(d))
fprint(2, "%s: no partitions\n", name);
close(d->fd);
}
}
}
close(fd);
}
void
main(int argc, char **argv)
{
USED(argc, argv);
fmtinstall('r', errfmt);
bind("#c", "/dev", MBEFORE);
open("/dev/cons", OREAD);
open("/dev/cons", OWRITE);
open("/dev/cons", OWRITE);
partall();
close(0);
close(1);
close(2);
exec("/boot/boot2", argv);
exits(0);
}

494
sys/src/9/xen/etherxen.c Normal file
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/*
* Xen virtual network interface frontend
*/
#include "u.h"
#include "../port/lib.h"
#include "mem.h"
#include "dat.h"
#include "fns.h"
#include "io.h"
#include "../port/error.h"
#include "../port/netif.h"
#include "etherif.h"
#define LOG(a)
enum {
Nvif = 4,
Ntb = 16,
Nrb = 32,
};
typedef struct Ctlr Ctlr;
typedef union Txframe Txframe;
typedef union Rxframe Rxframe;
struct Ctlr {
int attached;
int backend;
int vifno;
int evtchn;
int rxcopy;
Txframe *txframes;
Txframe *freetxframe;
Rxframe *rxframes;
netif_tx_front_ring_t txring;
netif_rx_front_ring_t rxring;
int *txrefs;
int *rxrefs;
int txringref;
int rxringref;
Lock txlock;
QLock attachlock;
Rendez wtxframe;
Rendez wtxblock;
ulong interrupts;
ulong transmits;
ulong receives;
ulong txerrors;
ulong rxerrors;
ulong rxoverflows;
};
union Txframe {
struct {
Txframe *next;
char data[2];
} tf;
uchar page[BY2PG];
};
union Rxframe {
uchar page[BY2PG];
};
static int nvif;
/*
* conversions to machine page numbers, pages and addresses
*/
#define MFN(pa) (patomfn[(pa)>>PGSHIFT])
#define MFNPG(pa) (MFN(pa)<<PGSHIFT)
#define PA2MA(pa) (MFNPG(pa) | PGOFF(pa))
#define VA2MA(va) PA2MA(PADDR(va))
static int
puttxrequest(Ctlr *ctlr, netif_tx_request_t *tr)
{
netif_tx_request_t *req;
int i, notify;
LOG(dprint("puttxrequest id %d ref %d size %d\n", tr->id, tr->gref, tr->size);)
i = ctlr->txring.req_prod_pvt;
req = RING_GET_REQUEST(&ctlr->txring, i);
memmove(req, tr, sizeof(*req));
ctlr->txring.req_prod_pvt = i+1;
RING_PUSH_REQUESTS_AND_CHECK_NOTIFY(&ctlr->txring, notify);
return notify;
}
static int
putrxrequest(Ctlr *ctlr, netif_rx_request_t *rr)
{
netif_rx_request_t *req;
int i;
int notify;
LOG(dprint("putrxrequest %d %d\n", rr->id, rr->gref);)
i = ctlr->rxring.req_prod_pvt;
req = RING_GET_REQUEST(&ctlr->rxring, i);
memmove(req, rr, sizeof(*req));
ctlr->rxring.req_prod_pvt = i+1;
RING_PUSH_REQUESTS_AND_CHECK_NOTIFY(&ctlr->rxring, notify);
return notify;
}
static int
gettxresponse(Ctlr *ctlr, netif_tx_response_t *tr)
{
int i, avail;
netif_tx_response_t *rx;
RING_FINAL_CHECK_FOR_RESPONSES(&ctlr->txring, avail);
if (!avail)
return 0;
i = ctlr->txring.rsp_cons;
rx = RING_GET_RESPONSE(&ctlr->txring, i);
LOG(dprint("gettxresponse id %d status %d\n", rx->id, rx->status);)
if(rx->status)
ctlr->txerrors++;
*tr = *rx;
ctlr->txring.rsp_cons = ++i;
return 1;
}
static int
getrxresponse(Ctlr *ctlr, netif_rx_response_t* rr)
{
int i, avail;
netif_rx_response_t *rx;
RING_FINAL_CHECK_FOR_RESPONSES(&ctlr->rxring, avail);
if (!avail)
return 0;
i = ctlr->rxring.rsp_cons;
rx = RING_GET_RESPONSE(&ctlr->rxring, i);
LOG(dprint("getrxresponse id %d offset %d flags %ux status %d\n", rx->id, rx->offset, rx->flags, rx->status);)
*rr = *rx;
ctlr->rxring.rsp_cons = ++i;
return 1;
}
static int
ringinit(Ctlr *ctlr, char *a)
{
netif_tx_sring_t *txr;
netif_rx_sring_t *rxr;
txr = (netif_tx_sring_t*)a;
memset(txr, 0, BY2PG);
SHARED_RING_INIT(txr);
FRONT_RING_INIT(&ctlr->txring, txr, BY2PG);
ctlr->txringref = shareframe(ctlr->backend, txr, 1);
rxr = (netif_rx_sring_t*)(a+BY2PG);
SHARED_RING_INIT(rxr);
FRONT_RING_INIT(&ctlr->rxring, rxr, BY2PG);
ctlr->rxringref = shareframe(ctlr->backend, rxr, 1);
return 2*BY2PG;
}
static int
vifsend(Ctlr *ctlr, Block *bp)
{
netif_tx_request_t tr;
Txframe *tx;
int id;
ilock(&ctlr->txlock);
tx = ctlr->freetxframe;
ctlr->freetxframe = tx->tf.next;
iunlock(&ctlr->txlock);
id = tx - ctlr->txframes;
tr.gref = ctlr->txrefs[id];
tr.offset = tx->tf.data - (char*)tx;
tr.flags = 0; // XXX checksum?
tr.id = id;
tr.size = BLEN(bp);
memmove(tx->tf.data, bp->rp, tr.size);
return puttxrequest(ctlr, &tr);
}
static int
vifsenddone(Ctlr *ctlr, netif_tx_response_t *tr)
{
Txframe *tx;
tx = &ctlr->txframes[tr->id]; // XXX check validity of id
ilock(&ctlr->txlock);
tx->tf.next = ctlr->freetxframe;
ctlr->freetxframe = tx;
iunlock(&ctlr->txlock);
return 1;
}
static int
vifrecv(Ctlr *ctlr, Rxframe *rx)
{
netif_rx_request_t rr;
int id;
int ref;
id = rx - ctlr->rxframes;
if (ctlr->rxcopy)
ref = ctlr->rxrefs[id];
else {
ref = donateframe(ctlr->backend, rx);
ctlr->rxrefs[id] = ref;
}
rr.id = id;
rr.gref = ref;
return putrxrequest(ctlr, &rr);
}
static int
vifrecvdone(Ether *ether, netif_rx_response_t *rr)
{
Ctlr *ctlr;
Rxframe *rx;
Block *bp;
int len;
ctlr = ether->ctlr;
rx = &ctlr->rxframes[rr->id]; // XXX check validity of id
if (!ctlr->rxcopy)
acceptframe(ctlr->rxrefs[rr->id], rx);
if ((len = rr->status) <= 0) {
ctlr->rxerrors++;
vifrecv(ctlr, rx);
return 1;
}
if(len > sizeof(Etherpkt) || (bp = iallocb(sizeof(Etherpkt))) == nil) {
ctlr->rxoverflows++;
vifrecv(ctlr, rx);
return 1;
}
ctlr->receives++;
memmove(bp->base, rx->page + rr->offset, len);
vifrecv(ctlr, rx);
bp->rp = bp->base;
bp->wp = bp->rp + len;
bp->free = 0;
bp->next = 0;
bp->list = 0;
if (rr->flags & NETRXF_data_validated)
bp->flag |= Btcpck|Budpck;
etheriq(ether, bp, 1);
return 0;
}
static int
wtxframe(void *a)
{
return ((struct Ctlr*)a)->freetxframe != 0;
}
static int
wtxblock(void *a)
{
return qcanread(((struct Ether*)a)->oq);
}
static void
etherxenproc(void *a)
{
Ether *ether = a;
Ctlr *ctlr = ether->ctlr;
Block *bp;
int notify;
for (;;) {
while (ctlr->freetxframe == 0)
sleep(&ctlr->wtxframe, wtxframe, ctlr);
while ((bp = qget(ether->oq)) == 0)
sleep(&ctlr->wtxblock, wtxblock, ether);
notify = vifsend(ctlr, bp);
freeb(bp);
if (notify)
xenchannotify(ctlr->evtchn);
}
}
static void
etherxentransmit(Ether *ether)
{
Ctlr *ctlr;
ctlr = ether->ctlr;
ctlr->transmits++;
wakeup(&ctlr->wtxblock);
}
static void
etherxenintr(Ureg*, void *a)
{
Ether *ether = a;
Ctlr *ctlr = ether->ctlr;
int txnotify;
netif_tx_response_t tr;
netif_rx_response_t rr;
ctlr->interrupts++;
txnotify = 0;
while (getrxresponse(ctlr, &rr))
vifrecvdone(ether, &rr);
while (gettxresponse(ctlr, &tr)) {
if (vifsenddone(ctlr, &tr))
txnotify = 1;
}
if (txnotify)
wakeup(&ctlr->wtxframe);
}
static long
etherxenctl(Ether *ether, void *buf, long n)
{
uchar ea[Eaddrlen];
Cmdbuf *cb;
cb = parsecmd(buf, n);
if(cb->nf >= 2
&& strcmp(cb->f[0], "ea")==0
&& parseether(ea, cb->f[1]) == 0){
free(cb);
memmove(ether->ea, ea, Eaddrlen);
memmove(ether->addr, ether->ea, Eaddrlen);
return 0;
}
free(cb);
error(Ebadctl);
return -1; /* not reached */
}
static void
backendconnect(Ctlr *ctlr)
{
char dir[64];
char buf[64];
sprint(dir, "device/vif/%d/", ctlr->vifno);
xenstore_setd(dir, "state", XenbusStateInitialising);
xenstore_setd(dir, "tx-ring-ref", ctlr->txringref);
xenstore_setd(dir, "rx-ring-ref", ctlr->rxringref);
xenstore_setd(dir, "event-channel", ctlr->evtchn);
print("etherxen: request-rx-copy=%d\n", ctlr->rxcopy);
if (ctlr->rxcopy)
xenstore_setd(dir, "request-rx-copy", 1);
xenstore_setd(dir, "state", XenbusStateConnected);
xenstore_gets(dir, "backend", buf, sizeof buf);
sprint(dir, "%s/", buf);
HYPERVISOR_yield();
xenstore_gets(dir, "state", buf, sizeof buf);
while (strtol(buf, 0, 0) != XenbusStateConnected) {
print("etherxen: waiting for vif %d to connect\n", ctlr->vifno);
tsleep(&up->sleep, return0, 0, 1000);
xenstore_gets(dir, "state", buf, sizeof buf);
}
}
static void
etherxenattach(Ether *ether)
{
Ctlr *ctlr;
char *p;
Txframe *tx;
int npage, i;
LOG(dprint("etherxenattach\n");)
ctlr = ether->ctlr;
qlock(&ctlr->attachlock);
if (ctlr->attached) {
qunlock(&ctlr->attachlock);
return;
}
npage = 2 + Ntb + Nrb;
p = (char*)xspanalloc(npage<<PGSHIFT, BY2PG, 0);
p += ringinit(ctlr, p);
ctlr->txrefs = malloc(Ntb*sizeof(int));
ctlr->rxrefs = malloc(Nrb*sizeof(int));
ctlr->txframes = (Txframe*)p;
for (i = 0; i < Ntb; i++, p += BY2PG) {
tx = (Txframe*)p;
if (i != Ntb-1)
tx->tf.next = tx + 1;
else
tx->tf.next = 0;
ctlr->txrefs[i] = shareframe(ctlr->backend, tx, 0);
}
ctlr->freetxframe = ctlr->txframes;
ctlr->rxframes = (Rxframe*)p;
for (i = 0; i < Nrb; i++, p += BY2PG) {
if (ctlr->rxcopy)
ctlr->rxrefs[i] = shareframe(ctlr->backend, (Rxframe*)p, 1);
vifrecv(ctlr, (Rxframe*)p);
}
ctlr->evtchn = xenchanalloc(ctlr->backend);
intrenable(ctlr->evtchn, etherxenintr, ether, BUSUNKNOWN, "vif");
kproc("vif", etherxenproc, ether);
backendconnect(ctlr);
ctlr->attached = 1;
qunlock(&ctlr->attachlock);
}
static void
etherxenmulticast(void* arg, uchar* addr, int on)
{
USED(arg, addr, on);
}
static long
ifstat(Ether* ether, void* a, long n, ulong offset)
{
Ctlr *ctlr;
char *buf, *p;
int l, len;
ctlr = ether->ctlr;
if(n == 0)
return 0;
if((p = malloc(READSTR)) == nil)
error(Enomem);
l = snprint(p, READSTR, "intr: %lud\n", ctlr->interrupts);
l += snprint(p+l, READSTR-l, "transmits: %lud\n", ctlr->transmits);
l += snprint(p+l, READSTR-l, "receives: %lud\n", ctlr->receives);
l += snprint(p+l, READSTR-l, "txerrors: %lud\n", ctlr->txerrors);
l += snprint(p+l, READSTR-l, "rxerrors: %lud\n", ctlr->rxerrors);
snprint(p+l, READSTR-l, "rxoverflows: %lud\n", ctlr->rxoverflows);
buf = a;
len = readstr(offset, buf, n, p);
free(p);
return len;
}
static int
pnp(Ether* ether)
{
uchar ea[Eaddrlen];
char dir[64];
char buf[64];
Ctlr *ctlr;
int domid, rxcopy;
if (nvif > Nvif)
return -1;
sprint(dir, "device/vif/%d/", nvif);
if (xenstore_gets(dir, "backend-id", buf, sizeof buf) <= 0)
return -1;
domid = strtol(buf, 0, 0);
if (xenstore_gets(dir, "mac", buf, sizeof buf) <= 0)
return -1;
if (parseether(ea, buf) < 0)
return -1;
if (xenstore_gets(dir, "backend", buf, sizeof buf) <= 0)
return 1;
sprint(dir, "%s/", buf);
rxcopy = 0;
if (xenstore_gets(dir, "feature-rx-copy", buf, sizeof buf) >= 0)
rxcopy = strtol(buf, 0, 0);
ether->ctlr = ctlr = malloc(sizeof(Ctlr));
memset(ctlr, 0, sizeof(Ctlr));
ctlr->backend = domid;
ctlr->vifno = nvif++;
ctlr->rxcopy = rxcopy;
memmove(ether->ea, ea, sizeof ether->ea);
ether->mbps = 100; // XXX what speed?
ether->attach = etherxenattach;
ether->detach = nil;
ether->transmit = etherxentransmit;
ether->irq = -1;
ether->tbdf = BUSUNKNOWN;
ether->interrupt = etherxenintr;
ether->ifstat = ifstat;
ether->ctl = etherxenctl;
ether->promiscuous = nil;
ether->multicast = etherxenmulticast;
ether->arg = ether;
return 0;
}
void
etherxenlink(void)
{
addethercard("xen", pnp);
}

164
sys/src/9/xen/fns.h Normal file
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#include "../port/portfns.h"
Dirtab* addarchfile(char*, int, long(*)(Chan*,void*,long,vlong), long(*)(Chan*,void*,long,vlong));
void archinit(void);
void bootargs(ulong);
ulong cankaddr(ulong);
int cistrcmp(char*, char*);
int cistrncmp(char*, char*, int);
#define clearmmucache() /* x86 doesn't have one */
void clockintr(Ureg*, void*);
int (*cmpswap)(long*, long, long);
int cmpswap486(long*, long, long);
void (*coherence)(void);
void cpuid(int, ulong regs[]);
int cpuidentify(void);
void cpuidprint(void);
void (*cycles)(uvlong*);
void delay(int);
#define evenaddr(x) /* x86 doesn't care */
void fpclear(void);
void fpenv(FPsave*);
void fpinit(void);
void fpoff(void);
void (*fprestore)(FPsave*);
void (*fpsave)(FPsave*);
void fpsserestore(FPsave*);
void fpsserestore0(FPsave*);
void fpssesave(FPsave*);
void fpssesave0(FPsave*);
ulong fpstatus(void);
void fpx87restore(FPsave*);
void fpx87save(FPsave*);
ulong getcr4(void);
char* getconf(char*);
void guesscpuhz(int);
void halt(void);
void mwait(void*);
void i8042reset(void);
void i8253enable(void);
void i8253init(void);
void i8253link(void);
uvlong i8253read(uvlong*);
void i8253timerset(uvlong);
int i8259disable(int);
int i8259enable(Vctl*);
void i8259init(void);
int i8259isr(int);
void i8259on(void);
void i8259off(void);
int i8259vecno(int);
void idle(void);
void idlehands(void);
int inb(int);
void insb(int, void*, int);
ushort ins(int);
void inss(int, void*, int);
ulong inl(int);
void insl(int, void*, int);
int intrdisable(int, void (*)(Ureg *, void *), void*, int, char*);
void intrenable(int, void (*)(Ureg*, void*), void*, int, char*);
int ioalloc(int, int, int, char*);
int isaconfig(char*, int, ISAConf*);
void kbdenable(void);
#define kmapinval()
void lgdt(ushort[3]); // XXX remove and in l.s
void lidt(ushort[3]); // XXX remove and in l.s
void links(void);
void ltr(ulong); // XXX remove?
void mach0init(void);
void mathinit(void);
void mb386(void);
void mb586(void);
void mfence(void);
void mmuflushtlb(Page*);
void mmuinit(void);
ulong mmukmap(ulong, ulong, int);
int mmukmapsync(ulong);
#define mmunewpage(x)
ulong* mmuwalk(ulong*, ulong, int, int);
int mtrr(uvlong, uvlong, char *);
int mtrrprint(char *, long);
void outb(int, int);
void outsb(int, void*, int);
void outs(int, ushort);
void outss(int, void*, int);
void outl(int, ulong);
void outsl(int, void*, int);
void printcpufreq(void);
void procrestore(Proc*);
void procsave(Proc*);
void procsetup(Proc*);
void procfork(Proc*);
void putcr4(ulong);
int rdmsr(int, vlong*);
int screenprint(char*, ...); /* debugging */
void (*screenputs)(char*, int);
void touser(void*);
void trap(Ureg*);
void trapenable(int, void (*)(Ureg*, void*), void*, char*);
void trapinit(void);
int tas(void*);
#define userureg(ur) (((ur)->cs & 0xFFFF) == UESEL)
void vectortable(void);
int wrmsr(int, vlong);
uint xchgl(uint*, uint);
uint xchgw(ushort*, uint);
uint xchgb(uchar*, uint);
#define waserror() (up->nerrlab++, setlabel(&up->errlab[up->nerrlab-1]))
#define KADDR(a) ((void*)((ulong)(a)|KZERO))
#define PADDR(a) ((ulong)(a)&~KZERO)
#define dcflush(a, b)
/* Xen functions */
#define rmb() coherence()
#define wmb() coherence()
void mb(void);
void hypervisor_callback(void), failsafe_callback(void);
void xenconsinit(void);
ulong mmumapframe(ulong, ulong);
void mmumapcpu0(void);
void dprint(char *, ...);
void xenupdate(ulong *ptr, ulong val);
void xenupdatema(ulong *ptr, uvlong val);
int xenpdptpin(ulong va);
int xenpgdpin(ulong va);
int xenptpin(ulong va);
void xenptunpin(ulong va);
void xenptswitch(ulong pa);
void xentlbflush(void);
int ffs(ulong);
void xengrantinit(void);
int xengrant(domid_t domid, ulong frame, int flags);
int xengrantend(int ref);
void acceptframe(int ref, void *va);
int donateframe(int domid, void *va);
int shareframe(int domid, void *va, int write);
void xenchannotify(int);
void xenupcall(Ureg*);
ulong xenwallclock(void);
int xenstore_read(char*, char*, int);
void xenstore_write(char*, char*);
void xenstore_setd(char *dir, char *node, int value);
int xenstore_gets(char *dir, char *node, char *buf, int buflen);
int xenchanalloc(int);
long HYPERVISOR_set_timer_op(uvlong timeout);
int HYPERVISOR_set_trap_table(trap_info_t *table);
int HYPERVISOR_mmu_update(mmu_update_t *req, int count, int *success_count, domid_t domid);
int HYPERVISOR_mmuext_op(struct mmuext_op *op, int count, int *scount, domid_t domid);
int HYPERVISOR_set_gdt(ulong *frame_list, int entries);
int HYPERVISOR_stack_switch(ulong ss, ulong esp);
int HYPERVISOR_set_callbacks(ulong evss, ulong evfunc, ulong fsss, ulong fsfunc);
int HYPERVISOR_fpu_taskswitch(void);
int HYPERVISOR_yield(void);
int HYPERVISOR_block(void);
int HYPERVISOR_shutdown(int);
int HYPERVISOR_multicall(void *call_list, int nr_calls);
int HYPERVISOR_event_channel_op(void *op);
int HYPERVISOR_xen_version(int cmd, void *arg);
int HYPERVISOR_console_io(int cmd, int count, char *str);
int HYPERVISOR_grant_table_op(int cmd, gnttab_setup_table_t *setup, int count);
int HYPERVISOR_memory_op(int cmd, struct xen_memory_reservation *arg);

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sys/src/9/xen/l.s Normal file
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#include "xendefs.h"
#include "mem.h"
/*
* Some machine instructions not handled by 8[al].
*/
#define OP16 BYTE $0x66
#define DELAY BYTE $0xEB; BYTE $0x00 /* JMP .+2 */
#define CPUID BYTE $0x0F; BYTE $0xA2 /* CPUID, argument in AX */
#define WRMSR BYTE $0x0F; BYTE $0x30 /* WRMSR, argument in AX/DX (lo/hi) */
#define RDTSC BYTE $0x0F; BYTE $0x31 /* RDTSC, result in AX/DX (lo/hi) */
#define RDMSR BYTE $0x0F; BYTE $0x32 /* RDMSR, result in AX/DX (lo/hi) */
#define HLT BYTE $0xF4
#define BSFL BYTE $0xf; BYTE $0xbc; BYTE $0xc0 /* bsfl AX,AX */
/*
* Macros for calculating offsets within the page directory base
* and page tables. Note that these are assembler-specific hence
* the '<<2'.
*/
#define PDO(a) (((((a))>>22) & 0x03FF)<<2)
#define PTO(a) (((((a))>>12) & 0x03FF)<<2)
/*
* Entry point from XEN's "linux" builder.
* At this point RAM from 0..4M ("physical") is mapped at KZERO,
* the kernel is loaded, we're running on a boot stack and a
* boot page table. The start_info structure describes the
* situation, and is pointed to by SI.
* The stack is the highest used address.
*/
TEXT _start(SB), $0
MOVL SP, xentop(SB) /* set global for top of mapped region */
MOVL SI, xenstart(SB) /* set global to start_info_t */
MOVL $0, AX /* clear EFLAGS */
PUSHL AX
POPFL
CALL mmumapcpu0(SB) /* make mapping before using stack */
MOVL $(MACHADDR+MACHSIZE-4), SP /* set stack */
CALL main(SB)
/*
* Park a processor. Should never fall through a return from main to here,
* should only be called by application processors when shutting down.
*/
TEXT idle(SB), $0
_idle:
STI
HLT
JMP _idle
/*
* Read/write various system registers.
* CR4 and the 'model specific registers' should only be read/written
* after it has been determined the processor supports them
*/
TEXT lgdt(SB), $0 /* GDTR - global descriptor table */
MOVL gdtptr+0(FP), AX
MOVL (AX), GDTR
RET
TEXT lidt(SB), $0 /* IDTR - interrupt descriptor table */
MOVL idtptr+0(FP), AX
MOVL (AX), IDTR
RET
TEXT ltr(SB), $0 /* TR - task register */
MOVL tptr+0(FP), AX
MOVW AX, TASK
RET
TEXT rtsr(SB), $0
MOVW TASK, AX
RET
TEXT _cycles(SB), $0 /* time stamp counter; cycles since power up */
RDTSC
MOVL vlong+0(FP), CX /* &vlong */
MOVL AX, 0(CX) /* lo */
MOVL DX, 4(CX) /* hi */
RET
TEXT rdmsr(SB), $0 /* model-specific register */
MOVL index+0(FP), CX
RDMSR
MOVL vlong+4(FP), CX /* &vlong */
MOVL AX, 0(CX) /* lo */
MOVL DX, 4(CX) /* hi */
RET
TEXT wrmsr(SB), $0
MOVL index+0(FP), CX
MOVL lo+4(FP), AX
MOVL hi+8(FP), DX
/* Xen doesn't let us do this
WRMSR
*/
RET
/*
* Try to determine the CPU type which requires fiddling with EFLAGS.
* If the Id bit can be toggled then the CPUID instruction can be used
* to determine CPU identity and features. First have to check if it's
* a 386 (Ac bit can't be set). If it's not a 386 and the Id bit can't be
* toggled then it's an older 486 of some kind.
*
* cpuid(fun, regs[4]);
*/
TEXT cpuid(SB), $0
MOVL $0x240000, AX
PUSHL AX
POPFL /* set Id|Ac */
PUSHFL
POPL BX /* retrieve value */
MOVL $0, AX
PUSHL AX
POPFL /* clear Id|Ac, EFLAGS initialised */
PUSHFL
POPL AX /* retrieve value */
XORL BX, AX
TESTL $0x040000, AX /* Ac */
JZ _cpu386 /* can't set this bit on 386 */
TESTL $0x200000, AX /* Id */
JZ _cpu486 /* can't toggle this bit on some 486 */
MOVL fn+0(FP), AX
CPUID
JMP _cpuid
_cpu486:
MOVL $0x400, AX
JMP _maybezapax
_cpu386:
MOVL $0x300, AX
_maybezapax:
CMPL fn+0(FP), $1
JE _zaprest
XORL AX, AX
_zaprest:
XORL BX, BX
XORL CX, CX
XORL DX, DX
_cpuid:
MOVL regs+4(FP), BP
MOVL AX, 0(BP)
MOVL BX, 4(BP)
MOVL CX, 8(BP)
MOVL DX, 12(BP)
RET
/*
* Floating point.
* Note: the encodings for the FCLEX, FINIT, FSAVE, FSTCW, FSENV and FSTSW
* instructions do NOT have the WAIT prefix byte (i.e. they act like their
* FNxxx variations) so WAIT instructions must be explicitly placed in the
* code as necessary.
*/
#define FPOFF(l) ;\
MOVL CR0, AX ;\
ANDL $0xC, AX /* EM, TS */ ;\
CMPL AX, $0x8 ;\
JEQ l ;\
WAIT ;\
l: ;\
MOVL CR0, AX ;\
ANDL $~0x4, AX /* EM=0 */ ;\
ORL $0x28, AX /* NE=1, TS=1 */ ;\
MOVL AX, CR0
#define FPON ;\
MOVL CR0, AX ;\
ANDL $~0xC, AX /* EM=0, TS=0 */ ;\
MOVL AX, CR0
TEXT fpoff(SB), $0 /* disable */
FPOFF(l1)
RET
TEXT fpinit(SB), $0 /* enable and init */
FPON
FINIT
WAIT
/* setfcr(FPPDBL|FPRNR|FPINVAL|FPZDIV|FPOVFL) */
/* note that low 6 bits are masks, not enables, on this chip */
PUSHW $0x0232
FLDCW 0(SP)
POPW AX
WAIT
RET
TEXT fpx87save(SB), $0 /* save state and disable */
MOVL p+0(FP), AX
FSAVE 0(AX) /* no WAIT */
FPOFF(l2)
RET
TEXT fpx87restore(SB), $0 /* enable and restore state */
FPON
MOVL p+0(FP), AX
FRSTOR 0(AX)
WAIT
RET
TEXT fpstatus(SB), $0 /* get floating point status */
FSTSW AX
RET
TEXT fpenv(SB), $0 /* save state without waiting */
MOVL p+0(FP), AX
FSTENV 0(AX)
RET
TEXT fpclear(SB), $0 /* clear pending exceptions */
FPON
FCLEX /* no WAIT */
FPOFF(l3)
RET
/*
* Test-And-Set
*/
TEXT tas(SB), $0
MOVL $0xDEADDEAD, AX
MOVL lock+0(FP), BX
XCHGL AX, (BX) /* lock->key */
RET
TEXT _xinc(SB), $0 /* void _xinc(long*); */
MOVL l+0(FP), AX
LOCK; INCL 0(AX)
RET
TEXT _xdec(SB), $0 /* long _xdec(long*); */
MOVL l+0(FP), BX
XORL AX, AX
LOCK; DECL 0(BX)
JLT _xdeclt
JGT _xdecgt
RET
_xdecgt:
INCL AX
RET
_xdeclt:
DECL AX
RET
TEXT getstack(SB), $0
MOVL SP, AX
RET
TEXT mb386(SB), $0
POPL AX /* return PC */
PUSHFL
PUSHL CS
PUSHL AX
IRETL
TEXT mb586(SB), $0
XORL AX, AX
CPUID
RET
TEXT sfence(SB), $0
BYTE $0x0f
BYTE $0xae
BYTE $0xf8
RET
TEXT lfence(SB), $0
BYTE $0x0f
BYTE $0xae
BYTE $0xe8
RET
TEXT mfence(SB), $0
BYTE $0x0f
BYTE $0xae
BYTE $0xf0
RET
TEXT xchgw(SB), $0
MOVL v+4(FP), AX
MOVL p+0(FP), BX
XCHGW AX, (BX)
RET
TEXT xchgb(SB), $0
MOVL v+4(FP), AX
MOVL p+0(FP), BX
XCHGB AX, (BX)
RET
TEXT xchgl(SB), $0
MOVL v+4(FP), AX
MOVL p+0(FP), BX
XCHGL AX, (BX)
RET
/* Return the position of the first bit set. Undefined if zero. */
TEXT ffs(SB), $0
MOVL v+0(FP), AX
BSFL
RET
TEXT cmpswap486(SB), $0
MOVL addr+0(FP), BX
MOVL old+4(FP), AX
MOVL new+8(FP), CX
LOCK
BYTE $0x0F; BYTE $0xB1; BYTE $0x0B /* CMPXCHGL CX, (BX) */
JNZ didnt
MOVL $1, AX
RET
didnt:
XORL AX,AX
RET
TEXT mul64fract(SB), $0
MOVL r+0(FP), CX
XORL BX, BX /* BX = 0 */
MOVL a+8(FP), AX
MULL b+16(FP) /* a1*b1 */
MOVL AX, 4(CX) /* r2 = lo(a1*b1) */
MOVL a+8(FP), AX
MULL b+12(FP) /* a1*b0 */
MOVL AX, 0(CX) /* r1 = lo(a1*b0) */
ADDL DX, 4(CX) /* r2 += hi(a1*b0) */
MOVL a+4(FP), AX
MULL b+16(FP) /* a0*b1 */
ADDL AX, 0(CX) /* r1 += lo(a0*b1) */
ADCL DX, 4(CX) /* r2 += hi(a0*b1) + carry */
MOVL a+4(FP), AX
MULL b+12(FP) /* a0*b0 */
ADDL DX, 0(CX) /* r1 += hi(a0*b0) */
ADCL BX, 4(CX) /* r2 += carry */
RET
/*
* label consists of a stack pointer and a PC
*/
TEXT gotolabel(SB), $0
MOVL label+0(FP), AX
MOVL 0(AX), SP /* restore sp */
MOVL 4(AX), AX /* put return pc on the stack */
MOVL AX, 0(SP)
MOVL $1, AX /* return 1 */
RET
TEXT setlabel(SB), $0
MOVL label+0(FP), AX
MOVL SP, 0(AX) /* store sp */
MOVL 0(SP), BX /* store return pc */
MOVL BX, 4(AX)
MOVL $0, AX /* return 0 */
RET
TEXT mwait(SB), $0
MOVL addr+0(FP), AX
MOVL (AX), CX
ORL CX, CX
JNZ _mwaitdone
XORL DX, DX
BYTE $0x0f; BYTE $0x01; BYTE $0xc8 /* MONITOR */
MOVL (AX), CX
ORL CX, CX
JNZ _mwaitdone
XORL AX, AX
BYTE $0x0f; BYTE $0x01; BYTE $0xc9 /* MWAIT */
_mwaitdone:
RET
/*
* Interrupt/exception handling.
* Each entry in the vector table calls either _strayintr or _strayintrx depending
* on whether an error code has been automatically pushed onto the stack
* (_strayintrx) or not, in which case a dummy entry must be pushed before retrieving
* the trap type from the vector table entry and placing it on the stack as part
* of the Ureg structure.
* Exceptions to this are the syscall vector and the page fault
* vector. Syscalls are dispatched seperately. Page faults
* have to take care of the extra cr2 parameter that xen places
* at the top of the stack.
* The size of each entry in the vector table (6 bytes) is known in trapinit().
*/
TEXT _strayintr(SB), $0
PUSHL AX /* save AX */
MOVL 4(SP), AX /* return PC from vectortable(SB) */
JMP intrcommon
TEXT _strayintrx(SB), $0
XCHGL AX, (SP) /* swap AX with vectortable CALL PC */
intrcommon:
PUSHL DS /* save DS */
PUSHL $(KDSEL)
POPL DS /* fix up DS */
MOVBLZX (AX), AX /* trap type -> AX */
XCHGL AX, 4(SP) /* exchange trap type with saved AX */
PUSHL ES /* save ES */
PUSHL $(KDSEL)
POPL ES /* fix up ES */
PUSHL FS /* save the rest of the Ureg struct */
PUSHL GS
PUSHAL
PUSHL SP /* Ureg* argument to trap */
CALL trap(SB)
TEXT forkret(SB), $0
POPL AX
POPAL
POPL GS
POPL FS
POPL ES
POPL DS
ADDL $8, SP /* pop error code and trap type */
IRETL
TEXT vectortable(SB), $0
CALL _strayintr(SB); BYTE $0x00 /* divide error */
CALL _strayintr(SB); BYTE $0x01 /* debug exception */
CALL _strayintr(SB); BYTE $0x02 /* NMI interrupt */
CALL _strayintr(SB); BYTE $0x03 /* breakpoint */
CALL _strayintr(SB); BYTE $0x04 /* overflow */
CALL _strayintr(SB); BYTE $0x05 /* bound */
CALL _strayintr(SB); BYTE $0x06 /* invalid opcode */
CALL _strayintr(SB); BYTE $0x07 /* no coprocessor available */
CALL _strayintrx(SB); BYTE $0x08 /* double fault */
CALL _strayintr(SB); BYTE $0x09 /* coprocessor segment overflow */
CALL _strayintrx(SB); BYTE $0x0A /* invalid TSS */
CALL _strayintrx(SB); BYTE $0x0B /* segment not available */
CALL _strayintrx(SB); BYTE $0x0C /* stack exception */
CALL _strayintrx(SB); BYTE $0x0D /* general protection error */
CALL _strayintrx(SB); BYTE $0x0E /* page fault */
CALL _strayintr(SB); BYTE $0x0F /* */
CALL _strayintr(SB); BYTE $0x10 /* coprocessor error */
CALL _strayintrx(SB); BYTE $0x11 /* alignment check */
CALL _strayintr(SB); BYTE $0x12 /* machine check */
CALL _strayintr(SB); BYTE $0x13
CALL _strayintr(SB); BYTE $0x14
CALL _strayintr(SB); BYTE $0x15
CALL _strayintr(SB); BYTE $0x16
CALL _strayintr(SB); BYTE $0x17
CALL _strayintr(SB); BYTE $0x18
CALL _strayintr(SB); BYTE $0x19
CALL _strayintr(SB); BYTE $0x1A
CALL _strayintr(SB); BYTE $0x1B
CALL _strayintr(SB); BYTE $0x1C
CALL _strayintr(SB); BYTE $0x1D
CALL _strayintr(SB); BYTE $0x1E
CALL _strayintr(SB); BYTE $0x1F
CALL _strayintr(SB); BYTE $0x20 /* VectorLAPIC */
CALL _strayintr(SB); BYTE $0x21
CALL _strayintr(SB); BYTE $0x22
CALL _strayintr(SB); BYTE $0x23
CALL _strayintr(SB); BYTE $0x24
CALL _strayintr(SB); BYTE $0x25
CALL _strayintr(SB); BYTE $0x26
CALL _strayintr(SB); BYTE $0x27
CALL _strayintr(SB); BYTE $0x28
CALL _strayintr(SB); BYTE $0x29
CALL _strayintr(SB); BYTE $0x2A
CALL _strayintr(SB); BYTE $0x2B
CALL _strayintr(SB); BYTE $0x2C
CALL _strayintr(SB); BYTE $0x2D
CALL _strayintr(SB); BYTE $0x2E
CALL _strayintr(SB); BYTE $0x2F
CALL _strayintr(SB); BYTE $0x30
CALL _strayintr(SB); BYTE $0x31
CALL _strayintr(SB); BYTE $0x32
CALL _strayintr(SB); BYTE $0x33
CALL _strayintr(SB); BYTE $0x34
CALL _strayintr(SB); BYTE $0x35
CALL _strayintr(SB); BYTE $0x36
CALL _strayintr(SB); BYTE $0x37
CALL _strayintr(SB); BYTE $0x38
CALL _strayintr(SB); BYTE $0x39
CALL _strayintr(SB); BYTE $0x3A
CALL _strayintr(SB); BYTE $0x3B
CALL _strayintr(SB); BYTE $0x3C
CALL _strayintr(SB); BYTE $0x3D
CALL _strayintr(SB); BYTE $0x3E
CALL _strayintr(SB); BYTE $0x3F
CALL _syscallintr(SB); BYTE $0x40 /* VectorSYSCALL */
CALL _strayintr(SB); BYTE $0x41
CALL _strayintr(SB); BYTE $0x42
CALL _strayintr(SB); BYTE $0x43
CALL _strayintr(SB); BYTE $0x44
CALL _strayintr(SB); BYTE $0x45
CALL _strayintr(SB); BYTE $0x46
CALL _strayintr(SB); BYTE $0x47
CALL _strayintr(SB); BYTE $0x48
CALL _strayintr(SB); BYTE $0x49
CALL _strayintr(SB); BYTE $0x4A
CALL _strayintr(SB); BYTE $0x4B
CALL _strayintr(SB); BYTE $0x4C
CALL _strayintr(SB); BYTE $0x4D
CALL _strayintr(SB); BYTE $0x4E
CALL _strayintr(SB); BYTE $0x4F
CALL _strayintr(SB); BYTE $0x50
CALL _strayintr(SB); BYTE $0x51
CALL _strayintr(SB); BYTE $0x52
CALL _strayintr(SB); BYTE $0x53
CALL _strayintr(SB); BYTE $0x54
CALL _strayintr(SB); BYTE $0x55
CALL _strayintr(SB); BYTE $0x56
CALL _strayintr(SB); BYTE $0x57
CALL _strayintr(SB); BYTE $0x58
CALL _strayintr(SB); BYTE $0x59
CALL _strayintr(SB); BYTE $0x5A
CALL _strayintr(SB); BYTE $0x5B
CALL _strayintr(SB); BYTE $0x5C
CALL _strayintr(SB); BYTE $0x5D
CALL _strayintr(SB); BYTE $0x5E
CALL _strayintr(SB); BYTE $0x5F
CALL _strayintr(SB); BYTE $0x60
CALL _strayintr(SB); BYTE $0x61
CALL _strayintr(SB); BYTE $0x62
CALL _strayintr(SB); BYTE $0x63
CALL _strayintr(SB); BYTE $0x64
CALL _strayintr(SB); BYTE $0x65
CALL _strayintr(SB); BYTE $0x66
CALL _strayintr(SB); BYTE $0x67
CALL _strayintr(SB); BYTE $0x68
CALL _strayintr(SB); BYTE $0x69
CALL _strayintr(SB); BYTE $0x6A
CALL _strayintr(SB); BYTE $0x6B
CALL _strayintr(SB); BYTE $0x6C
CALL _strayintr(SB); BYTE $0x6D
CALL _strayintr(SB); BYTE $0x6E
CALL _strayintr(SB); BYTE $0x6F
CALL _strayintr(SB); BYTE $0x70
CALL _strayintr(SB); BYTE $0x71
CALL _strayintr(SB); BYTE $0x72
CALL _strayintr(SB); BYTE $0x73
CALL _strayintr(SB); BYTE $0x74
CALL _strayintr(SB); BYTE $0x75
CALL _strayintr(SB); BYTE $0x76
CALL _strayintr(SB); BYTE $0x77
CALL _strayintr(SB); BYTE $0x78
CALL _strayintr(SB); BYTE $0x79
CALL _strayintr(SB); BYTE $0x7A
CALL _strayintr(SB); BYTE $0x7B
CALL _strayintr(SB); BYTE $0x7C
CALL _strayintr(SB); BYTE $0x7D
CALL _strayintr(SB); BYTE $0x7E
CALL _strayintr(SB); BYTE $0x7F
CALL _strayintr(SB); BYTE $0x80 /* Vector[A]PIC */
CALL _strayintr(SB); BYTE $0x81
CALL _strayintr(SB); BYTE $0x82
CALL _strayintr(SB); BYTE $0x83
CALL _strayintr(SB); BYTE $0x84
CALL _strayintr(SB); BYTE $0x85
CALL _strayintr(SB); BYTE $0x86
CALL _strayintr(SB); BYTE $0x87
CALL _strayintr(SB); BYTE $0x88
CALL _strayintr(SB); BYTE $0x89
CALL _strayintr(SB); BYTE $0x8A
CALL _strayintr(SB); BYTE $0x8B
CALL _strayintr(SB); BYTE $0x8C
CALL _strayintr(SB); BYTE $0x8D
CALL _strayintr(SB); BYTE $0x8E
CALL _strayintr(SB); BYTE $0x8F
CALL _strayintr(SB); BYTE $0x90
CALL _strayintr(SB); BYTE $0x91
CALL _strayintr(SB); BYTE $0x92
CALL _strayintr(SB); BYTE $0x93
CALL _strayintr(SB); BYTE $0x94
CALL _strayintr(SB); BYTE $0x95
CALL _strayintr(SB); BYTE $0x96
CALL _strayintr(SB); BYTE $0x97
CALL _strayintr(SB); BYTE $0x98
CALL _strayintr(SB); BYTE $0x99
CALL _strayintr(SB); BYTE $0x9A
CALL _strayintr(SB); BYTE $0x9B
CALL _strayintr(SB); BYTE $0x9C
CALL _strayintr(SB); BYTE $0x9D
CALL _strayintr(SB); BYTE $0x9E
CALL _strayintr(SB); BYTE $0x9F
CALL _strayintr(SB); BYTE $0xA0
CALL _strayintr(SB); BYTE $0xA1
CALL _strayintr(SB); BYTE $0xA2
CALL _strayintr(SB); BYTE $0xA3
CALL _strayintr(SB); BYTE $0xA4
CALL _strayintr(SB); BYTE $0xA5
CALL _strayintr(SB); BYTE $0xA6
CALL _strayintr(SB); BYTE $0xA7
CALL _strayintr(SB); BYTE $0xA8
CALL _strayintr(SB); BYTE $0xA9
CALL _strayintr(SB); BYTE $0xAA
CALL _strayintr(SB); BYTE $0xAB
CALL _strayintr(SB); BYTE $0xAC
CALL _strayintr(SB); BYTE $0xAD
CALL _strayintr(SB); BYTE $0xAE
CALL _strayintr(SB); BYTE $0xAF
CALL _strayintr(SB); BYTE $0xB0
CALL _strayintr(SB); BYTE $0xB1
CALL _strayintr(SB); BYTE $0xB2
CALL _strayintr(SB); BYTE $0xB3
CALL _strayintr(SB); BYTE $0xB4
CALL _strayintr(SB); BYTE $0xB5
CALL _strayintr(SB); BYTE $0xB6
CALL _strayintr(SB); BYTE $0xB7
CALL _strayintr(SB); BYTE $0xB8
CALL _strayintr(SB); BYTE $0xB9
CALL _strayintr(SB); BYTE $0xBA
CALL _strayintr(SB); BYTE $0xBB
CALL _strayintr(SB); BYTE $0xBC
CALL _strayintr(SB); BYTE $0xBD
CALL _strayintr(SB); BYTE $0xBE
CALL _strayintr(SB); BYTE $0xBF
CALL _strayintr(SB); BYTE $0xC0
CALL _strayintr(SB); BYTE $0xC1
CALL _strayintr(SB); BYTE $0xC2
CALL _strayintr(SB); BYTE $0xC3
CALL _strayintr(SB); BYTE $0xC4
CALL _strayintr(SB); BYTE $0xC5
CALL _strayintr(SB); BYTE $0xC6
CALL _strayintr(SB); BYTE $0xC7
CALL _strayintr(SB); BYTE $0xC8
CALL _strayintr(SB); BYTE $0xC9
CALL _strayintr(SB); BYTE $0xCA
CALL _strayintr(SB); BYTE $0xCB
CALL _strayintr(SB); BYTE $0xCC
CALL _strayintr(SB); BYTE $0xCD
CALL _strayintr(SB); BYTE $0xCE
CALL _strayintr(SB); BYTE $0xCF
CALL _strayintr(SB); BYTE $0xD0
CALL _strayintr(SB); BYTE $0xD1
CALL _strayintr(SB); BYTE $0xD2
CALL _strayintr(SB); BYTE $0xD3
CALL _strayintr(SB); BYTE $0xD4
CALL _strayintr(SB); BYTE $0xD5
CALL _strayintr(SB); BYTE $0xD6
CALL _strayintr(SB); BYTE $0xD7
CALL _strayintr(SB); BYTE $0xD8
CALL _strayintr(SB); BYTE $0xD9
CALL _strayintr(SB); BYTE $0xDA
CALL _strayintr(SB); BYTE $0xDB
CALL _strayintr(SB); BYTE $0xDC
CALL _strayintr(SB); BYTE $0xDD
CALL _strayintr(SB); BYTE $0xDE
CALL _strayintr(SB); BYTE $0xDF
CALL _strayintr(SB); BYTE $0xE0
CALL _strayintr(SB); BYTE $0xE1
CALL _strayintr(SB); BYTE $0xE2
CALL _strayintr(SB); BYTE $0xE3
CALL _strayintr(SB); BYTE $0xE4
CALL _strayintr(SB); BYTE $0xE5
CALL _strayintr(SB); BYTE $0xE6
CALL _strayintr(SB); BYTE $0xE7
CALL _strayintr(SB); BYTE $0xE8
CALL _strayintr(SB); BYTE $0xE9
CALL _strayintr(SB); BYTE $0xEA
CALL _strayintr(SB); BYTE $0xEB
CALL _strayintr(SB); BYTE $0xEC
CALL _strayintr(SB); BYTE $0xED
CALL _strayintr(SB); BYTE $0xEE
CALL _strayintr(SB); BYTE $0xEF
CALL _strayintr(SB); BYTE $0xF0
CALL _strayintr(SB); BYTE $0xF1
CALL _strayintr(SB); BYTE $0xF2
CALL _strayintr(SB); BYTE $0xF3
CALL _strayintr(SB); BYTE $0xF4
CALL _strayintr(SB); BYTE $0xF5
CALL _strayintr(SB); BYTE $0xF6
CALL _strayintr(SB); BYTE $0xF7
CALL _strayintr(SB); BYTE $0xF8
CALL _strayintr(SB); BYTE $0xF9
CALL _strayintr(SB); BYTE $0xFA
CALL _strayintr(SB); BYTE $0xFB
CALL _strayintr(SB); BYTE $0xFC
CALL _strayintr(SB); BYTE $0xFD
CALL _strayintr(SB); BYTE $0xFE
CALL _strayintr(SB); BYTE $0xFF

801
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#include "u.h"
#include "../port/lib.h"
#include "mem.h"
#include "dat.h"
#include "fns.h"
#include "io.h"
#include "ureg.h"
#include "init.h"
#include "pool.h"
#include "reboot.h"
#include <tos.h>
Mach *m;
#define BOOTARGS (xenstart->cmd_line)
#define BOOTARGSLEN (sizeof xenstart->cmd_line)
#define MAXCONF 64
enum {
/* space for syscall args, return PC, top-of-stack struct */
Ustkheadroom = sizeof(Sargs) + sizeof(uintptr) + sizeof(Tos),
};
char bootdisk[KNAMELEN];
Conf conf;
char *confname[MAXCONF];
char *confval[MAXCONF];
int nconf;
uchar *sp; /* user stack of init proc */
int idle_spin;
static void
options(void)
{
long i, n;
char *cp, *line[MAXCONF], *p, *q;
/*
* parse configuration args from dos file plan9.ini
*/
cp = BOOTARGS; /* where b.com leaves its config */
cp[BOOTARGSLEN-1] = 0;
/*
* Strip out '\r', change '\t' -> ' '.
*/
p = cp;
for(q = cp; *q; q++){
if(*q == '\r')
continue;
if(*q == '\t')
*q = ' ';
*p++ = *q;
}
*p = 0;
n = getfields(cp, line, MAXCONF, 1, "\n");
for(i = 0; i < n; i++){
if(*line[i] == '#')
continue;
cp = strchr(line[i], '=');
if(cp == nil)
continue;
*cp++ = '\0';
confname[nconf] = line[i];
confval[nconf] = cp;
nconf++;
}
}
void
main(void)
{
mach0init();
options();
quotefmtinstall();
xenconsinit();
//consdebug = rdb;
print("\nPlan 9 (%s)\n", xenstart->magic);
cpuidentify();
// meminit() is not for us
confinit();
archinit();
xinit();
trapinit();
printinit();
cpuidprint();
mmuinit();
if(arch->intrinit) /* launches other processors on an mp */
arch->intrinit();
timersinit();
mathinit();
kbdenable();
xengrantinit();
if(arch->clockenable)
arch->clockenable();
procinit0();
initseg();
links();
// conf.monitor = 1;
chandevreset();
pageinit();
swapinit();
userinit();
active.thunderbirdsarego = 1;
schedinit();
}
void
mach0init(void)
{
m = (Mach*)MACHADDR;
m->machno = 0;
conf.nmach = 1;
MACHP(0) = (Mach*)CPU0MACH;
m->pdb = (ulong*)xenstart->pt_base;
#ifdef NOT
m->gdt = (Segdesc*)CPU0GDT;
#endif
machinit();
active.machs = 1;
active.exiting = 0;
}
void
machinit(void)
{
int machno;
ulong *pdb;
Segdesc *gdt;
machno = m->machno;
pdb = m->pdb;
gdt = m->gdt;
memset(m, 0, sizeof(Mach));
m->machno = machno;
m->pdb = pdb;
m->gdt = gdt;
m->perf.period = 1;
/*
* For polled uart output at boot, need
* a default delay constant. 100000 should
* be enough for a while. Cpuidentify will
* calculate the real value later.
*/
m->loopconst = 100000;
m->cpumhz = 1000; // XXX!
HYPERVISOR_shared_info = (shared_info_t*)mmumapframe(XENSHARED, (xenstart->shared_info)>>PGSHIFT);
// XXX m->shared = &HYPERVISOR_shared_info->vcpu_data[m->machno];
}
void
init0(void)
{
int i;
char buf[2*KNAMELEN];
up->nerrlab = 0;
spllo();
/*
* These are o.k. because rootinit is null.
* Then early kproc's will have a root and dot.
*/
up->slash = namec("#/", Atodir, 0, 0);
pathclose(up->slash->path);
up->slash->path = newpath("/");
up->dot = cclone(up->slash);
chandevinit();
if(!waserror()){
snprint(buf, sizeof(buf), "%s %s", arch->id, conffile);
ksetenv("terminal", buf, 0);
ksetenv("cputype", "386", 0);
if(cpuserver)
ksetenv("service", "cpu", 0);
else
ksetenv("service", "terminal", 0);
ksetenv("readparts", "1", 0);
for(i = 0; i < nconf; i++){
if(confname[i][0] != '*')
ksetenv(confname[i], confval[i], 0);
ksetenv(confname[i], confval[i], 1);
}
poperror();
}
kproc("alarm", alarmkproc, 0);
touser(sp);
}
void
userinit(void)
{
Proc *p;
Segment *s;
KMap *k;
Page *pg;
p = newproc();
p->pgrp = newpgrp();
p->egrp = smalloc(sizeof(Egrp));
p->egrp->ref = 1;
p->fgrp = dupfgrp(nil);
p->rgrp = newrgrp();
p->procmode = 0640;
kstrdup(&eve, "");
kstrdup(&p->text, "*init*");
kstrdup(&p->user, eve);
p->fpstate = FPinit;
fpoff();
/*
* Kernel Stack
*
* N.B. make sure there's enough space for syscall to check
* for valid args and
* 4 bytes for gotolabel's return PC
*/
p->sched.pc = (ulong)init0;
p->sched.sp = (ulong)p->kstack+KSTACK-(sizeof(Sargs)+BY2WD);
/*
* User Stack
*/
s = newseg(SG_STACK, USTKTOP-USTKSIZE, USTKSIZE/BY2PG);
p->seg[SSEG] = s;
pg = newpage(1, 0, USTKTOP-BY2PG);
segpage(s, pg);
k = kmap(pg);
bootargs(VA(k));
kunmap(k);
/*
* Text
*/
s = newseg(SG_TEXT, UTZERO, 1);
s->flushme++;
p->seg[TSEG] = s;
pg = newpage(1, 0, UTZERO);
memset(pg->cachectl, PG_TXTFLUSH, sizeof(pg->cachectl));
segpage(s, pg);
k = kmap(s->map[0]->pages[0]);
memmove((ulong*)VA(k), initcode, sizeof initcode);
kunmap(k);
ready(p);
}
uchar *
pusharg(char *p)
{
int n;
n = strlen(p)+1;
sp -= n;
memmove(sp, p, n);
return sp;
}
void
bootargs(ulong base)
{
int i, ac;
uchar *av[32];
uchar **lsp;
sp = (uchar*)base + BY2PG - Ustkheadroom;
ac = 0;
av[ac++] = pusharg("/386/9dos");
av[ac++] = pusharg("-D");
/* 4 byte word align stack */
sp = (uchar*)((ulong)sp & ~3);
/* build argc, argv on stack */
sp -= (ac+1)*sizeof(sp);
lsp = (uchar**)sp;
for(i = 0; i < ac; i++)
*lsp++ = av[i] + ((USTKTOP - BY2PG) - base);
*lsp = 0;
sp += (USTKTOP - BY2PG) - base - sizeof(ulong);
}
char*
getconf(char *name)
{
int i;
for(i = 0; i < nconf; i++)
if(cistrcmp(confname[i], name) == 0)
return confval[i];
return 0;
}
static void
writeconf(void)
{
char *p, *q;
int n;
p = getconfenv();
if(waserror()) {
free(p);
nexterror();
}
/* convert to name=value\n format */
for(q=p; *q; q++) {
q += strlen(q);
*q = '=';
q += strlen(q);
*q = '\n';
}
n = q - p + 1;
if(n >= BOOTARGSLEN)
error("kernel configuration too large");
memmove(BOOTARGS, p, n);
poperror();
free(p);
}
void
confinit(void)
{
char *p;
int i, userpcnt;
ulong kpages;
for(i = 0; i < nconf; i++)
print("%s=%s\n", confname[i], confval[i]);
/*
* all ram above xentop is free, but must be mappable
* to virt addrs less than VIRT_START.
*/
kpages = PADDR(hypervisor_virt_start)>>PGSHIFT;
if(xenstart->nr_pages <= kpages)
kpages = xenstart->nr_pages;
else
print("Warning: Plan 9 / Xen limitation - "
"using only %lud of %lud available RAM pages\n",
kpages, xenstart->nr_pages);
xentop = PGROUND(PADDR(xentop));
conf.mem[0].npage = kpages - (xentop>>PGSHIFT);
conf.mem[0].base = xentop;
if(p = getconf("*kernelpercent"))
userpcnt = 100 - strtol(p, 0, 0);
else
userpcnt = 0;
conf.npage = 0;
for(i=0; i<nelem(conf.mem); i++)
conf.npage += conf.mem[i].npage;
conf.nproc = 100 + ((conf.npage*BY2PG)/MB)*5;
if(cpuserver)
conf.nproc *= 3;
if(conf.nproc > 2000)
conf.nproc = 2000;
conf.nimage = 200;
conf.nswap = conf.nproc*80;
conf.nswppo = 4096;
if(cpuserver) {
if(userpcnt < 10)
userpcnt = 70;
kpages = conf.npage - (conf.npage*userpcnt)/100;
/*
* Hack for the big boys. Only good while physmem < 4GB.
* Give the kernel fixed max + enough to allocate the
* page pool.
* This is an overestimate as conf.upages < conf.npages.
* The patch of nimage is a band-aid, scanning the whole
* page list in imagereclaim just takes too long.
*/
if(kpages > (64*MB + conf.npage*sizeof(Page))/BY2PG){
kpages = (64*MB + conf.npage*sizeof(Page))/BY2PG;
conf.nimage = 2000;
kpages += (conf.nproc*KSTACK)/BY2PG;
}
} else {
if(userpcnt < 10) {
if(conf.npage*BY2PG < 16*MB)
userpcnt = 40;
else
userpcnt = 60;
}
kpages = conf.npage - (conf.npage*userpcnt)/100;
/*
* Make sure terminals with low memory get at least
* 4MB on the first Image chunk allocation.
*/
if(conf.npage*BY2PG < 16*MB)
imagmem->minarena = 4*1024*1024;
}
/*
* can't go past the end of virtual memory
* (ulong)-KZERO is 2^32 - KZERO
*/
if(kpages > ((ulong)-KZERO)/BY2PG)
kpages = ((ulong)-KZERO)/BY2PG;
conf.upages = conf.npage - kpages;
conf.ialloc = (kpages/2)*BY2PG;
/*
* Guess how much is taken by the large permanent
* datastructures. Mntcache and Mntrpc are not accounted for
* (probably ~300KB).
*/
kpages *= BY2PG;
kpages -= conf.upages*sizeof(Page)
+ conf.nproc*sizeof(Proc)
+ conf.nimage*sizeof(Image)
+ conf.nswap
+ conf.nswppo*sizeof(Page);
mainmem->maxsize = kpages;
if(!cpuserver){
/*
* give terminals lots of image memory, too; the dynamic
* allocation will balance the load properly, hopefully.
* be careful with 32-bit overflow.
*/
imagmem->maxsize = kpages;
}
}
static char* mathmsg[] =
{
nil, /* handled below */
"denormalized operand",
"division by zero",
"numeric overflow",
"numeric underflow",
"precision loss",
};
static void
mathnote(void)
{
int i;
ulong status;
char *msg, note[ERRMAX];
status = up->fpsave.status;
/*
* Some attention should probably be paid here to the
* exception masks and error summary.
*/
msg = "unknown exception";
for(i = 1; i <= 5; i++){
if(!((1<<i) & status))
continue;
msg = mathmsg[i];
break;
}
if(status & 0x01){
if(status & 0x40){
if(status & 0x200)
msg = "stack overflow";
else
msg = "stack underflow";
}else
msg = "invalid operation";
}
snprint(note, sizeof note, "sys: fp: %s fppc=0x%lux status=0x%lux",
msg, up->fpsave.pc, status);
postnote(up, 1, note, NDebug);
}
/*
* math coprocessor error
*/
static void
matherror(Ureg *ur, void*)
{
/*
* a write cycle to port 0xF0 clears the interrupt latch attached
* to the error# line from the 387
*/
if(!(m->cpuiddx & 0x01))
outb(0xF0, 0xFF);
/*
* save floating point state to check out error
*/
fpenv(&up->fpsave);
mathnote();
if(ur->pc & KZERO)
panic("fp: status %ux fppc=0x%lux pc=0x%lux",
up->fpsave.status, up->fpsave.pc, ur->pc);
}
/*
* math coprocessor emulation fault
*/
static void
mathemu(Ureg *ureg, void*)
{
if(up->fpstate & FPillegal){
/* someone did floating point in a note handler */
postnote(up, 1, "sys: floating point in note handler", NDebug);
return;
}
switch(up->fpstate){
case FPinit:
fpinit();
up->fpstate = FPactive;
break;
case FPinactive:
/*
* Before restoring the state, check for any pending
* exceptions, there's no way to restore the state without
* generating an unmasked exception.
* More attention should probably be paid here to the
* exception masks and error summary.
*/
if((up->fpsave.status & ~up->fpsave.control) & 0x07F){
mathnote();
break;
}
fprestore(&up->fpsave);
up->fpstate = FPactive;
break;
case FPactive:
panic("math emu pid %ld %s pc 0x%lux",
up->pid, up->text, ureg->pc);
break;
}
}
/*
* math coprocessor segment overrun
*/
static void
mathover(Ureg*, void*)
{
pexit("math overrun", 0);
}
void
mathinit(void)
{
trapenable(VectorCERR, matherror, 0, "matherror");
//if(X86FAMILY(m->cpuidax) == 3)
// intrenable(IrqIRQ13, matherror, 0, BUSUNKNOWN, "matherror");
trapenable(VectorCNA, mathemu, 0, "mathemu");
trapenable(VectorCSO, mathover, 0, "mathover");
}
/*
* set up floating point for a new process
*/
void
procsetup(Proc*p)
{
p->fpstate = FPinit;
fpoff();
}
void
procfork(Proc *p)
{
int s;
p->kentry = up->kentry;
p->pcycles = -p->kentry;
/* inherit user descriptors */
memmove(p->gdt, up->gdt, sizeof(p->gdt));
/* copy local descriptor table */
if(up->ldt != nil && up->nldt > 0){
p->ldt = smalloc(sizeof(Segdesc) * up->nldt);
memmove(p->ldt, up->ldt, sizeof(Segdesc) * up->nldt);
p->nldt = up->nldt;
}
/* save floating point state */
s = splhi();
switch(up->fpstate & ~FPillegal){
case FPactive:
fpsave(&up->fpsave);
up->fpstate = FPinactive;
case FPinactive:
p->fpsave = up->fpsave;
p->fpstate = FPinactive;
}
splx(s);
}
void
procrestore(Proc *p)
{
uvlong t;
if(p->kp)
return;
cycles(&t);
p->pcycles -= t;
}
/*
* Save the mach dependent part of the process state.
*/
void
procsave(Proc *p)
{
uvlong t;
cycles(&t);
p->pcycles += t;
if(p->fpstate == FPactive){
if(p->state == Moribund)
fpclear();
else{
/*
* Fpsave() stores without handling pending
* unmasked exeptions. Postnote() can't be called
* here as sleep() already has up->rlock, so
* the handling of pending exceptions is delayed
* until the process runs again and generates an
* emulation fault to activate the FPU.
*/
fpsave(&p->fpsave);
}
p->fpstate = FPinactive;
}
/*
* While this processor is in the scheduler, the process could run
* on another processor and exit, returning the page tables to
* the free list where they could be reallocated and overwritten.
* When this processor eventually has to get an entry from the
* trashed page tables it will crash.
*
* If there's only one processor, this can't happen.
* You might think it would be a win not to do this in that case,
* especially on VMware, but it turns out not to matter.
*/
mmuflushtlb(0);
}
static void
shutdown(int ispanic)
{
int ms, once;
lock(&active);
if(ispanic)
active.ispanic = ispanic;
else if(m->machno == 0 && (active.machs & (1<<m->machno)) == 0)
active.ispanic = 0;
once = active.machs & (1<<m->machno);
active.machs &= ~(1<<m->machno);
active.exiting = 1;
unlock(&active);
if(once)
print("cpu%d: exiting\n", m->machno);
//spllo();
for(ms = 5*1000; ms > 0; ms -= TK2MS(2)){
delay(TK2MS(2));
if(active.machs == 0 && consactive() == 0)
break;
}
if(getconf("*debug"))
delay(5*60*1000);
if(active.ispanic){
if(!cpuserver)
for(;;)
halt();
delay(10000);
}else
delay(1000);
}
void
reboot(void *entry, void *code, ulong size)
{
void (*f)(ulong, ulong, ulong);
//ulong *pdb;
writeconf();
shutdown(0);
/*
* should be the only processor running now
*/
print("shutting down...\n");
delay(200);
splhi();
/* turn off buffered serial console */
serialoq = nil;
/* shutdown devices */
chandevshutdown();
/* reboot(0, ...) on Xen causes domU shutdown */
if(entry == 0)
HYPERVISOR_shutdown(0);
/*
* Modify the machine page table to directly map the low 4MB of memory
* This allows the reboot code to turn off the page mapping
*/
//pdb = m->pdb;
//pdb[PDX(0)] = pdb[PDX(KZERO)];
mmuflushtlb(0);
/* setup reboot trampoline function */
f = (void*)REBOOTADDR;
memmove(f, rebootcode, sizeof(rebootcode));
print("rebooting...\n");
/* off we go - never to return */
(*f)(PADDR(entry), PADDR(code), size);
}
void
exit(int ispanic)
{
shutdown(ispanic);
arch->reset();
}
int
cistrcmp(char *a, char *b)
{
int ac, bc;
for(;;){
ac = *a++;
bc = *b++;
if(ac >= 'A' && ac <= 'Z')
ac = 'a' + (ac - 'A');
if(bc >= 'A' && bc <= 'Z')
bc = 'a' + (bc - 'A');
ac -= bc;
if(ac)
return ac;
if(bc == 0)
break;
}
return 0;
}
int
cistrncmp(char *a, char *b, int n)
{
unsigned ac, bc;
while(n > 0){
ac = *a++;
bc = *b++;
n--;
if(ac >= 'A' && ac <= 'Z')
ac = 'a' + (ac - 'A');
if(bc >= 'A' && bc <= 'Z')
bc = 'a' + (bc - 'A');
ac -= bc;
if(ac)
return ac;
if(bc == 0)
break;
}
return 0;
}

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/*
* Memory and machine-specific definitions. Used in C and assembler.
*/
#define MIN(a, b) ((a) < (b)? (a): (b))
#define MAX(a, b) ((a) > (b)? (a): (b))
/*
* Sizes
*/
#define BI2BY 8 /* bits per byte */
#define BI2WD 32 /* bits per word */
#define BY2WD 4 /* bytes per word */
#define BY2V 8 /* bytes per double word */
#define BY2PG 4096 /* bytes per page */
#define WD2PG (BY2PG/BY2WD) /* words per page */
#define PGSHIFT 12 /* log(BY2PG) */
#define ROUND(s, sz) (((s)+((sz)-1))&~((sz)-1))
#define PGROUND(s) ROUND(s, BY2PG)
#define BLOCKALIGN 8
#define FPalign 16 /* required for FXSAVE */
#define MAXMACH 8 /* max # cpus system can run */
#define MAX_VIRT_CPUS MAXMACH
#define KSTACK 4096 /* Size of kernel stack */
/*
* Time
*/
#define HZ (100) /* clock frequency */
#define MS2HZ (1000/HZ) /* millisec per clock tick */
#define TK2SEC(t) ((t)/HZ) /* ticks to seconds */
/*
* Fundamental addresses
*/
#define REBOOTADDR 0x00001000 /* reboot code - physical address */
#define APBOOTSTRAP 0x80001000 /* AP bootstrap code */
#define MACHADDR 0x80002000 /* as seen by current processor */
#define CPU0MACH MACHADDR /* Mach for bootstrap processor */
#define XENCONSOLE 0x80003000 /* xen console ring */
#define XENSHARED 0x80004000 /* xen shared page */
#define XENBUS 0x80005000 /* xenbus aka xenstore ring */
#define XENGRANTTAB 0x80006000 /* grant table */
#define MACHSIZE BY2PG
/*
* Address spaces
*
* User is at 0-2GB
* Kernel is at 2GB-4GB
*/
#define UZERO 0 /* base of user address space */
#define UTZERO (UZERO+BY2PG) /* first address in user text */
#define UTROUND(t) ROUNDUP((t), BY2PG)
#define KZERO 0x80000000 /* base of kernel address space */
#define KTZERO 0x80010000 /* first address in kernel text */
#define USTKTOP (KZERO-BY2PG) /* byte just beyond user stack */
#define USTKSIZE (16*1024*1024) /* size of user stack */
#define TSTKTOP (USTKTOP-USTKSIZE) /* end of new stack in sysexec */
#define TSTKSIZ 100
/*
* known x86 segments (in GDT) and their selectors
*/
#define NULLSEG 0 /* null segment */
#define KDSEG 1 /* kernel data/stack */
#define KESEG 2 /* kernel executable */
#define UDSEG 3 /* user data/stack */
#define UESEG 4 /* user executable */
#define TSSSEG 5 /* task segment */
#define APMCSEG 6 /* APM code segment */
#define APMCSEG16 7 /* APM 16-bit code segment */
#define APMDSEG 8 /* APM data segment */
#define PROCSEG0 11 /* per process descriptor0 */
#define NPROCSEG 3 /* number of per process descriptors */
#define NGDT 13 /* number of GDT entries required */
/* #define APM40SEG 8 /* APM segment 0x40 */
#define SELGDT (0<<2) /* selector is in gdt */
#define SELLDT (1<<2) /* selector is in ldt */
#define SELECTOR(i, t, p) (((i)<<3) | (t) | (p))
#define NULLSEL SELECTOR(NULLSEG, SELGDT, 0)
/* these are replaced by XEN entries */
#ifdef NOPE // XXX investigate more
#define KDSEL SELECTOR(KDSEG, SELGDT, 0)
#define KESEL SELECTOR(KESEG, SELGDT, 0)
#define UESEL SELECTOR(UESEG, SELGDT, 3)
#define UDSEL SELECTOR(UDSEG, SELGDT, 3)
/* comment out to make sure unused ... */
#define TSSSEL SELECTOR(TSSSEG, SELGDT, 0)
#define APMCSEL SELECTOR(APMCSEG, SELGDT, 0)
#define APMCSEL16 SELECTOR(APMCSEG16, SELGDT, 0)
#define APMDSEL SELECTOR(APMDSEG, SELGDT, 0)
/* #define APM40SEL SELECTOR(APM40SEG, SELGDT, 0) */
#else
/* use the selectors that xen gives us */
#define KESEL FLAT_KERNEL_CS
#define KDSEL FLAT_KERNEL_DS
#define UESEL FLAT_USER_CS
#define UDSEL FLAT_USER_DS
#endif
/*
* fields in segment descriptors
*/
#define SEGDATA (0x10<<8) /* data/stack segment */
#define SEGEXEC (0x18<<8) /* executable segment */
#define SEGTSS (0x9<<8) /* TSS segment */
#define SEGCG (0x0C<<8) /* call gate */
#define SEGIG (0x0E<<8) /* interrupt gate */
#define SEGTG (0x0F<<8) /* trap gate */
#define SEGTYPE (0x1F<<8)
#define SEGP (1<<15) /* segment present */
#define SEGPL(x) ((x)<<13) /* priority level */
#define SEGB (1<<22) /* granularity 1==4k (for expand-down) */
#define SEGG (1<<23) /* granularity 1==4k (for other) */
#define SEGE (1<<10) /* expand down */
#define SEGW (1<<9) /* writable (for data/stack) */
#define SEGR (1<<9) /* readable (for code) */
#define SEGD (1<<22) /* default 1==32bit (for code) */
/*
* virtual MMU
*/
#define PTEMAPMEM (1024*1024)
#define PTEPERTAB (PTEMAPMEM/BY2PG)
#define SEGMAPSIZE 1984
#define SSEGMAPSIZE 16
#define PPN(x) ((x)&~(BY2PG-1))
#define PGOFF(x) ((x)&(BY2PG-1))
/*
* physical MMU
*/
#define PTEVALID (1<<0)
#define PTEWT (1<<3)
#define PTEUNCACHED (1<<4)
#define PTEWRITE (1<<1)
#define PTERONLY (0<<1)
#define PTEKERNEL (0<<2)
#define PTEUSER (1<<2)
#define PTESIZE (1<<7)
#define PTEGLOBAL (1<<8)
/*
* Macros for calculating offsets within the page directory base
* and page tables.
*/
#define PAX(va) (paemode? ((ulong)(va)>>29) & 0x6 : 0)
#define PDX(va) (paemode? (((ulong)(va))>>20) & 0x03FE : (((ulong)(va))>>22) & 0x03FF)
#define PTX(va) (paemode? (((ulong)(va))>>11) & 0x03FE : (((ulong)(va))>>12) & 0x03FF)
#define PDB(pdb,va) (paemode? KADDR(MAPPN((pdb)[((ulong)(va)>>29) & 0x6])) : pdb)
#define getpgcolor(a) 0

188
sys/src/9/xen/mkfile Normal file
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@ -0,0 +1,188 @@
CONF=xenpcf
CONFLIST=xenpcf
objtype=386
</$objtype/mkfile
p=9
KTZERO=0x80010000
KZERO=0x80000000
KPZERO=0x10000
PAE=yes
DEVS=`{rc ../port/mkdevlist $CONF}
PORT=\
alarm.$O\
alloc.$O\
allocb.$O\
auth.$O\
cache.$O\
chan.$O\
dev.$O\
edf.$O\
fault.$O\
page.$O\
parse.$O\
pgrp.$O\
portclock.$O\
print.$O\
proc.$O\
qio.$O\
qlock.$O\
rebootcmd.$O\
segment.$O\
swap.$O\
sysfile.$O\
sysproc.$O\
taslock.$O\
tod.$O\
xalloc.$O\
XEN=\
xengrant.$O\
xentimer.$O\
xensystem.$O\
SCHED=`{ls -p xen-public/sched*.h >[2]/dev/null}
ARCH=`{test -d xen-public/arch-x86 && echo arch-x86/xen-x86_32.h arch-x86/xen.h || echo arch-x86_32.h }
XENHEADERS=\
$ARCH\
xen.h\
event_channel.h\
grant_table.h\
memory.h\
physdev.h\
$SCHED\
io/ring.h\
io/blkif.h\
io/console.h\
io/netif.h\
io/xenbus.h\
io/xs_wire.h\
OBJ=\
l.$O\
plan9l.$O\
xen.$O\
main.$O\
mmu.$O\
random.$O\
rdb.$O\
trap.$O\
$CONF.root.$O\
$CONF.rootc.$O\
$DEVS\
$PORT\
$XEN\
LIB=\
/$objtype/lib/libmemlayer.a\
/$objtype/lib/libmemdraw.a\
/$objtype/lib/libdraw.a\
/$objtype/lib/libip.a\
/$objtype/lib/libsec.a\
/$objtype/lib/libmp.a\
/$objtype/lib/libc.a\
ETHER=`{echo devether.c ether*.c | sed 's/\.c/.'$O'/g'}
VGA=`{echo devvga.c screen.c vga*.c | sed 's/\.c/.'$O'/g'}
SDEV=`{echo devsd.c sd*.c | sed 's/\.c/.'$O'/g'}
PAE=`{echo $PAE | sed 's/yes/yes[extended-cr3]/'}
XENELF='LOADER=generic,XEN_VER=xen-3.0,ELF_PADDR_OFFSET=0,VIRT_BASE='$KZERO',VIRT_ENTRY='$KTZERO',PAE='$PAE
#$p$CONF: $CONF.c $OBJ $LIB xenbin
# $CC $CFLAGS '-DKERNDATE='`{date -n} $CONF.c
# $LD -o $target.tmp -T$KTZERO -l $OBJ $CONF.$O $LIB
# ./xenbin <$target.tmp >$target
# rm $target.tmp
# size $target
$p$CONF: $CONF.c $OBJ $LIB xenelf
$CC $CFLAGS '-DKERNDATE='`{date -n} $CONF.c
$LD -o $target.elf -H5 -T$KTZERO -P$KPZERO -l $OBJ $CONF.$O $LIB
./xenelf $target.elf $target __xen_guest ''$XENELF''
size $target
$p$CONF.gz: $p$CONF
#strip -o /fd/1 $p$CONF | gzip -9 > $p$CONF.gz
gzip -9 $p$CONF > $p$CONF.gz
install:V: $p$CONF $p$CONF.gz
cp $p$CONF $p$CONF.gz /$objtype/
# import lookout / /n/lookout && cp $p$CONF $p$CONF.gz /n/lookout/$objtype/
# copies generated by the rule below
PCHEADERS=uncached.h etherif.h ethermii.h mp.h io.h
REPCH=`{echo $PCHEADERS | sed 's/\.h//g; s/ /|/g'}
^($REPCH)\.h:R: '../pc/\1.h'
cp $prereq .
REPCC=`{../port/mkfilelist ../pc}
^($REPCC)\.$O:R: '../pc/\1.c'
$CC $CFLAGS -I. -. ../pc/$stem1.c
<../boot/bootmkfile
<../port/portmkfile
<|../port/mkbootrules $CONF
ptclbsum386.$O: ../pc/ptclbsum386.s
$AS $AFLAGS ../pc/ptclbsum386.s
# we inherited these.. revisit.
$ETHER: etherif.h ../port/netif.h
$SDEV: ../port/sd.h
main.$O: init.h reboot.h
trap.$O: /sys/include/tos.h
%.$O: /$objtype/include/u.h ../port/lib.h mem.h dat.h fns.h io.h ../port/error.h ../port/portdat.h ../port/portfns.h xendat.h xendefs.h
xendefs.h: xendat.h
grep '^#define[ ]+FLAT_' xendat.h >$target
xendat.h:
{ echo '#define __i386__ __i386__'; \
echo '#define __XEN_INTERFACE_VERSION__ 0x00030201'; \
echo '#define XEN_GUEST_HANDLE_00030205(type) type *'; \
cat xen-public/^($XENHEADERS) } | \
./cppx > $target
init.h: ../port/initcode.c ../pc/init9.c
$CC ../port/initcode.c
$CC ../pc/init9.c
$LD -l -R1 -o init.out init9.$O initcode.$O /386/lib/libc.a
{echo 'uchar initcode[]={'
strip -o /fd/1 init.out | xd -1x |
sed -e 's/^[0-9a-f]+ //' -e 's/ ([0-9a-f][0-9a-f])/0x\1,/g'
echo '};'} > init.h
reboot.h: ../pc/rebootcode.s
$AS ../pc/rebootcode.s
$LD -l -s -T0x1000 -R4 -o reboot.out rebootcode.$O
{echo 'uchar rebootcode[]={'
xd -1x reboot.out |
sed -e '1,2d' -e 's/^[0-9a-f]+ //' -e 's/ ([0-9a-f][0-9a-f])/0x\1,/g'
echo '};'} > reboot.h
acid:V:
$CC -a -w main.c>acid
dpart: dpart.$O
$LD -o dpart dpart.$O
xenstore: xenstore.$O
$LD -o xenstore xenstore.$O
# XXX this is wrong if we're cross-compiling
xenbin: xenbin.$O
$LD -o xenbin xenbin.$O
xenelf: xenelf.$O
$LD -o xenelf xenelf.$O
%.clean:V:
rm -f $stem.c [9bz]$stem [9bz]$stem.gz 9$stem.elf boot$stem.* reboot.h init.h xendat.h xendefs.h $PCHEADERS dpart xenbin xenelf xenstore

595
sys/src/9/xen/mmu.c Normal file
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#include "u.h"
#include "../port/lib.h"
#include "mem.h"
#include "dat.h"
#include "fns.h"
#include "io.h"
int paemode;
uvlong *xenpdpt; /* this needs to go in Mach for multiprocessor guest */
#define LOG(a)
#define PUTMMULOG(a)
#define MFN(pa) (patomfn[(pa)>>PGSHIFT])
#define MAPPN(x) (paemode? matopfn[*(uvlong*)(&x)>>PGSHIFT]<<PGSHIFT : matopfn[(x)>>PGSHIFT]<<PGSHIFT)
#define DATASEGM(p) { 0xFFFF, SEGG|SEGB|(0xF<<16)|SEGP|SEGPL(p)|SEGDATA|SEGW }
#define EXECSEGM(p) { 0xFFFF, SEGG|SEGD|(0xF<<16)|SEGP|SEGPL(p)|SEGEXEC|SEGR }
#define TSSSEGM(b,p) { ((b)<<16)|sizeof(Tss),\
((b)&0xFF000000)|(((b)>>16)&0xFF)|SEGTSS|SEGPL(p)|SEGP }
Segdesc gdt[NGDT] =
{
[NULLSEG] { 0, 0}, /* null descriptor */
[KDSEG] DATASEGM(0), /* kernel data/stack */
[KESEG] EXECSEGM(0), /* kernel code */
[UDSEG] DATASEGM(3), /* user data/stack */
[UESEG] EXECSEGM(3), /* user code */
[TSSSEG] TSSSEGM(0,0), /* tss segment */
};
/* note: pdb must already be pinned */
static void
taskswitch(Page *pdb, ulong stack)
{
Tss *tss;
tss = m->tss;
tss->ss0 = KDSEL;
tss->esp0 = stack;
tss->ss1 = KDSEL;
tss->esp1 = stack;
tss->ss2 = KDSEL;
tss->esp2 = stack;
//tss->cr3 = pdb;
HYPERVISOR_stack_switch(KDSEL, stack);
mmuflushtlb(pdb);
}
void
mmuflushtlb(Page *pdb)
{
int s, i;
if(!paemode){
if(pdb)
xenptswitch(pdb->pa);
else
xenptswitch(PADDR(m->pdb));
}else{
if(pdb){
s = splhi();
for(i = 0; i < 3; i++){
xenupdate((ulong*)&xenpdpt[i], pdb->pa | PTEVALID);
pdb = pdb->next;
}
splx(s);
}else{
s = splhi();
for(i = 0; i < 3; i++)
xenupdatema((ulong*)&xenpdpt[i], ((uvlong*)m->pdb)[i]);
splx(s);
}
xentlbflush();
}
}
/*
* On processors that support it, we set the PTEGLOBAL bit in
* page table and page directory entries that map kernel memory.
* Doing this tells the processor not to bother flushing them
* from the TLB when doing the TLB flush associated with a
* context switch (write to CR3). Since kernel memory mappings
* are never removed, this is safe. (If we ever remove kernel memory
* mappings, we can do a full flush by turning off the PGE bit in CR4,
* writing to CR3, and then turning the PGE bit back on.)
*
* See also mmukmap below.
*
* Processor support for the PTEGLOBAL bit is enabled in devarch.c.
*/
static void
memglobal(void)
{
int i, j;
ulong *pde, *pte;
/* only need to do this once, on bootstrap processor */
if(m->machno != 0)
return;
if(!m->havepge)
return;
pde = m->pdb;
for(i=512; i<1024; i++){ /* 512: start at entry for virtual 0x80000000 */
if(pde[i] & PTEVALID){
pde[i] |= PTEGLOBAL;
if(!(pde[i] & PTESIZE)){
pte = KADDR(pde[i]&~(BY2PG-1));
for(j=0; j<1024; j++)
if(pte[j] & PTEVALID)
pte[j] |= PTEGLOBAL;
}
}
}
}
ulong
mmumapframe(ulong va, ulong mfn)
{
ulong *pte, pdbx;
uvlong ma;
/*
* map machine frame number to a virtual address.
* When called the pagedir and page table exist, we just
* need to fill in a page table entry.
*/
ma = ((uvlong)mfn<<PGSHIFT) | PTEVALID|PTEWRITE;
pdbx = PDX(va);
pte = KADDR(MAPPN(PDB(m->pdb,va)[pdbx]));
xenupdatema(&pte[PTX(va)], ma);
return va;
}
void
mmumapcpu0(void)
{
ulong *pdb, *pte, va, pa, pdbx;
if(strstr(xenstart->magic, "x86_32p"))
paemode = 1;
hypervisor_virt_start = paemode ? 0xF5800000 : 0xFC000000;
patomfn = (ulong*)xenstart->mfn_list;
matopfn = (ulong*)hypervisor_virt_start;
/* Xen bug ? can't touch top entry in PDPT */
if(paemode)
hypervisor_virt_start = 0xC0000000;
/*
* map CPU0MACH at MACHADDR.
* When called the pagedir and page table exist, we just
* need to fill in a page table entry.
*/
pdb = (ulong*)xenstart->pt_base;
va = MACHADDR;
pa = PADDR(CPU0MACH) | PTEVALID|PTEWRITE;
pdbx = PDX(va);
pdb = PDB(pdb, va);
pte = KADDR(MAPPN(pdb[pdbx]));
xenupdate(&pte[PTX(va)], pa);
}
void
mmuinit(void)
{
//XXX ulong x;
//XXX ushort ptr[3];
ulong *pte, npgs, pa;
extern int rtsr(void);
if(paemode){
int i;
xenpdpt = (uvlong*)m->pdb;
m->pdb = xspanalloc(32, 32, 0);
/* clear "reserved" bits in initial page directory pointers -- Xen bug? */
for(i = 0; i < 4; i++)
((uvlong*)m->pdb)[i] = xenpdpt[i] & ~0x1E6LL;
}
/*
* So far only memory up to xentop is mapped, map the rest.
* We cant use large pages because our contiguous PA space
* is not necessarily contiguous in MA.
*/
npgs = conf.mem[0].npage;
for(pa=conf.mem[0].base; npgs; npgs--, pa+=BY2PG) {
pte = mmuwalk(m->pdb, (ulong)KADDR(pa), 2, 1);
if(!pte)
panic("mmuinit");
xenupdate(pte, pa|PTEVALID|PTEWRITE);
}
memglobal();
m->tss = malloc(sizeof(Tss));
memset(m->tss, 0, sizeof(Tss));
m->tss->iomap = 0xDFFF<<16;
/*
* We used to keep the GDT in the Mach structure, but it
* turns out that that slows down access to the rest of the
* page. Since the Mach structure is accessed quite often,
* it pays off anywhere from a factor of 1.25 to 2 on real
* hardware to separate them (the AMDs are more sensitive
* than Intels in this regard). Under VMware it pays off
* a factor of about 10 to 100.
*/
#ifdef we_dont_set_gdt_or_lidt
memmove(m->gdt, gdt, sizeof gdt);
x = (ulong)m->tss;
m->gdt[TSSSEG].d0 = (x<<16)|sizeof(Tss);
m->gdt[TSSSEG].d1 = (x&0xFF000000)|((x>>16)&0xFF)|SEGTSS|SEGPL(0)|SEGP;
ptr[0] = sizeof(gdt)-1;
x = (ulong)m->gdt;
ptr[1] = x & 0xFFFF;
ptr[2] = (x>>16) & 0xFFFF;
lgdt(ptr);
ptr[0] = sizeof(Segdesc)*256-1;
x = IDTADDR;
ptr[1] = x & 0xFFFF;
ptr[2] = (x>>16) & 0xFFFF;
lidt(ptr);
#endif
#ifdef we_may_eventually_want_this
/* make kernel text unwritable */
for(x = KTZERO; x < (ulong)etext; x += BY2PG){
p = mmuwalk(m->pdb, x, 2, 0);
if(p == nil)
panic("mmuinit");
*p &= ~PTEWRITE;
}
#endif
taskswitch(0, (ulong)m + BY2PG);
#ifdef we_dont_do_this
ltr(TSSSEL);
#endif
}
void
flushmmu(void)
{
int s;
s = splhi();
up->newtlb = 1;
mmuswitch(up);
splx(s);
}
static ulong*
mmupdb(Page *pg, ulong va)
{
int i;
for(i = PAX(va); i > 0; i -= 2)
pg = pg->next;
return (ulong*)pg->va;
}
/* this can be called with an active pdb, so use Xen calls to zero it out.
*/
static void
mmuptefree(Proc* proc)
{
ulong *pdb, va;
Page **last, *page;
if(proc->mmupdb && proc->mmuused){
last = &proc->mmuused;
for(page = *last; page; page = page->next){
/* this is no longer a pte page so make it readwrite */
va = page->daddr;
pdb = mmupdb(proc->mmupdb, va);
xenupdatema(&pdb[PDX(va)], 0);
xenptunpin(page->va);
last = &page->next;
}
*last = proc->mmufree;
proc->mmufree = proc->mmuused;
proc->mmuused = 0;
}
}
void
mmuswitch(Proc* proc)
{
//ulong *pdb;
if(proc->newtlb){
mmuptefree(proc);
proc->newtlb = 0;
}
if(proc->mmupdb){
//XXX doesn't work for some reason, but it's not needed for uniprocessor
//pdb = (ulong*)proc->mmupdb->va;
//xenupdate(&pdb[PDX(MACHADDR)], m->pdb[PDX(MACHADDR)]);
taskswitch(proc->mmupdb, (ulong)(proc->kstack+KSTACK));
}
else
taskswitch(0, (ulong)(proc->kstack+KSTACK));
}
void
mmurelease(Proc* proc)
{
Page *page, *next;
/*
* Release any pages allocated for a page directory base or page-tables
* for this process:
* switch to the prototype pdb for this processor (m->pdb);
* call mmuptefree() to place all pages used for page-tables (proc->mmuused)
* onto the process' free list (proc->mmufree). This has the side-effect of
* cleaning any user entries in the pdb (proc->mmupdb);
* if there's a pdb put it in the cache of pre-initialised pdb's
* for this processor (m->pdbpool) or on the process' free list;
* finally, place any pages freed back into the free pool (palloc).
* This routine is only called from sched() with palloc locked.
*/
taskswitch(0, (ulong)m + BY2PG);
mmuptefree(proc);
if((page = proc->mmupdb) != 0){
proc->mmupdb = 0;
while(page){
next = page->next;
/* its not a page table anymore, mark it rw */
xenptunpin(page->va);
if(paemode || m->pdbcnt > 10){
page->next = proc->mmufree;
proc->mmufree = page;
}
else{
page->next = m->pdbpool;
m->pdbpool = page;
m->pdbcnt++;
}
page = next;
}
}
for(page = proc->mmufree; page; page = next){
next = page->next;
if(--page->ref)
panic("mmurelease: page->ref %d\n", page->ref);
pagechainhead(page);
}
if(proc->mmufree && palloc.r.p)
wakeup(&palloc.r);
proc->mmufree = 0;
}
static Page*
mmupdballoc(ulong va, void *mpdb)
{
int s;
Page *page;
Page *badpages, *pg;
s = splhi();
/*
* All page tables must be read-only. We will mark them
* readwrite later when we free them and they are no
* longer used as page tables.
*/
if(m->pdbpool == 0){
spllo();
badpages = 0;
for (;;) {
page = newpage(0, 0, 0);
page->va = VA(kmap(page));
if(mpdb)
memmove((void*)page->va, mpdb, BY2PG);
else
memset((void*)page->va, 0, BY2PG);
if (xenpgdpin(page->va))
break;
/*
* XXX Plan 9 is a bit lax about putting pages on the free list when they are
* still mapped (r/w) by some process's page table. From Plan 9's point
* of view this is safe because the any such process will have up->newtlb set,
* so the mapping will be cleared before the process is dispatched. But the Xen
* hypervisor has no way of knowing this, so it refuses to pin the page for use
* as a pagetable.
*/
if(0) print("bad pgdpin %lux va %lux copy %lux %s\n", MFN(PADDR(page->va)), va, (ulong)mpdb, up? up->text: "");
page->next = badpages;
badpages = page;
}
while (badpages != 0) {
pg = badpages;
badpages = badpages->next;
putpage(pg);
}
}
else{
page = m->pdbpool;
m->pdbpool = page->next;
m->pdbcnt--;
if (!xenpgdpin(page->va))
panic("xenpgdpin");
}
splx(s);
page->next = 0;
return page;
}
void
checkmmu(ulong va, ulong pa)
{
ulong *pdb, *pte;
int pdbx;
if(up->mmupdb == 0)
return;
pdb = mmupdb(up->mmupdb, va);
pdbx = PDX(va);
if(MAPPN(pdb[pdbx]) == 0){
/* okay to be empty - will fault and get filled */
return;
}
pte = KADDR(MAPPN(pdb[pdbx]));
if(MAPPN(pte[PTX(va)]) != pa){
if(!paemode)
print("%ld %s: va=0x%08lux pa=0x%08lux pte=0x%08lux (0x%08lux)\n",
up->pid, up->text,
va, pa, pte[PTX(va)], MAPPN(pte[PTX(va)]));
else
print("%ld %s: va=0x%08lux pa=0x%08lux pte=0x%16llux (0x%08lux)\n",
up->pid, up->text,
va, pa, *(uvlong*)&pte[PTX(va)], MAPPN(pte[PTX(va)]));
}
}
void
putmmu(ulong va, ulong pa, Page*)
{
int pdbx;
Page *page;
Page *badpages, *pg;
ulong *pdb, *pte;
int i, s;
PUTMMULOG(dprint("putmmu va %lux pa %lux\n", va, pa);)
if(up->mmupdb == 0){
if(!paemode)
up->mmupdb = mmupdballoc(va, m->pdb);
else {
page = 0;
for(i = 4; i >= 0; i -= 2){
if(m->pdb[i])
pg = mmupdballoc(va, KADDR(MAPPN(m->pdb[i])));
else
pg = mmupdballoc(va, 0);
pg->next = page;
page = pg;
}
up->mmupdb = page;
}
}
pdb = mmupdb(up->mmupdb, va);
pdbx = PDX(va);
if(PPN(pdb[pdbx]) == 0){
PUTMMULOG(dprint("new pt page for index %d pdb %lux\n", pdbx, (ulong)pdb);)
/* mark page as readonly before using as a page table */
if(up->mmufree == 0){
badpages = 0;
for (;;) {
page = newpage(1, 0, 0);
page->va = VA(kmap(page));
if (xenptpin(page->va))
break;
if(0) print("bad pin %lux va %lux %s\n", MFN(PADDR(page->va)), va, up->text);
page->next = badpages;
badpages = page;
}
while (badpages != 0) {
pg = badpages;
badpages = badpages->next;
putpage(pg);
}
}
else {
page = up->mmufree;
up->mmufree = page->next;
memset((void*)page->va, 0, BY2PG);
if (!xenptpin(page->va))
panic("xenptpin");
}
xenupdate(&pdb[pdbx], page->pa|PTEVALID|PTEUSER|PTEWRITE);
page->daddr = va;
page->next = up->mmuused;
up->mmuused = page;
}
pte = KADDR(MAPPN(pdb[pdbx]));
PUTMMULOG(dprint("pte %lux index %lud old %lux new %lux mfn %lux\n", (ulong)pte, PTX(va), pte[PTX(va)], pa|PTEUSER, MFN(pa));)
xenupdate(&pte[PTX(va)], pa|PTEUSER);
s = splhi();
//XXX doesn't work for some reason, but it's not needed for uniprocessor
//xenupdate(&pdb[PDX(MACHADDR)], m->pdb[PDX(MACHADDR)]);
mmuflushtlb(up->mmupdb);
splx(s);
}
ulong*
mmuwalk(ulong* pdb, ulong va, int level, int create)
{
ulong pa, va2, *table;
/*
* Walk the page-table pointed to by pdb and return a pointer
* to the entry for virtual address va at the requested level.
* If the entry is invalid and create isn't requested then bail
* out early. Otherwise, for the 2nd level walk, allocate a new
* page-table page and register it in the 1st level.
*/
if(paemode){
pdb = &pdb[PAX(va)];
if(!(*pdb & PTEVALID)){
if(create == 0)
return 0;
panic("mmuwalk: missing pgdir ptr for va=%lux\n", va);
}
pdb = KADDR(MAPPN(*pdb));
}
table = &pdb[PDX(va)];
if(!(*table & PTEVALID) && create == 0)
return 0;
switch(level){
default:
return 0;
case 1:
return table;
case 2:
if(*table & PTESIZE)
panic("mmuwalk2: va %luX entry %luX\n", va, *table);
if(!(*table & PTEVALID)){
va2 = (ulong)xspanalloc(BY2PG, BY2PG, 0);
pa = PADDR(va2);
xenptpin(va2);
xenupdate(table, pa|PTEWRITE|PTEVALID);
}
table = KADDR(MAPPN(*table));
return &table[PTX(va)];
}
}
int
mmukmapsync(ulong va)
{
USED(va);
return 0;
}
/*
* More debugging.
*/
void
countpagerefs(ulong *ref, int print)
{
USED(ref);
USED(print);
}
/*
* Return the number of bytes that can be accessed via KADDR(pa).
* If pa is not a valid argument to KADDR, return 0.
*/
ulong
cankaddr(ulong pa)
{
if(pa >= -KZERO)
return 0;
return -KZERO - pa;
}

53
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#include "xendefs.h"
#include "mem.h"
/*
* This must match io.h.
*/
#define VectorSYSCALL 0x40
/*
* Used to get to the first process:
* set up an interrupt return frame and IRET to user level.
*/
TEXT touser(SB), $0
PUSHL $(UDSEL) /* old ss */
MOVL sp+0(FP), AX /* old sp */
PUSHL AX
MOVL $0x200, AX /* interrupt enable flag */
PUSHL AX /* old flags */
PUSHL $(UESEL) /* old cs */
PUSHL $(UTZERO+32) /* old pc */
MOVL $(UDSEL), AX
MOVW AX, DS
MOVW AX, ES
MOVW AX, GS
MOVW AX, FS
IRETL
/*
* This is merely _strayintr from l.s optimised to vector
* to syscall() without going through trap().
*/
TEXT _syscallintr(SB), $0
PUSHL $VectorSYSCALL /* trap type */
PUSHL DS
PUSHL ES
PUSHL FS
PUSHL GS
PUSHAL
MOVL $(KDSEL), AX
MOVW AX, DS
MOVW AX, ES
PUSHL SP
CALL syscall(SB)
POPL AX
POPAL
POPL GS
POPL FS
POPL ES
POPL DS
ADDL $8, SP /* pop error code and trap type */
IRETL

186
sys/src/9/xen/screen.h Normal file
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typedef struct Cursor Cursor;
typedef struct Cursorinfo Cursorinfo;
struct Cursorinfo {
Cursor;
Lock;
};
/* devmouse.c */
extern void mousetrack(int, int, int, int);
extern void absmousetrack(int, int, int, int);
extern Point mousexy(void);
extern void mouseaccelerate(int);
extern int m3mouseputc(Queue*, int);
extern int m5mouseputc(Queue*, int);
extern int mouseputc(Queue*, int);
extern Cursorinfo cursor;
extern Cursor arrow;
/*
* Generic VGA registers.
*/
enum {
MiscW = 0x03C2, /* Miscellaneous Output (W) */
MiscR = 0x03CC, /* Miscellaneous Output (R) */
Status0 = 0x03C2, /* Input status 0 (R) */
Status1 = 0x03DA, /* Input Status 1 (R) */
FeatureR = 0x03CA, /* Feature Control (R) */
FeatureW = 0x03DA, /* Feature Control (W) */
Seqx = 0x03C4, /* Sequencer Index, Data at Seqx+1 */
Crtx = 0x03D4, /* CRT Controller Index, Data at Crtx+1 */
Grx = 0x03CE, /* Graphics Controller Index, Data at Grx+1 */
Attrx = 0x03C0, /* Attribute Controller Index and Data */
PaddrW = 0x03C8, /* Palette Address Register, write */
Pdata = 0x03C9, /* Palette Data Register */
Pixmask = 0x03C6, /* Pixel Mask Register */
PaddrR = 0x03C7, /* Palette Address Register, read */
Pstatus = 0x03C7, /* DAC Status (RO) */
Pcolours = 256, /* Palette */
Pred = 0,
Pgreen = 1,
Pblue = 2,
Pblack = 0x00,
Pwhite = 0xFF,
};
#define VGAMEM() 0xA0000
#define vgai(port) inb(port)
#define vgao(port, data) outb(port, data)
extern int vgaxi(long, uchar);
extern int vgaxo(long, uchar, uchar);
/*
*/
typedef struct VGAdev VGAdev;
typedef struct VGAcur VGAcur;
typedef struct VGAscr VGAscr;
struct VGAdev {
char* name;
void (*enable)(VGAscr*);
void (*disable)(VGAscr*);
void (*page)(VGAscr*, int);
void (*linear)(VGAscr*, int, int);
void (*drawinit)(VGAscr*);
int (*fill)(VGAscr*, Rectangle, ulong);
void (*ovlctl)(VGAscr*, Chan*, void*, int);
int (*ovlwrite)(VGAscr*, void*, int, vlong);
void (*flush)(VGAscr*, Rectangle);
};
struct VGAcur {
char* name;
void (*enable)(VGAscr*);
void (*disable)(VGAscr*);
void (*load)(VGAscr*, Cursor*);
int (*move)(VGAscr*, Point);
int doespanning;
};
/*
*/
struct VGAscr {
Lock devlock;
VGAdev* dev;
Pcidev* pci;
VGAcur* cur;
ulong storage;
Cursor;
int useflush;
ulong paddr; /* frame buffer */
void* vaddr;
int apsize;
ulong io; /* device specific registers */
ulong *mmio;
ulong colormap[Pcolours][3];
int palettedepth;
Memimage* gscreen;
Memdata* gscreendata;
Memsubfont* memdefont;
int (*fill)(VGAscr*, Rectangle, ulong);
int (*scroll)(VGAscr*, Rectangle, Rectangle);
void (*blank)(VGAscr*, int);
ulong id; /* internal identifier for driver use */
int isblank;
int overlayinit;
int softscreen;
};
extern VGAscr vgascreen[];
enum {
Backgnd = 0, /* black */
};
/* mouse.c */
extern void mousectl(Cmdbuf*);
extern void mouseresize(void);
extern void mouseredraw(void);
/* screen.c */
extern int hwaccel; /* use hw acceleration; default on */
extern int hwblank; /* use hw blanking; default on */
extern int panning; /* use virtual screen panning; default off */
extern void addvgaseg(char*, ulong, ulong);
extern uchar* attachscreen(Rectangle*, ulong*, int*, int*, int*);
extern void flushmemscreen(Rectangle);
extern void cursoron(void);
extern void cursoroff(void);
extern void setcursor(Cursor*);
extern int screensize(int, int, int, ulong);
extern int screenaperture(int, int);
extern Rectangle physgscreenr; /* actual monitor size */
extern void blankscreen(int);
extern VGAcur swcursor;
extern void swcursorinit(void);
extern void swcursorhide(void);
extern void swcursoravoid(Rectangle);
extern void swcursorunhide(void);
/* devdraw.c */
extern void deletescreenimage(void);
extern void resetscreenimage(void);
extern int drawhasclients(void);
extern ulong blanktime;
extern void setscreenimageclipr(Rectangle);
extern void drawflush(void);
extern int drawidletime(void);
extern QLock drawlock;
/* vga.c */
extern void vgascreenwin(VGAscr*);
extern void vgaimageinit(ulong);
extern void vgalinearpci(VGAscr*);
extern void vgalinearaddr(VGAscr*, ulong, int);
extern void drawblankscreen(int);
extern void vgablank(VGAscr*, int);
extern Lock vgascreenlock;
#define ishwimage(i) (vgascreen[0].gscreendata && (i)->data->bdata == vgascreen[0].gscreendata->bdata)
/* swcursor.c */
void swcursorhide(void);
void swcursoravoid(Rectangle);
void swcursordraw(Point);
void swcursorload(Cursor *);
void swcursorinit(void);

356
sys/src/9/xen/sdxen.c Normal file
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/*
* Xen block storage device frontend
*
* The present implementation follows the principle of
* "what's the simplest thing that could possibly work?".
* We can think about performance later.
* We can think about dynamically attaching and removing devices later.
*/
#include "u.h"
#include "../port/lib.h"
#include "mem.h"
#include "dat.h"
#include "fns.h"
#include "io.h"
#include "ureg.h"
#include "../port/error.h"
#include "../port/sd.h"
#define LOG(a)
/*
* conversions to machine page numbers, pages and addresses
*/
#define MFN(pa) (patomfn[(pa)>>PGSHIFT])
#define MFNPG(pa) (MFN(pa)<<PGSHIFT)
#define PA2MA(pa) (MFNPG(pa) | PGOFF(pa))
#define VA2MA(va) PA2MA(PADDR(va))
#define VA2MFN(va) MFN(PADDR(va))
enum {
Ndevs = 4,
MajorDevSD = 0x800,
MajorDevHDA = 0x300,
MajorDevHDC = 0x1600,
MajorDevXVD = 0xCA00,
};
extern SDifc sdxenifc;
typedef struct Ctlr Ctlr;
struct Ctlr {
int online;
ulong secsize;
ulong sectors;
int backend;
int devid;
int evtchn;
blkif_front_ring_t ring;
int ringref;
Lock ringlock;
char *frame;
QLock iolock;
int iodone;
Rendez wiodone;
};
static int
ringinit(Ctlr *ctlr, char *a)
{
blkif_sring_t *sr;
sr = (blkif_sring_t*)a;
memset(sr, 0, BY2PG);
SHARED_RING_INIT(sr);
FRONT_RING_INIT(&ctlr->ring, sr, BY2PG);
ctlr->ringref = shareframe(ctlr->backend, sr, 1);
return BY2PG;
}
static int
vbdsend(Ctlr *ctlr, int write, int ref, int nb, uvlong bno)
{
blkif_request_t *req;
int i, notify;
ilock(&ctlr->ringlock); // XXX conservative
i = ctlr->ring.req_prod_pvt;
req = RING_GET_REQUEST(&ctlr->ring, i); // XXX overflow?
req->operation = write ? BLKIF_OP_WRITE : BLKIF_OP_READ;
req->nr_segments = 1;
req->handle = ctlr->devid;
req->id = 1;
req->sector_number = bno;
req->seg[0].gref = ref;
req->seg[0].first_sect = 0;
req->seg[0].last_sect = nb-1;
ctlr->ring.req_prod_pvt = i+1;
RING_PUSH_REQUESTS_AND_CHECK_NOTIFY(&ctlr->ring, notify);
iunlock(&ctlr->ringlock);
return notify;
}
static void
backendconnect(Ctlr *ctlr)
{
char dir[64];
char buf[64];
sprint(dir, "device/vbd/%d/", ctlr->devid);
xenstore_setd(dir, "ring-ref", ctlr->ringref);
xenstore_setd(dir, "event-channel", ctlr->evtchn);
xenstore_setd(dir, "state", XenbusStateInitialised);
xenstore_gets(dir, "backend", buf, sizeof buf);
sprint(dir, "%s/", buf);
HYPERVISOR_yield();
xenstore_gets(dir, "state", buf, sizeof buf);
while (strtol(buf, 0, 0) != XenbusStateConnected) {
print("sdxen: waiting for vbd %d to connect\n", ctlr->devid);
tsleep(&up->sleep, return0, 0, 1000);
xenstore_gets(dir, "state", buf, sizeof buf);
}
xenstore_gets(dir, "sector-size", buf, sizeof buf);
ctlr->secsize = strtol(buf, 0, 0);
xenstore_gets(dir, "sectors", buf, sizeof buf);
ctlr->sectors = strtol(buf, 0, 0);
print("sdxen: backend %s secsize %ld sectors %ld\n", dir, ctlr->secsize, ctlr->sectors);
if (ctlr->secsize > BY2PG)
panic("sdxen: sector size bigger than mmu page size");
}
static void
backendactivate(Ctlr *ctlr)
{
char dir[64];
sprint(dir, "device/vbd/%d/", ctlr->devid);
xenstore_setd(dir, "state", XenbusStateConnected);
}
static SDev*
xenpnp(void)
{
SDev *sdev[Ndevs];
static char idno[Ndevs] = { '0', 'C', 'D', 'E' };
static char nunit[Ndevs] = { 8, 2, 2, 8 };
int i;
for (i = 0; i < Ndevs; i++) {
sdev[i] = mallocz(sizeof(SDev), 1);
sdev[i]->ifc = &sdxenifc;
sdev[i]->idno = idno[i];
sdev[i]->nunit = nunit[i];
sdev[i]->ctlr = (Ctlr**)mallocz(sdev[i]->nunit*sizeof(Ctlr*), 1);
if (i > 0)
sdev[i]->next = sdev[i-1];
}
return sdev[Ndevs-1];
}
static int
linuxdev(int idno, int subno)
{
switch (idno) {
case '0':
return MajorDevSD + 16*subno;
case 'C':
return MajorDevHDA + 64*subno;
case 'D':
return MajorDevHDC + 64*subno;
case 'E':
return MajorDevXVD + 16*subno;
default:
return 0;
}
}
static int
xenverify(SDunit *unit)
{
Ctlr *ctlr;
char dir[64];
char buf[64];
int devid;
int npage;
char *p;
if (unit->subno > unit->dev->nunit)
return 0;
devid = linuxdev(unit->dev->idno, unit->subno);
sprint(dir, "device/vbd/%d/", devid);
if (xenstore_gets(dir, "backend-id", buf, sizeof buf) <= 0)
return 0;
ctlr = mallocz(sizeof(Ctlr), 1);
((Ctlr**)unit->dev->ctlr)[unit->subno] = ctlr;
ctlr->devid = devid;
ctlr->backend = strtol(buf, 0, 0);
npage = 2;
p = xspanalloc(npage<<PGSHIFT, BY2PG, 0);
p += ringinit(ctlr, p);
ctlr->frame = p;
ctlr->evtchn = xenchanalloc(ctlr->backend);
backendconnect(ctlr);
unit->inquiry[0] = 0; // XXX how do we know if it's a CD?
unit->inquiry[2] = 2;
unit->inquiry[3] = 2;
unit->inquiry[4] = sizeof(unit->inquiry)-4;
strcpy((char*)&unit->inquiry[8], "Xen block device");
return 1;
}
static int
wiodone(void *a)
{
return ((Ctlr*)a)->iodone != 0;
}
static void
sdxenintr(Ureg *, void *a)
{
Ctlr *ctlr = a;
blkif_response_t *rsp;
int i, avail;
ilock(&ctlr->ringlock); // XXX conservative
for (;;) {
RING_FINAL_CHECK_FOR_RESPONSES(&ctlr->ring, avail);
if (!avail)
break;
i = ctlr->ring.rsp_cons;
rsp = RING_GET_RESPONSE(&ctlr->ring, i);
LOG(dprint("sdxen rsp %llud %d %d\n", rsp->id, rsp->operation, rsp->status);)
if (rsp->status == BLKIF_RSP_OKAY)
ctlr->iodone = 1;
else
ctlr->iodone = -1;
ctlr->ring.rsp_cons = ++i;
}
iunlock(&ctlr->ringlock);
if (ctlr->iodone)
wakeup(&ctlr->wiodone);
}
static Ctlr *kickctlr;
static void
kickme(void)
{
Ctlr *ctlr = kickctlr;
shared_info_t *s;
if (ctlr) {
s = HYPERVISOR_shared_info;
dprint("tick %d %d prod %d cons %d pending %x mask %x\n",
m->ticks, ctlr->iodone, ctlr->ring.sring->rsp_prod, ctlr->ring.rsp_cons,
s->evtchn_pending[0], s->evtchn_mask[0]);
sdxenintr(0, ctlr);
}
}
static int
xenonline(SDunit *unit)
{
Ctlr *ctlr;
ctlr = ((Ctlr**)unit->dev->ctlr)[unit->subno];
unit->sectors = ctlr->sectors;
unit->secsize = ctlr->secsize;
if (ctlr->online == 0) {
intrenable(ctlr->evtchn, sdxenintr, ctlr, BUSUNKNOWN, "vbd");
//kickctlr = ctlr;
//addclock0link(kickme, 10000);
backendactivate(ctlr);
ctlr->online = 1;
}
return 1;
}
static int
xenrio(SDreq*)
{
return -1;
}
static long
xenbio(SDunit* unit, int lun, int write, void* data, long nb, uvlong bno)
{
Ctlr *ctlr;
char *buf;
long bcount, len;
int ref;
int n;
USED(lun); // XXX meaningless
ctlr = ((Ctlr**)unit->dev->ctlr)[unit->subno];
LOG(("xenbio %c %lux %ld %lld\n", write? 'w' : 'r', (ulong)data, nb, bno);)
buf = data;
// XXX extra copying & fragmentation could be avoided by
// redefining sdmalloc() to get page-aligned buffers
if ((ulong)data&(BY2PG-1))
buf = ctlr->frame;
bcount = BY2PG/unit->secsize;
qlock(&ctlr->iolock);
for (n = nb; n > 0; n -= bcount) {
ref = shareframe(ctlr->backend, buf, !write);
if (bcount > n)
bcount = n;
len = bcount*unit->secsize;
if (write && buf == ctlr->frame)
memmove(buf, data, len);
ctlr->iodone = 0;
if (vbdsend(ctlr, write, ref, bcount, bno))
xenchannotify(ctlr->evtchn);
LOG(dprint("sleeping %d prod %d cons %d pending %x mask %x \n", ctlr->iodone, ctlr->ring.sring->rsp_prod, ctlr->ring.rsp_cons,
HYPERVISOR_shared_info->evtchn_pending[0], HYPERVISOR_shared_info->evtchn_mask[0]);)
sleep(&ctlr->wiodone, wiodone, ctlr);
xengrantend(ref);
if (ctlr->iodone < 0) {
qunlock(&ctlr->iolock);
return -1;
}
if (buf == ctlr->frame) {
if (!write)
memmove(data, buf, len);
data = (char*)data + len;
} else
buf += len;
bno += bcount;
}
qunlock(&ctlr->iolock);
return (nb-n)*unit->secsize;
}
static void
xenclear(SDev *)
{
}
SDifc sdxenifc = {
"xen", /* name */
xenpnp, /* pnp */
0, /* legacy */
0, /* enable */
0, /* disable */
xenverify, /* verify */
xenonline, /* online */
xenrio, /* rio */
0, /* rctl */
0, /* wctl */
xenbio, /* bio */
0, /* probe */
xenclear, /* clear */
0, /* stat */
};

1108
sys/src/9/xen/trap.c Normal file
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334
sys/src/9/xen/uartxen.c Normal file
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/*
* xencons.c
* Access to xen consoles.
*/
#include "u.h"
#include "../port/lib.h"
#include "mem.h"
#include "dat.h"
#include "fns.h"
#include "../port/error.h"
#include "../pc/io.h"
extern PhysUart xenphysuart;
static Uart xenuart = {
.name = "xencons",
.freq = 1843200,
.phys = &xenphysuart,
};
struct {
struct xencons_interface *intf;
int evtchn;
Lock txlock;
} xencons;
/*
* Debug print to xen "emergency console".
* Output only appears if xen is built with verbose=y
*/
void
dprint(char *fmt, ...)
{
int n;
va_list arg;
char buf[PRINTSIZE];
va_start(arg, fmt);
n = vseprint(buf, buf+sizeof(buf), fmt, arg) - buf;
va_end(arg);
HYPERVISOR_console_io(CONSOLEIO_write, n, buf);
}
static void kick(Uart*);
/*
* Emit a string to the guest OS console, bypassing the queue
* - before serialoq is initialised
* - when rdb is activated
* - from iprint() for messages from interrupt routines
* If ring is full, just throw extra output away.
*/
void
xenuartputs(char *s, int n)
{
struct xencons_interface *con = xencons.intf;
unsigned long prod;
int c;
ilock(&xencons.txlock);
prod = con->out_prod;
while (n-- > 0 && (prod - con->out_cons) < sizeof(con->out)) {
c = *s++;
/*
if (c == '\n')
con->out[MASK_XENCONS_IDX(prod++, con->out)] = '\r';
*/
con->out[MASK_XENCONS_IDX(prod++, con->out)] = c;
}
coherence();
con->out_prod = prod;
xenchannotify(xencons.evtchn);
iunlock(&xencons.txlock);
}
/*
* Handle channel event from console
*/
static void
interrupt(Ureg*, void *arg)
{
char c;
unsigned long cons;
Uart *uart;
struct xencons_interface *con = xencons.intf;
uart = &xenuart;
cons = con->in_cons;
coherence();
while (cons != con->in_prod) {
c = con->in[MASK_XENCONS_IDX(cons++, con->in)];
uartrecv(uart, c & 0xFF);
}
coherence();
con->in_cons = cons;
kick(nil);
}
static Uart*
pnp(void)
{
return &xenuart;
}
static void
enable(Uart*, int ie)
{
if(ie)
intrenable(xencons.evtchn, interrupt, 0, BUSUNKNOWN, "Xen console");
}
static void
disable(Uart*)
{
}
/*
* Send queued output to guest OS console
*/
static void
kick(Uart*)
{
struct xencons_interface *con = xencons.intf;
unsigned long prod;
long avail, idx, n, m;
ilock(&xencons.txlock);
prod = con->out_prod;
avail = sizeof(con->out) - (prod - con->out_cons);
while (avail > 0) {
idx = MASK_XENCONS_IDX(prod, con->out);
m = sizeof(con->out) - idx;
if (m > avail)
m = avail;
n = qconsume(serialoq, con->out+idx, m);
if (n < 0)
break;
prod += n;
avail -= n;
}
coherence();
con->out_prod = prod;
xenchannotify(xencons.evtchn);
iunlock(&xencons.txlock);
}
static void
donothing(Uart*, int)
{
}
static int
donothingint(Uart*, int)
{
return 0;
}
static int
baud(Uart *uart, int n)
{
if(n <= 0)
return -1;
uart->baud = n;
return 0;
}
static int
bits(Uart *uart, int n)
{
switch(n){
case 7:
case 8:
break;
default:
return -1;
}
uart->bits = n;
return 0;
}
static int
stop(Uart *uart, int n)
{
if(n != 1)
return -1;
uart->stop = n;
return 0;
}
static int
parity(Uart *uart, int n)
{
if(n != 'n')
return -1;
uart->parity = n;
return 0;
}
static long
status(Uart *uart, void *buf, long n, long offset)
{
char *p;
p = malloc(READSTR);
if(p == nil)
error(Enomem);
snprint(p, READSTR,
"b%d\n"
"dev(%d) type(%d) framing(%d) overruns(%d) "
"berr(%d) serr(%d)\n",
uart->baud,
uart->dev,
uart->type,
uart->ferr,
uart->oerr,
uart->berr,
uart->serr
);
n = readstr(offset, buf, n, p);
free(p);
return n;
}
void
xenputc(Uart*, int c)
{
struct xencons_interface *con = xencons.intf;
unsigned long prod;
c &= 0xFF;
ilock(&xencons.txlock);
/*
while(con->out_cons == con->out_prod)
HYPERVISOR_yield();
*/
if(con->out_cons == con->out_prod){
iunlock(&xencons.txlock);
return;
}
prod = con->out_prod;
if((con->out[MASK_XENCONS_IDX(prod++, con->out)] = c) == '\n')
con->out[MASK_XENCONS_IDX(prod++, con->out)] = '\r';
coherence();
con->out_prod = prod;
xenchannotify(xencons.evtchn);
iunlock(&xencons.txlock);
}
int
xengetc(Uart*)
{
struct xencons_interface *con = xencons.intf;
char c;
c = 0;
if(con->in_cons != con->in_prod){
coherence();
c = con->in[MASK_XENCONS_IDX(con->in_cons++, con->in)];
if (con->in_cons == con->in_prod)
xenchannotify(xencons.evtchn);
}
return c;
}
PhysUart xenphysuart = {
.name = "xenuart",
.pnp = pnp,
.enable = enable,
.disable = disable,
.kick = kick,
.dobreak = donothing,
.baud = baud,
.bits = bits,
.stop = stop,
.parity = parity,
.modemctl = donothing,
.rts = donothing,
.dtr = donothing,
.status = status,
.fifo = donothing,
.getc = xengetc,
.putc = xenputc,
};
/* console=0 to enable */
void
xenconsinit(void)
{
xencons.intf = (struct xencons_interface*)mmumapframe(XENCONSOLE, xenstart->console_mfn);
xencons.evtchn = xenstart->console_evtchn;
consuart = &xenuart;
}
void
kbdenable(void)
{
Uart *uart;
int n;
char *p, *cmd;
if((p = getconf("console")) == nil)
return;
n = strtoul(p, &cmd, 0);
if(p == cmd || n != 0)
return;
uart = &xenuart;
(*uart->phys->enable)(uart, 0);
uartctl(uart, "b9600 l8 pn s1");
if(*cmd != '\0')
uartctl(uart, cmd);
consuart = uart;
uart->console = 1;
uartputs("CONSOLE1\n", 9);
//*(char*)0 = 0;
}

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XEN NOTICE
==========
This copyright applies to all files within this subdirectory and its
subdirectories:
include/public/*.h
include/public/hvm/*.h
include/public/io/*.h
The intention is that these files can be freely copied into the source
tree of an operating system when porting that OS to run on Xen. Doing
so does *not* cause the OS to become subject to the terms of the GPL.
All other files in the Xen source distribution are covered by version
2 of the GNU General Public License except where explicitly stated
otherwise within individual source files.
-- Keir Fraser (on behalf of the Xen team)
=====================================================================
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to
deal in the Software without restriction, including without limitation the
rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
sell copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.

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/******************************************************************************
* arch-arm.h
*
* Guest OS interface to ARM Xen.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright 2011 (C) Citrix Systems
*/
#ifndef __XEN_PUBLIC_ARCH_ARM_H__
#define __XEN_PUBLIC_ARCH_ARM_H__
/* hypercall calling convention
* ----------------------------
*
* A hypercall is issued using the ARM HVC instruction.
*
* A hypercall can take up to 5 arguments. These are passed in
* registers, the first argument in x0/r0 (for arm64/arm32 guests
* respectively irrespective of whether the underlying hypervisor is
* 32- or 64-bit), the second argument in x1/r1, the third in x2/r2,
* the forth in x3/r3 and the fifth in x4/r4.
*
* The hypercall number is passed in r12 (arm) or x16 (arm64). In both
* cases the relevant ARM procedure calling convention specifies this
* is an inter-procedure-call scratch register (e.g. for use in linker
* stubs). This use does not conflict with use during a hypercall.
*
* The HVC ISS must contain a Xen specific TAG: XEN_HYPERCALL_TAG.
*
* The return value is in x0/r0.
*
* The hypercall will clobber x16/r12 and the argument registers used
* by that hypercall (except r0 which is the return value) i.e. in
* addition to x16/r12 a 2 argument hypercall will clobber x1/r1 and a
* 4 argument hypercall will clobber x1/r1, x2/r2 and x3/r3.
*
* Parameter structs passed to hypercalls are laid out according to
* the Procedure Call Standard for the ARM Architecture (AAPCS, AKA
* EABI) and Procedure Call Standard for the ARM 64-bit Architecture
* (AAPCS64). Where there is a conflict the 64-bit standard should be
* used regardless of guest type. Structures which are passed as
* hypercall arguments are always little endian.
*/
#define XEN_HYPERCALL_TAG 0XEA1
#define uint64_aligned_t uint64_t __attribute__((aligned(8)))
#ifndef __ASSEMBLY__
#define ___DEFINE_XEN_GUEST_HANDLE(name, type) \
typedef union { type *p; unsigned long q; } \
__guest_handle_ ## name; \
typedef union { type *p; uint64_aligned_t q; } \
__guest_handle_64_ ## name;
/*
* XEN_GUEST_HANDLE represents a guest pointer, when passed as a field
* in a struct in memory. On ARM is always 8 bytes sizes and 8 bytes
* aligned.
* XEN_GUEST_HANDLE_PARAM represent a guest pointer, when passed as an
* hypercall argument. It is 4 bytes on aarch and 8 bytes on aarch64.
*/
#define __DEFINE_XEN_GUEST_HANDLE(name, type) \
___DEFINE_XEN_GUEST_HANDLE(name, type); \
___DEFINE_XEN_GUEST_HANDLE(const_##name, const type)
#define DEFINE_XEN_GUEST_HANDLE(name) __DEFINE_XEN_GUEST_HANDLE(name, name)
#define __XEN_GUEST_HANDLE(name) __guest_handle_64_ ## name
#define XEN_GUEST_HANDLE(name) __XEN_GUEST_HANDLE(name)
/* this is going to be changed on 64 bit */
#define XEN_GUEST_HANDLE_PARAM(name) __guest_handle_ ## name
#define set_xen_guest_handle_raw(hnd, val) \
do { \
typeof(&(hnd)) _sxghr_tmp = &(hnd); \
_sxghr_tmp->q = 0; \
_sxghr_tmp->p = val; \
} while ( 0 )
#ifdef __XEN_TOOLS__
#define get_xen_guest_handle(val, hnd) do { val = (hnd).p; } while (0)
#endif
#define set_xen_guest_handle(hnd, val) set_xen_guest_handle_raw(hnd, val)
#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
/* Anonymous union includes both 32- and 64-bit names (e.g., r0/x0). */
# define __DECL_REG(n64, n32) union { \
uint64_t n64; \
uint32_t n32; \
}
#else
/* Non-gcc sources must always use the proper 64-bit name (e.g., x0). */
#define __DECL_REG(n64, n32) uint64_t n64
#endif
struct vcpu_guest_core_regs
{
/* Aarch64 Aarch32 */
__DECL_REG(x0, r0_usr);
__DECL_REG(x1, r1_usr);
__DECL_REG(x2, r2_usr);
__DECL_REG(x3, r3_usr);
__DECL_REG(x4, r4_usr);
__DECL_REG(x5, r5_usr);
__DECL_REG(x6, r6_usr);
__DECL_REG(x7, r7_usr);
__DECL_REG(x8, r8_usr);
__DECL_REG(x9, r9_usr);
__DECL_REG(x10, r10_usr);
__DECL_REG(x11, r11_usr);
__DECL_REG(x12, r12_usr);
__DECL_REG(x13, sp_usr);
__DECL_REG(x14, lr_usr);
__DECL_REG(x15, __unused_sp_hyp);
__DECL_REG(x16, lr_irq);
__DECL_REG(x17, sp_irq);
__DECL_REG(x18, lr_svc);
__DECL_REG(x19, sp_svc);
__DECL_REG(x20, lr_abt);
__DECL_REG(x21, sp_abt);
__DECL_REG(x22, lr_und);
__DECL_REG(x23, sp_und);
__DECL_REG(x24, r8_fiq);
__DECL_REG(x25, r9_fiq);
__DECL_REG(x26, r10_fiq);
__DECL_REG(x27, r11_fiq);
__DECL_REG(x28, r12_fiq);
__DECL_REG(x29, sp_fiq);
__DECL_REG(x30, lr_fiq);
/* Return address and mode */
__DECL_REG(pc64, pc32); /* ELR_EL2 */
uint32_t cpsr; /* SPSR_EL2 */
union {
uint32_t spsr_el1; /* AArch64 */
uint32_t spsr_svc; /* AArch32 */
};
/* AArch32 guests only */
uint32_t spsr_fiq, spsr_irq, spsr_und, spsr_abt;
/* AArch64 guests only */
uint64_t sp_el0;
uint64_t sp_el1, elr_el1;
};
typedef struct vcpu_guest_core_regs vcpu_guest_core_regs_t;
DEFINE_XEN_GUEST_HANDLE(vcpu_guest_core_regs_t);
#undef __DECL_REG
typedef uint64_t xen_pfn_t;
#define PRI_xen_pfn PRIx64
/* Maximum number of virtual CPUs in legacy multi-processor guests. */
/* Only one. All other VCPUS must use VCPUOP_register_vcpu_info */
#define XEN_LEGACY_MAX_VCPUS 1
typedef uint64_t xen_ulong_t;
#define PRI_xen_ulong PRIx64
struct vcpu_guest_context {
#define _VGCF_online 0
#define VGCF_online (1<<_VGCF_online)
uint32_t flags; /* VGCF_* */
struct vcpu_guest_core_regs user_regs; /* Core CPU registers */
uint32_t sctlr, ttbcr;
uint64_t ttbr0, ttbr1;
};
typedef struct vcpu_guest_context vcpu_guest_context_t;
DEFINE_XEN_GUEST_HANDLE(vcpu_guest_context_t);
struct arch_vcpu_info { };
typedef struct arch_vcpu_info arch_vcpu_info_t;
struct arch_shared_info { };
typedef struct arch_shared_info arch_shared_info_t;
typedef uint64_t xen_callback_t;
#endif /* ifndef __ASSEMBLY __ */
/* PSR bits (CPSR, SPSR)*/
/* 32 bit modes */
#define PSR_MODE_USR 0x10
#define PSR_MODE_FIQ 0x11
#define PSR_MODE_IRQ 0x12
#define PSR_MODE_SVC 0x13
#define PSR_MODE_MON 0x16
#define PSR_MODE_ABT 0x17
#define PSR_MODE_HYP 0x1a
#define PSR_MODE_UND 0x1b
#define PSR_MODE_SYS 0x1f
/* 64 bit modes */
#ifdef __aarch64__
#define PSR_MODE_BIT 0x10 /* Set iff AArch32 */
#define PSR_MODE_EL3h 0x0d
#define PSR_MODE_EL3t 0x0c
#define PSR_MODE_EL2h 0x09
#define PSR_MODE_EL2t 0x08
#define PSR_MODE_EL1h 0x05
#define PSR_MODE_EL1t 0x04
#define PSR_MODE_EL0t 0x00
#endif
#define PSR_THUMB (1<<5) /* Thumb Mode enable */
#define PSR_FIQ_MASK (1<<6) /* Fast Interrupt mask */
#define PSR_IRQ_MASK (1<<7) /* Interrupt mask */
#define PSR_ABT_MASK (1<<8) /* Asynchronous Abort mask */
#define PSR_BIG_ENDIAN (1<<9) /* Big Endian Mode */
#define PSR_IT_MASK (0x0600fc00) /* Thumb If-Then Mask */
#define PSR_JAZELLE (1<<24) /* Jazelle Mode */
#define PSR_GUEST_INIT (PSR_ABT_MASK|PSR_FIQ_MASK|PSR_IRQ_MASK|PSR_MODE_SVC)
#endif /* __XEN_PUBLIC_ARCH_ARM_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/*
* Structure definitions for HVM state that is held by Xen and must
* be saved along with the domain's memory and device-model state.
*
* Copyright (c) 2012 Citrix Systems Ltd.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef __XEN_PUBLIC_HVM_SAVE_ARM_H__
#define __XEN_PUBLIC_HVM_SAVE_ARM_H__
#endif
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* arch-x86/cpuid.h
*
* CPUID interface to Xen.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2007 Citrix Systems, Inc.
*
* Authors:
* Keir Fraser <keir@xen.org>
*/
#ifndef __XEN_PUBLIC_ARCH_X86_CPUID_H__
#define __XEN_PUBLIC_ARCH_X86_CPUID_H__
/* Xen identification leaves start at 0x40000000. */
#define XEN_CPUID_FIRST_LEAF 0x40000000
#define XEN_CPUID_LEAF(i) (XEN_CPUID_FIRST_LEAF + (i))
/*
* Leaf 1 (0x40000000)
* EAX: Largest Xen-information leaf. All leaves up to an including @EAX
* are supported by the Xen host.
* EBX-EDX: "XenVMMXenVMM" signature, allowing positive identification
* of a Xen host.
*/
#define XEN_CPUID_SIGNATURE_EBX 0x566e6558 /* "XenV" */
#define XEN_CPUID_SIGNATURE_ECX 0x65584d4d /* "MMXe" */
#define XEN_CPUID_SIGNATURE_EDX 0x4d4d566e /* "nVMM" */
/*
* Leaf 2 (0x40000001)
* EAX[31:16]: Xen major version.
* EAX[15: 0]: Xen minor version.
* EBX-EDX: Reserved (currently all zeroes).
*/
/*
* Leaf 3 (0x40000002)
* EAX: Number of hypercall transfer pages. This register is always guaranteed
* to specify one hypercall page.
* EBX: Base address of Xen-specific MSRs.
* ECX: Features 1. Unused bits are set to zero.
* EDX: Features 2. Unused bits are set to zero.
*/
/* Does the host support MMU_PT_UPDATE_PRESERVE_AD for this guest? */
#define _XEN_CPUID_FEAT1_MMU_PT_UPDATE_PRESERVE_AD 0
#define XEN_CPUID_FEAT1_MMU_PT_UPDATE_PRESERVE_AD (1u<<0)
#endif /* __XEN_PUBLIC_ARCH_X86_CPUID_H__ */

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/*
* Structure definitions for HVM state that is held by Xen and must
* be saved along with the domain's memory and device-model state.
*
* Copyright (c) 2007 XenSource Ltd.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef __XEN_PUBLIC_HVM_SAVE_X86_H__
#define __XEN_PUBLIC_HVM_SAVE_X86_H__
/*
* Save/restore header: general info about the save file.
*/
#define HVM_FILE_MAGIC 0x54381286
#define HVM_FILE_VERSION 0x00000001
struct hvm_save_header {
uint32_t magic; /* Must be HVM_FILE_MAGIC */
uint32_t version; /* File format version */
uint64_t changeset; /* Version of Xen that saved this file */
uint32_t cpuid; /* CPUID[0x01][%eax] on the saving machine */
uint32_t gtsc_khz; /* Guest's TSC frequency in kHz */
};
DECLARE_HVM_SAVE_TYPE(HEADER, 1, struct hvm_save_header);
/*
* Processor
*
* Compat: Pre-3.4 didn't have msr_tsc_aux
*/
struct hvm_hw_cpu {
uint8_t fpu_regs[512];
uint64_t rax;
uint64_t rbx;
uint64_t rcx;
uint64_t rdx;
uint64_t rbp;
uint64_t rsi;
uint64_t rdi;
uint64_t rsp;
uint64_t r8;
uint64_t r9;
uint64_t r10;
uint64_t r11;
uint64_t r12;
uint64_t r13;
uint64_t r14;
uint64_t r15;
uint64_t rip;
uint64_t rflags;
uint64_t cr0;
uint64_t cr2;
uint64_t cr3;
uint64_t cr4;
uint64_t dr0;
uint64_t dr1;
uint64_t dr2;
uint64_t dr3;
uint64_t dr6;
uint64_t dr7;
uint32_t cs_sel;
uint32_t ds_sel;
uint32_t es_sel;
uint32_t fs_sel;
uint32_t gs_sel;
uint32_t ss_sel;
uint32_t tr_sel;
uint32_t ldtr_sel;
uint32_t cs_limit;
uint32_t ds_limit;
uint32_t es_limit;
uint32_t fs_limit;
uint32_t gs_limit;
uint32_t ss_limit;
uint32_t tr_limit;
uint32_t ldtr_limit;
uint32_t idtr_limit;
uint32_t gdtr_limit;
uint64_t cs_base;
uint64_t ds_base;
uint64_t es_base;
uint64_t fs_base;
uint64_t gs_base;
uint64_t ss_base;
uint64_t tr_base;
uint64_t ldtr_base;
uint64_t idtr_base;
uint64_t gdtr_base;
uint32_t cs_arbytes;
uint32_t ds_arbytes;
uint32_t es_arbytes;
uint32_t fs_arbytes;
uint32_t gs_arbytes;
uint32_t ss_arbytes;
uint32_t tr_arbytes;
uint32_t ldtr_arbytes;
uint64_t sysenter_cs;
uint64_t sysenter_esp;
uint64_t sysenter_eip;
/* msr for em64t */
uint64_t shadow_gs;
/* msr content saved/restored. */
uint64_t msr_flags;
uint64_t msr_lstar;
uint64_t msr_star;
uint64_t msr_cstar;
uint64_t msr_syscall_mask;
uint64_t msr_efer;
uint64_t msr_tsc_aux;
/* guest's idea of what rdtsc() would return */
uint64_t tsc;
/* pending event, if any */
union {
uint32_t pending_event;
struct {
uint8_t pending_vector:8;
uint8_t pending_type:3;
uint8_t pending_error_valid:1;
uint32_t pending_reserved:19;
uint8_t pending_valid:1;
};
};
/* error code for pending event */
uint32_t error_code;
};
struct hvm_hw_cpu_compat {
uint8_t fpu_regs[512];
uint64_t rax;
uint64_t rbx;
uint64_t rcx;
uint64_t rdx;
uint64_t rbp;
uint64_t rsi;
uint64_t rdi;
uint64_t rsp;
uint64_t r8;
uint64_t r9;
uint64_t r10;
uint64_t r11;
uint64_t r12;
uint64_t r13;
uint64_t r14;
uint64_t r15;
uint64_t rip;
uint64_t rflags;
uint64_t cr0;
uint64_t cr2;
uint64_t cr3;
uint64_t cr4;
uint64_t dr0;
uint64_t dr1;
uint64_t dr2;
uint64_t dr3;
uint64_t dr6;
uint64_t dr7;
uint32_t cs_sel;
uint32_t ds_sel;
uint32_t es_sel;
uint32_t fs_sel;
uint32_t gs_sel;
uint32_t ss_sel;
uint32_t tr_sel;
uint32_t ldtr_sel;
uint32_t cs_limit;
uint32_t ds_limit;
uint32_t es_limit;
uint32_t fs_limit;
uint32_t gs_limit;
uint32_t ss_limit;
uint32_t tr_limit;
uint32_t ldtr_limit;
uint32_t idtr_limit;
uint32_t gdtr_limit;
uint64_t cs_base;
uint64_t ds_base;
uint64_t es_base;
uint64_t fs_base;
uint64_t gs_base;
uint64_t ss_base;
uint64_t tr_base;
uint64_t ldtr_base;
uint64_t idtr_base;
uint64_t gdtr_base;
uint32_t cs_arbytes;
uint32_t ds_arbytes;
uint32_t es_arbytes;
uint32_t fs_arbytes;
uint32_t gs_arbytes;
uint32_t ss_arbytes;
uint32_t tr_arbytes;
uint32_t ldtr_arbytes;
uint64_t sysenter_cs;
uint64_t sysenter_esp;
uint64_t sysenter_eip;
/* msr for em64t */
uint64_t shadow_gs;
/* msr content saved/restored. */
uint64_t msr_flags;
uint64_t msr_lstar;
uint64_t msr_star;
uint64_t msr_cstar;
uint64_t msr_syscall_mask;
uint64_t msr_efer;
/*uint64_t msr_tsc_aux; COMPAT */
/* guest's idea of what rdtsc() would return */
uint64_t tsc;
/* pending event, if any */
union {
uint32_t pending_event;
struct {
uint8_t pending_vector:8;
uint8_t pending_type:3;
uint8_t pending_error_valid:1;
uint32_t pending_reserved:19;
uint8_t pending_valid:1;
};
};
/* error code for pending event */
uint32_t error_code;
};
static inline int _hvm_hw_fix_cpu(void *h) {
union hvm_hw_cpu_union {
struct hvm_hw_cpu nat;
struct hvm_hw_cpu_compat cmp;
} *ucpu = (union hvm_hw_cpu_union *)h;
/* If we copy from the end backwards, we should
* be able to do the modification in-place */
ucpu->nat.error_code = ucpu->cmp.error_code;
ucpu->nat.pending_event = ucpu->cmp.pending_event;
ucpu->nat.tsc = ucpu->cmp.tsc;
ucpu->nat.msr_tsc_aux = 0;
return 0;
}
DECLARE_HVM_SAVE_TYPE_COMPAT(CPU, 2, struct hvm_hw_cpu, \
struct hvm_hw_cpu_compat, _hvm_hw_fix_cpu);
/*
* PIC
*/
struct hvm_hw_vpic {
/* IR line bitmasks. */
uint8_t irr;
uint8_t imr;
uint8_t isr;
/* Line IRx maps to IRQ irq_base+x */
uint8_t irq_base;
/*
* Where are we in ICW2-4 initialisation (0 means no init in progress)?
* Bits 0-1 (=x): Next write at A=1 sets ICW(x+1).
* Bit 2: ICW1.IC4 (1 == ICW4 included in init sequence)
* Bit 3: ICW1.SNGL (0 == ICW3 included in init sequence)
*/
uint8_t init_state:4;
/* IR line with highest priority. */
uint8_t priority_add:4;
/* Reads from A=0 obtain ISR or IRR? */
uint8_t readsel_isr:1;
/* Reads perform a polling read? */
uint8_t poll:1;
/* Automatically clear IRQs from the ISR during INTA? */
uint8_t auto_eoi:1;
/* Automatically rotate IRQ priorities during AEOI? */
uint8_t rotate_on_auto_eoi:1;
/* Exclude slave inputs when considering in-service IRQs? */
uint8_t special_fully_nested_mode:1;
/* Special mask mode excludes masked IRs from AEOI and priority checks. */
uint8_t special_mask_mode:1;
/* Is this a master PIC or slave PIC? (NB. This is not programmable.) */
uint8_t is_master:1;
/* Edge/trigger selection. */
uint8_t elcr;
/* Virtual INT output. */
uint8_t int_output;
};
DECLARE_HVM_SAVE_TYPE(PIC, 3, struct hvm_hw_vpic);
/*
* IO-APIC
*/
#define VIOAPIC_NUM_PINS 48 /* 16 ISA IRQs, 32 non-legacy PCI IRQS. */
struct hvm_hw_vioapic {
uint64_t base_address;
uint32_t ioregsel;
uint32_t id;
union vioapic_redir_entry
{
uint64_t bits;
struct {
uint8_t vector;
uint8_t delivery_mode:3;
uint8_t dest_mode:1;
uint8_t delivery_status:1;
uint8_t polarity:1;
uint8_t remote_irr:1;
uint8_t trig_mode:1;
uint8_t mask:1;
uint8_t reserve:7;
uint8_t reserved[4];
uint8_t dest_id;
} fields;
} redirtbl[VIOAPIC_NUM_PINS];
};
DECLARE_HVM_SAVE_TYPE(IOAPIC, 4, struct hvm_hw_vioapic);
/*
* LAPIC
*/
struct hvm_hw_lapic {
uint64_t apic_base_msr;
uint32_t disabled; /* VLAPIC_xx_DISABLED */
uint32_t timer_divisor;
uint64_t tdt_msr;
};
DECLARE_HVM_SAVE_TYPE(LAPIC, 5, struct hvm_hw_lapic);
struct hvm_hw_lapic_regs {
uint8_t data[1024];
};
DECLARE_HVM_SAVE_TYPE(LAPIC_REGS, 6, struct hvm_hw_lapic_regs);
/*
* IRQs
*/
struct hvm_hw_pci_irqs {
/*
* Virtual interrupt wires for a single PCI bus.
* Indexed by: device*4 + INTx#.
*/
union {
unsigned long i[16 / sizeof (unsigned long)]; /* DECLARE_BITMAP(i, 32*4); */
uint64_t pad[2];
};
};
DECLARE_HVM_SAVE_TYPE(PCI_IRQ, 7, struct hvm_hw_pci_irqs);
struct hvm_hw_isa_irqs {
/*
* Virtual interrupt wires for ISA devices.
* Indexed by ISA IRQ (assumes no ISA-device IRQ sharing).
*/
union {
unsigned long i[1]; /* DECLARE_BITMAP(i, 16); */
uint64_t pad[1];
};
};
DECLARE_HVM_SAVE_TYPE(ISA_IRQ, 8, struct hvm_hw_isa_irqs);
struct hvm_hw_pci_link {
/*
* PCI-ISA interrupt router.
* Each PCI <device:INTx#> is 'wire-ORed' into one of four links using
* the traditional 'barber's pole' mapping ((device + INTx#) & 3).
* The router provides a programmable mapping from each link to a GSI.
*/
uint8_t route[4];
uint8_t pad0[4];
};
DECLARE_HVM_SAVE_TYPE(PCI_LINK, 9, struct hvm_hw_pci_link);
/*
* PIT
*/
struct hvm_hw_pit {
struct hvm_hw_pit_channel {
uint32_t count; /* can be 65536 */
uint16_t latched_count;
uint8_t count_latched;
uint8_t status_latched;
uint8_t status;
uint8_t read_state;
uint8_t write_state;
uint8_t write_latch;
uint8_t rw_mode;
uint8_t mode;
uint8_t bcd; /* not supported */
uint8_t gate; /* timer start */
} channels[3]; /* 3 x 16 bytes */
uint32_t speaker_data_on;
uint32_t pad0;
};
DECLARE_HVM_SAVE_TYPE(PIT, 10, struct hvm_hw_pit);
/*
* RTC
*/
#define RTC_CMOS_SIZE 14
struct hvm_hw_rtc {
/* CMOS bytes */
uint8_t cmos_data[RTC_CMOS_SIZE];
/* Index register for 2-part operations */
uint8_t cmos_index;
uint8_t pad0;
};
DECLARE_HVM_SAVE_TYPE(RTC, 11, struct hvm_hw_rtc);
/*
* HPET
*/
#define HPET_TIMER_NUM 3 /* 3 timers supported now */
struct hvm_hw_hpet {
/* Memory-mapped, software visible registers */
uint64_t capability; /* capabilities */
uint64_t res0; /* reserved */
uint64_t config; /* configuration */
uint64_t res1; /* reserved */
uint64_t isr; /* interrupt status reg */
uint64_t res2[25]; /* reserved */
uint64_t mc64; /* main counter */
uint64_t res3; /* reserved */
struct { /* timers */
uint64_t config; /* configuration/cap */
uint64_t cmp; /* comparator */
uint64_t fsb; /* FSB route, not supported now */
uint64_t res4; /* reserved */
} timers[HPET_TIMER_NUM];
uint64_t res5[4*(24-HPET_TIMER_NUM)]; /* reserved, up to 0x3ff */
/* Hidden register state */
uint64_t period[HPET_TIMER_NUM]; /* Last value written to comparator */
};
DECLARE_HVM_SAVE_TYPE(HPET, 12, struct hvm_hw_hpet);
/*
* PM timer
*/
struct hvm_hw_pmtimer {
uint32_t tmr_val; /* PM_TMR_BLK.TMR_VAL: 32bit free-running counter */
uint16_t pm1a_sts; /* PM1a_EVT_BLK.PM1a_STS: status register */
uint16_t pm1a_en; /* PM1a_EVT_BLK.PM1a_EN: enable register */
};
DECLARE_HVM_SAVE_TYPE(PMTIMER, 13, struct hvm_hw_pmtimer);
/*
* MTRR MSRs
*/
struct hvm_hw_mtrr {
#define MTRR_VCNT 8
#define NUM_FIXED_MSR 11
uint64_t msr_pat_cr;
/* mtrr physbase & physmask msr pair*/
uint64_t msr_mtrr_var[MTRR_VCNT*2];
uint64_t msr_mtrr_fixed[NUM_FIXED_MSR];
uint64_t msr_mtrr_cap;
uint64_t msr_mtrr_def_type;
};
DECLARE_HVM_SAVE_TYPE(MTRR, 14, struct hvm_hw_mtrr);
/*
* The save area of XSAVE/XRSTOR.
*/
struct hvm_hw_cpu_xsave {
uint64_t xfeature_mask;
uint64_t xcr0; /* Updated by XSETBV */
uint64_t xcr0_accum; /* Updated by XSETBV */
struct {
struct { char x[512]; } fpu_sse;
struct {
uint64_t xstate_bv; /* Updated by XRSTOR */
uint64_t reserved[7];
} xsave_hdr; /* The 64-byte header */
struct { char x[0]; } ymm; /* YMM */
} save_area;
};
#define CPU_XSAVE_CODE 16
/*
* Viridian hypervisor context.
*/
struct hvm_viridian_domain_context {
uint64_t hypercall_gpa;
uint64_t guest_os_id;
};
DECLARE_HVM_SAVE_TYPE(VIRIDIAN_DOMAIN, 15, struct hvm_viridian_domain_context);
struct hvm_viridian_vcpu_context {
uint64_t apic_assist;
};
DECLARE_HVM_SAVE_TYPE(VIRIDIAN_VCPU, 17, struct hvm_viridian_vcpu_context);
struct hvm_vmce_vcpu {
uint64_t caps;
uint64_t mci_ctl2_bank0;
uint64_t mci_ctl2_bank1;
};
DECLARE_HVM_SAVE_TYPE(VMCE_VCPU, 18, struct hvm_vmce_vcpu);
struct hvm_tsc_adjust {
uint64_t tsc_adjust;
};
DECLARE_HVM_SAVE_TYPE(TSC_ADJUST, 19, struct hvm_tsc_adjust);
/*
* Largest type-code in use
*/
#define HVM_SAVE_CODE_MAX 19
#endif /* __XEN_PUBLIC_HVM_SAVE_X86_H__ */

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/******************************************************************************
* arch-x86/mca.h
*
* Contributed by Advanced Micro Devices, Inc.
* Author: Christoph Egger <Christoph.Egger@amd.com>
*
* Guest OS machine check interface to x86 Xen.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
/* Full MCA functionality has the following Usecases from the guest side:
*
* Must have's:
* 1. Dom0 and DomU register machine check trap callback handlers
* (already done via "set_trap_table" hypercall)
* 2. Dom0 registers machine check event callback handler
* (doable via EVTCHNOP_bind_virq)
* 3. Dom0 and DomU fetches machine check data
* 4. Dom0 wants Xen to notify a DomU
* 5. Dom0 gets DomU ID from physical address
* 6. Dom0 wants Xen to kill DomU (already done for "xm destroy")
*
* Nice to have's:
* 7. Dom0 wants Xen to deactivate a physical CPU
* This is better done as separate task, physical CPU hotplugging,
* and hypercall(s) should be sysctl's
* 8. Page migration proposed from Xen NUMA work, where Dom0 can tell Xen to
* move a DomU (or Dom0 itself) away from a malicious page
* producing correctable errors.
* 9. offlining physical page:
* Xen free's and never re-uses a certain physical page.
* 10. Testfacility: Allow Dom0 to write values into machine check MSR's
* and tell Xen to trigger a machine check
*/
#ifndef __XEN_PUBLIC_ARCH_X86_MCA_H__
#define __XEN_PUBLIC_ARCH_X86_MCA_H__
/* Hypercall */
#define __HYPERVISOR_mca __HYPERVISOR_arch_0
/*
* The xen-unstable repo has interface version 0x03000001; out interface
* is incompatible with that and any future minor revisions, so we
* choose a different version number range that is numerically less
* than that used in xen-unstable.
*/
#define XEN_MCA_INTERFACE_VERSION 0x01ecc003
/* IN: Dom0 calls hypercall to retrieve nonurgent telemetry */
#define XEN_MC_NONURGENT 0x0001
/* IN: Dom0/DomU calls hypercall to retrieve urgent telemetry */
#define XEN_MC_URGENT 0x0002
/* IN: Dom0 acknowledges previosly-fetched telemetry */
#define XEN_MC_ACK 0x0004
/* OUT: All is ok */
#define XEN_MC_OK 0x0
/* OUT: Domain could not fetch data. */
#define XEN_MC_FETCHFAILED 0x1
/* OUT: There was no machine check data to fetch. */
#define XEN_MC_NODATA 0x2
/* OUT: Between notification time and this hypercall an other
* (most likely) correctable error happened. The fetched data,
* does not match the original machine check data. */
#define XEN_MC_NOMATCH 0x4
/* OUT: DomU did not register MC NMI handler. Try something else. */
#define XEN_MC_CANNOTHANDLE 0x8
/* OUT: Notifying DomU failed. Retry later or try something else. */
#define XEN_MC_NOTDELIVERED 0x10
/* Note, XEN_MC_CANNOTHANDLE and XEN_MC_NOTDELIVERED are mutually exclusive. */
#ifndef __ASSEMBLY__
#define VIRQ_MCA VIRQ_ARCH_0 /* G. (DOM0) Machine Check Architecture */
/*
* Machine Check Architecure:
* structs are read-only and used to report all kinds of
* correctable and uncorrectable errors detected by the HW.
* Dom0 and DomU: register a handler to get notified.
* Dom0 only: Correctable errors are reported via VIRQ_MCA
* Dom0 and DomU: Uncorrectable errors are reported via nmi handlers
*/
#define MC_TYPE_GLOBAL 0
#define MC_TYPE_BANK 1
#define MC_TYPE_EXTENDED 2
#define MC_TYPE_RECOVERY 3
struct mcinfo_common {
uint16_t type; /* structure type */
uint16_t size; /* size of this struct in bytes */
};
#define MC_FLAG_CORRECTABLE (1 << 0)
#define MC_FLAG_UNCORRECTABLE (1 << 1)
#define MC_FLAG_RECOVERABLE (1 << 2)
#define MC_FLAG_POLLED (1 << 3)
#define MC_FLAG_RESET (1 << 4)
#define MC_FLAG_CMCI (1 << 5)
#define MC_FLAG_MCE (1 << 6)
/* contains global x86 mc information */
struct mcinfo_global {
struct mcinfo_common common;
/* running domain at the time in error (most likely the impacted one) */
uint16_t mc_domid;
uint16_t mc_vcpuid; /* virtual cpu scheduled for mc_domid */
uint32_t mc_socketid; /* physical socket of the physical core */
uint16_t mc_coreid; /* physical impacted core */
uint16_t mc_core_threadid; /* core thread of physical core */
uint32_t mc_apicid;
uint32_t mc_flags;
uint64_t mc_gstatus; /* global status */
};
/* contains bank local x86 mc information */
struct mcinfo_bank {
struct mcinfo_common common;
uint16_t mc_bank; /* bank nr */
uint16_t mc_domid; /* Usecase 5: domain referenced by mc_addr on dom0
* and if mc_addr is valid. Never valid on DomU. */
uint64_t mc_status; /* bank status */
uint64_t mc_addr; /* bank address, only valid
* if addr bit is set in mc_status */
uint64_t mc_misc;
uint64_t mc_ctrl2;
uint64_t mc_tsc;
};
struct mcinfo_msr {
uint64_t reg; /* MSR */
uint64_t value; /* MSR value */
};
/* contains mc information from other
* or additional mc MSRs */
struct mcinfo_extended {
struct mcinfo_common common;
/* You can fill up to five registers.
* If you need more, then use this structure
* multiple times. */
uint32_t mc_msrs; /* Number of msr with valid values. */
/*
* Currently Intel extended MSR (32/64) include all gp registers
* and E(R)FLAGS, E(R)IP, E(R)MISC, up to 11/19 of them might be
* useful at present. So expand this array to 16/32 to leave room.
*/
struct mcinfo_msr mc_msr[sizeof(void *) * 4];
};
/* Recovery Action flags. Giving recovery result information to DOM0 */
/* Xen takes successful recovery action, the error is recovered */
#define REC_ACTION_RECOVERED (0x1 << 0)
/* No action is performed by XEN */
#define REC_ACTION_NONE (0x1 << 1)
/* It's possible DOM0 might take action ownership in some case */
#define REC_ACTION_NEED_RESET (0x1 << 2)
/* Different Recovery Action types, if the action is performed successfully,
* REC_ACTION_RECOVERED flag will be returned.
*/
/* Page Offline Action */
#define MC_ACTION_PAGE_OFFLINE (0x1 << 0)
/* CPU offline Action */
#define MC_ACTION_CPU_OFFLINE (0x1 << 1)
/* L3 cache disable Action */
#define MC_ACTION_CACHE_SHRINK (0x1 << 2)
/* Below interface used between XEN/DOM0 for passing XEN's recovery action
* information to DOM0.
* usage Senario: After offlining broken page, XEN might pass its page offline
* recovery action result to DOM0. DOM0 will save the information in
* non-volatile memory for further proactive actions, such as offlining the
* easy broken page earlier when doing next reboot.
*/
struct page_offline_action
{
/* Params for passing the offlined page number to DOM0 */
uint64_t mfn;
uint64_t status;
};
struct cpu_offline_action
{
/* Params for passing the identity of the offlined CPU to DOM0 */
uint32_t mc_socketid;
uint16_t mc_coreid;
uint16_t mc_core_threadid;
};
#define MAX_UNION_SIZE 16
struct mcinfo_recovery
{
struct mcinfo_common common;
uint16_t mc_bank; /* bank nr */
uint8_t action_flags;
uint8_t action_types;
union {
struct page_offline_action page_retire;
struct cpu_offline_action cpu_offline;
uint8_t pad[MAX_UNION_SIZE];
} action_info;
};
#define MCINFO_HYPERCALLSIZE 1024
#define MCINFO_MAXSIZE 768
#define MCINFO_FLAGS_UNCOMPLETE 0x1
struct mc_info {
/* Number of mcinfo_* entries in mi_data */
uint32_t mi_nentries;
uint32_t flags;
uint64_t mi_data[(MCINFO_MAXSIZE - 1) / 8];
};
typedef struct mc_info mc_info_t;
DEFINE_XEN_GUEST_HANDLE(mc_info_t);
#define __MC_MSR_ARRAYSIZE 8
#define __MC_NMSRS 1
#define MC_NCAPS 7 /* 7 CPU feature flag words */
#define MC_CAPS_STD_EDX 0 /* cpuid level 0x00000001 (%edx) */
#define MC_CAPS_AMD_EDX 1 /* cpuid level 0x80000001 (%edx) */
#define MC_CAPS_TM 2 /* cpuid level 0x80860001 (TransMeta) */
#define MC_CAPS_LINUX 3 /* Linux-defined */
#define MC_CAPS_STD_ECX 4 /* cpuid level 0x00000001 (%ecx) */
#define MC_CAPS_VIA 5 /* cpuid level 0xc0000001 */
#define MC_CAPS_AMD_ECX 6 /* cpuid level 0x80000001 (%ecx) */
struct mcinfo_logical_cpu {
uint32_t mc_cpunr;
uint32_t mc_chipid;
uint16_t mc_coreid;
uint16_t mc_threadid;
uint32_t mc_apicid;
uint32_t mc_clusterid;
uint32_t mc_ncores;
uint32_t mc_ncores_active;
uint32_t mc_nthreads;
int32_t mc_cpuid_level;
uint32_t mc_family;
uint32_t mc_vendor;
uint32_t mc_model;
uint32_t mc_step;
char mc_vendorid[16];
char mc_brandid[64];
uint32_t mc_cpu_caps[MC_NCAPS];
uint32_t mc_cache_size;
uint32_t mc_cache_alignment;
int32_t mc_nmsrvals;
struct mcinfo_msr mc_msrvalues[__MC_MSR_ARRAYSIZE];
};
typedef struct mcinfo_logical_cpu xen_mc_logical_cpu_t;
DEFINE_XEN_GUEST_HANDLE(xen_mc_logical_cpu_t);
/*
* OS's should use these instead of writing their own lookup function
* each with its own bugs and drawbacks.
* We use macros instead of static inline functions to allow guests
* to include this header in assembly files (*.S).
*/
/* Prototype:
* uint32_t x86_mcinfo_nentries(struct mc_info *mi);
*/
#define x86_mcinfo_nentries(_mi) \
(_mi)->mi_nentries
/* Prototype:
* struct mcinfo_common *x86_mcinfo_first(struct mc_info *mi);
*/
#define x86_mcinfo_first(_mi) \
((struct mcinfo_common *)(_mi)->mi_data)
/* Prototype:
* struct mcinfo_common *x86_mcinfo_next(struct mcinfo_common *mic);
*/
#define x86_mcinfo_next(_mic) \
((struct mcinfo_common *)((uint8_t *)(_mic) + (_mic)->size))
/* Prototype:
* void x86_mcinfo_lookup(void *ret, struct mc_info *mi, uint16_t type);
*/
#define x86_mcinfo_lookup(_ret, _mi, _type) \
do { \
uint32_t found, i; \
struct mcinfo_common *_mic; \
\
found = 0; \
(_ret) = NULL; \
if (_mi == NULL) break; \
_mic = x86_mcinfo_first(_mi); \
for (i = 0; i < x86_mcinfo_nentries(_mi); i++) { \
if (_mic->type == (_type)) { \
found = 1; \
break; \
} \
_mic = x86_mcinfo_next(_mic); \
} \
(_ret) = found ? _mic : NULL; \
} while (0)
/* Usecase 1
* Register machine check trap callback handler
* (already done via "set_trap_table" hypercall)
*/
/* Usecase 2
* Dom0 registers machine check event callback handler
* done by EVTCHNOP_bind_virq
*/
/* Usecase 3
* Fetch machine check data from hypervisor.
* Note, this hypercall is special, because both Dom0 and DomU must use this.
*/
#define XEN_MC_fetch 1
struct xen_mc_fetch {
/* IN/OUT variables. */
uint32_t flags; /* IN: XEN_MC_NONURGENT, XEN_MC_URGENT,
XEN_MC_ACK if ack'ing an earlier fetch */
/* OUT: XEN_MC_OK, XEN_MC_FETCHFAILED,
XEN_MC_NODATA, XEN_MC_NOMATCH */
uint32_t _pad0;
uint64_t fetch_id; /* OUT: id for ack, IN: id we are ack'ing */
/* OUT variables. */
XEN_GUEST_HANDLE(mc_info_t) data;
};
typedef struct xen_mc_fetch xen_mc_fetch_t;
DEFINE_XEN_GUEST_HANDLE(xen_mc_fetch_t);
/* Usecase 4
* This tells the hypervisor to notify a DomU about the machine check error
*/
#define XEN_MC_notifydomain 2
struct xen_mc_notifydomain {
/* IN variables. */
uint16_t mc_domid; /* The unprivileged domain to notify. */
uint16_t mc_vcpuid; /* The vcpu in mc_domid to notify.
* Usually echo'd value from the fetch hypercall. */
/* IN/OUT variables. */
uint32_t flags;
/* IN: XEN_MC_CORRECTABLE, XEN_MC_TRAP */
/* OUT: XEN_MC_OK, XEN_MC_CANNOTHANDLE, XEN_MC_NOTDELIVERED, XEN_MC_NOMATCH */
};
typedef struct xen_mc_notifydomain xen_mc_notifydomain_t;
DEFINE_XEN_GUEST_HANDLE(xen_mc_notifydomain_t);
#define XEN_MC_physcpuinfo 3
struct xen_mc_physcpuinfo {
/* IN/OUT */
uint32_t ncpus;
uint32_t _pad0;
/* OUT */
XEN_GUEST_HANDLE(xen_mc_logical_cpu_t) info;
};
#define XEN_MC_msrinject 4
#define MC_MSRINJ_MAXMSRS 8
struct xen_mc_msrinject {
/* IN */
uint32_t mcinj_cpunr; /* target processor id */
uint32_t mcinj_flags; /* see MC_MSRINJ_F_* below */
uint32_t mcinj_count; /* 0 .. count-1 in array are valid */
uint32_t _pad0;
struct mcinfo_msr mcinj_msr[MC_MSRINJ_MAXMSRS];
};
/* Flags for mcinj_flags above; bits 16-31 are reserved */
#define MC_MSRINJ_F_INTERPOSE 0x1
#define XEN_MC_mceinject 5
struct xen_mc_mceinject {
unsigned int mceinj_cpunr; /* target processor id */
};
#if defined(__XEN__) || defined(__XEN_TOOLS__)
#define XEN_MC_inject_v2 6
#define XEN_MC_INJECT_TYPE_MASK 0x7
#define XEN_MC_INJECT_TYPE_MCE 0x0
#define XEN_MC_INJECT_TYPE_CMCI 0x1
#define XEN_MC_INJECT_CPU_BROADCAST 0x8
struct xen_mc_inject_v2 {
uint32_t flags;
struct xenctl_bitmap cpumap;
};
#endif
struct xen_mc {
uint32_t cmd;
uint32_t interface_version; /* XEN_MCA_INTERFACE_VERSION */
union {
struct xen_mc_fetch mc_fetch;
struct xen_mc_notifydomain mc_notifydomain;
struct xen_mc_physcpuinfo mc_physcpuinfo;
struct xen_mc_msrinject mc_msrinject;
struct xen_mc_mceinject mc_mceinject;
#if defined(__XEN__) || defined(__XEN_TOOLS__)
struct xen_mc_inject_v2 mc_inject_v2;
#endif
} u;
};
typedef struct xen_mc xen_mc_t;
DEFINE_XEN_GUEST_HANDLE(xen_mc_t);
#endif /* __ASSEMBLY__ */
#endif /* __XEN_PUBLIC_ARCH_X86_MCA_H__ */

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/******************************************************************************
* xen-x86_32.h
*
* Guest OS interface to x86 32-bit Xen.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2004-2007, K A Fraser
*/
#ifndef __XEN_PUBLIC_ARCH_X86_XEN_X86_32_H__
#define __XEN_PUBLIC_ARCH_X86_XEN_X86_32_H__
/*
* Hypercall interface:
* Input: %ebx, %ecx, %edx, %esi, %edi, %ebp (arguments 1-6)
* Output: %eax
* Access is via hypercall page (set up by guest loader or via a Xen MSR):
* call hypercall_page + hypercall-number * 32
* Clobbered: Argument registers (e.g., 2-arg hypercall clobbers %ebx,%ecx)
*/
/*
* These flat segments are in the Xen-private section of every GDT. Since these
* are also present in the initial GDT, many OSes will be able to avoid
* installing their own GDT.
*/
#define FLAT_RING1_CS 0xe019 /* GDT index 259 */
#define FLAT_RING1_DS 0xe021 /* GDT index 260 */
#define FLAT_RING1_SS 0xe021 /* GDT index 260 */
#define FLAT_RING3_CS 0xe02b /* GDT index 261 */
#define FLAT_RING3_DS 0xe033 /* GDT index 262 */
#define FLAT_RING3_SS 0xe033 /* GDT index 262 */
#define FLAT_KERNEL_CS FLAT_RING1_CS
#define FLAT_KERNEL_DS FLAT_RING1_DS
#define FLAT_KERNEL_SS FLAT_RING1_SS
#define FLAT_USER_CS FLAT_RING3_CS
#define FLAT_USER_DS FLAT_RING3_DS
#define FLAT_USER_SS FLAT_RING3_SS
#define __HYPERVISOR_VIRT_START_PAE 0xF5800000
#define __MACH2PHYS_VIRT_START_PAE 0xF5800000
#define __MACH2PHYS_VIRT_END_PAE 0xF6800000
#define HYPERVISOR_VIRT_START_PAE \
mk_unsigned_long(__HYPERVISOR_VIRT_START_PAE)
#define MACH2PHYS_VIRT_START_PAE \
mk_unsigned_long(__MACH2PHYS_VIRT_START_PAE)
#define MACH2PHYS_VIRT_END_PAE \
mk_unsigned_long(__MACH2PHYS_VIRT_END_PAE)
/* Non-PAE bounds are obsolete. */
#define __HYPERVISOR_VIRT_START_NONPAE 0xFC000000
#define __MACH2PHYS_VIRT_START_NONPAE 0xFC000000
#define __MACH2PHYS_VIRT_END_NONPAE 0xFC400000
#define HYPERVISOR_VIRT_START_NONPAE \
mk_unsigned_long(__HYPERVISOR_VIRT_START_NONPAE)
#define MACH2PHYS_VIRT_START_NONPAE \
mk_unsigned_long(__MACH2PHYS_VIRT_START_NONPAE)
#define MACH2PHYS_VIRT_END_NONPAE \
mk_unsigned_long(__MACH2PHYS_VIRT_END_NONPAE)
#define __HYPERVISOR_VIRT_START __HYPERVISOR_VIRT_START_PAE
#define __MACH2PHYS_VIRT_START __MACH2PHYS_VIRT_START_PAE
#define __MACH2PHYS_VIRT_END __MACH2PHYS_VIRT_END_PAE
#ifndef HYPERVISOR_VIRT_START
#define HYPERVISOR_VIRT_START mk_unsigned_long(__HYPERVISOR_VIRT_START)
#endif
#define MACH2PHYS_VIRT_START mk_unsigned_long(__MACH2PHYS_VIRT_START)
#define MACH2PHYS_VIRT_END mk_unsigned_long(__MACH2PHYS_VIRT_END)
#define MACH2PHYS_NR_ENTRIES ((MACH2PHYS_VIRT_END-MACH2PHYS_VIRT_START)>>2)
#ifndef machine_to_phys_mapping
#define machine_to_phys_mapping ((unsigned long *)MACH2PHYS_VIRT_START)
#endif
/* 32-/64-bit invariability for control interfaces (domctl/sysctl). */
#if defined(__XEN__) || defined(__XEN_TOOLS__)
#undef ___DEFINE_XEN_GUEST_HANDLE
#define ___DEFINE_XEN_GUEST_HANDLE(name, type) \
typedef struct { type *p; } \
__guest_handle_ ## name; \
typedef struct { union { type *p; uint64_aligned_t q; }; } \
__guest_handle_64_ ## name
#undef set_xen_guest_handle_raw
#define set_xen_guest_handle_raw(hnd, val) \
do { if ( sizeof(hnd) == 8 ) *(uint64_t *)&(hnd) = 0; \
(hnd).p = val; \
} while ( 0 )
#define uint64_aligned_t uint64_t __attribute__((aligned(8)))
#define __XEN_GUEST_HANDLE_64(name) __guest_handle_64_ ## name
#define XEN_GUEST_HANDLE_64(name) __XEN_GUEST_HANDLE_64(name)
#endif
#ifndef __ASSEMBLY__
struct cpu_user_regs {
uint32_t ebx;
uint32_t ecx;
uint32_t edx;
uint32_t esi;
uint32_t edi;
uint32_t ebp;
uint32_t eax;
uint16_t error_code; /* private */
uint16_t entry_vector; /* private */
uint32_t eip;
uint16_t cs;
uint8_t saved_upcall_mask;
uint8_t _pad0;
uint32_t eflags; /* eflags.IF == !saved_upcall_mask */
uint32_t esp;
uint16_t ss, _pad1;
uint16_t es, _pad2;
uint16_t ds, _pad3;
uint16_t fs, _pad4;
uint16_t gs, _pad5;
};
typedef struct cpu_user_regs cpu_user_regs_t;
DEFINE_XEN_GUEST_HANDLE(cpu_user_regs_t);
/*
* Page-directory addresses above 4GB do not fit into architectural %cr3.
* When accessing %cr3, or equivalent field in vcpu_guest_context, guests
* must use the following accessor macros to pack/unpack valid MFNs.
*/
#define xen_pfn_to_cr3(pfn) (((unsigned)(pfn) << 12) | ((unsigned)(pfn) >> 20))
#define xen_cr3_to_pfn(cr3) (((unsigned)(cr3) >> 12) | ((unsigned)(cr3) << 20))
struct arch_vcpu_info {
unsigned long cr2;
unsigned long pad[5]; /* sizeof(vcpu_info_t) == 64 */
};
typedef struct arch_vcpu_info arch_vcpu_info_t;
struct xen_callback {
unsigned long cs;
unsigned long eip;
};
typedef struct xen_callback xen_callback_t;
#endif /* !__ASSEMBLY__ */
#endif /* __XEN_PUBLIC_ARCH_X86_XEN_X86_32_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* xen-x86_64.h
*
* Guest OS interface to x86 64-bit Xen.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2004-2006, K A Fraser
*/
#ifndef __XEN_PUBLIC_ARCH_X86_XEN_X86_64_H__
#define __XEN_PUBLIC_ARCH_X86_XEN_X86_64_H__
/*
* Hypercall interface:
* Input: %rdi, %rsi, %rdx, %r10, %r8, %r9 (arguments 1-6)
* Output: %rax
* Access is via hypercall page (set up by guest loader or via a Xen MSR):
* call hypercall_page + hypercall-number * 32
* Clobbered: argument registers (e.g., 2-arg hypercall clobbers %rdi,%rsi)
*/
/*
* 64-bit segment selectors
* These flat segments are in the Xen-private section of every GDT. Since these
* are also present in the initial GDT, many OSes will be able to avoid
* installing their own GDT.
*/
#define FLAT_RING3_CS32 0xe023 /* GDT index 260 */
#define FLAT_RING3_CS64 0xe033 /* GDT index 261 */
#define FLAT_RING3_DS32 0xe02b /* GDT index 262 */
#define FLAT_RING3_DS64 0x0000 /* NULL selector */
#define FLAT_RING3_SS32 0xe02b /* GDT index 262 */
#define FLAT_RING3_SS64 0xe02b /* GDT index 262 */
#define FLAT_KERNEL_DS64 FLAT_RING3_DS64
#define FLAT_KERNEL_DS32 FLAT_RING3_DS32
#define FLAT_KERNEL_DS FLAT_KERNEL_DS64
#define FLAT_KERNEL_CS64 FLAT_RING3_CS64
#define FLAT_KERNEL_CS32 FLAT_RING3_CS32
#define FLAT_KERNEL_CS FLAT_KERNEL_CS64
#define FLAT_KERNEL_SS64 FLAT_RING3_SS64
#define FLAT_KERNEL_SS32 FLAT_RING3_SS32
#define FLAT_KERNEL_SS FLAT_KERNEL_SS64
#define FLAT_USER_DS64 FLAT_RING3_DS64
#define FLAT_USER_DS32 FLAT_RING3_DS32
#define FLAT_USER_DS FLAT_USER_DS64
#define FLAT_USER_CS64 FLAT_RING3_CS64
#define FLAT_USER_CS32 FLAT_RING3_CS32
#define FLAT_USER_CS FLAT_USER_CS64
#define FLAT_USER_SS64 FLAT_RING3_SS64
#define FLAT_USER_SS32 FLAT_RING3_SS32
#define FLAT_USER_SS FLAT_USER_SS64
#define __HYPERVISOR_VIRT_START 0xFFFF800000000000
#define __HYPERVISOR_VIRT_END 0xFFFF880000000000
#define __MACH2PHYS_VIRT_START 0xFFFF800000000000
#define __MACH2PHYS_VIRT_END 0xFFFF804000000000
#ifndef HYPERVISOR_VIRT_START
#define HYPERVISOR_VIRT_START mk_unsigned_long(__HYPERVISOR_VIRT_START)
#define HYPERVISOR_VIRT_END mk_unsigned_long(__HYPERVISOR_VIRT_END)
#endif
#define MACH2PHYS_VIRT_START mk_unsigned_long(__MACH2PHYS_VIRT_START)
#define MACH2PHYS_VIRT_END mk_unsigned_long(__MACH2PHYS_VIRT_END)
#define MACH2PHYS_NR_ENTRIES ((MACH2PHYS_VIRT_END-MACH2PHYS_VIRT_START)>>3)
#ifndef machine_to_phys_mapping
#define machine_to_phys_mapping ((unsigned long *)HYPERVISOR_VIRT_START)
#endif
/*
* int HYPERVISOR_set_segment_base(unsigned int which, unsigned long base)
* @which == SEGBASE_* ; @base == 64-bit base address
* Returns 0 on success.
*/
#define SEGBASE_FS 0
#define SEGBASE_GS_USER 1
#define SEGBASE_GS_KERNEL 2
#define SEGBASE_GS_USER_SEL 3 /* Set user %gs specified in base[15:0] */
/*
* int HYPERVISOR_iret(void)
* All arguments are on the kernel stack, in the following format.
* Never returns if successful. Current kernel context is lost.
* The saved CS is mapped as follows:
* RING0 -> RING3 kernel mode.
* RING1 -> RING3 kernel mode.
* RING2 -> RING3 kernel mode.
* RING3 -> RING3 user mode.
* However RING0 indicates that the guest kernel should return to iteself
* directly with
* orb $3,1*8(%rsp)
* iretq
* If flags contains VGCF_in_syscall:
* Restore RAX, RIP, RFLAGS, RSP.
* Discard R11, RCX, CS, SS.
* Otherwise:
* Restore RAX, R11, RCX, CS:RIP, RFLAGS, SS:RSP.
* All other registers are saved on hypercall entry and restored to user.
*/
/* Guest exited in SYSCALL context? Return to guest with SYSRET? */
#define _VGCF_in_syscall 8
#define VGCF_in_syscall (1<<_VGCF_in_syscall)
#define VGCF_IN_SYSCALL VGCF_in_syscall
#ifndef __ASSEMBLY__
struct iret_context {
/* Top of stack (%rsp at point of hypercall). */
uint64_t rax, r11, rcx, flags, rip, cs, rflags, rsp, ss;
/* Bottom of iret stack frame. */
};
#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
/* Anonymous union includes both 32- and 64-bit names (e.g., eax/rax). */
#define __DECL_REG(name) union { \
uint64_t r ## name, e ## name; \
uint32_t _e ## name; \
}
#else
/* Non-gcc sources must always use the proper 64-bit name (e.g., rax). */
#define __DECL_REG(name) uint64_t r ## name
#endif
struct cpu_user_regs {
uint64_t r15;
uint64_t r14;
uint64_t r13;
uint64_t r12;
__DECL_REG(bp);
__DECL_REG(bx);
uint64_t r11;
uint64_t r10;
uint64_t r9;
uint64_t r8;
__DECL_REG(ax);
__DECL_REG(cx);
__DECL_REG(dx);
__DECL_REG(si);
__DECL_REG(di);
uint32_t error_code; /* private */
uint32_t entry_vector; /* private */
__DECL_REG(ip);
uint16_t cs, _pad0[1];
uint8_t saved_upcall_mask;
uint8_t _pad1[3];
__DECL_REG(flags); /* rflags.IF == !saved_upcall_mask */
__DECL_REG(sp);
uint16_t ss, _pad2[3];
uint16_t es, _pad3[3];
uint16_t ds, _pad4[3];
uint16_t fs, _pad5[3]; /* Non-zero => takes precedence over fs_base. */
uint16_t gs, _pad6[3]; /* Non-zero => takes precedence over gs_base_usr. */
};
typedef struct cpu_user_regs cpu_user_regs_t;
DEFINE_XEN_GUEST_HANDLE(cpu_user_regs_t);
#undef __DECL_REG
#define xen_pfn_to_cr3(pfn) ((unsigned long)(pfn) << 12)
#define xen_cr3_to_pfn(cr3) ((unsigned long)(cr3) >> 12)
struct arch_vcpu_info {
unsigned long cr2;
unsigned long pad; /* sizeof(vcpu_info_t) == 64 */
};
typedef struct arch_vcpu_info arch_vcpu_info_t;
typedef unsigned long xen_callback_t;
#endif /* !__ASSEMBLY__ */
#endif /* __XEN_PUBLIC_ARCH_X86_XEN_X86_64_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* arch-x86/xen.h
*
* Guest OS interface to x86 Xen.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2004-2006, K A Fraser
*/
#include "../xen.h"
#ifndef __XEN_PUBLIC_ARCH_X86_XEN_H__
#define __XEN_PUBLIC_ARCH_X86_XEN_H__
/* Structural guest handles introduced in 0x00030201. */
#if __XEN_INTERFACE_VERSION__ >= 0x00030201
#define ___DEFINE_XEN_GUEST_HANDLE(name, type) \
typedef struct { type *p; } __guest_handle_ ## name
#else
#define ___DEFINE_XEN_GUEST_HANDLE(name, type) \
typedef type * __guest_handle_ ## name
#endif
/*
* XEN_GUEST_HANDLE represents a guest pointer, when passed as a field
* in a struct in memory.
* XEN_GUEST_HANDLE_PARAM represent a guest pointer, when passed as an
* hypercall argument.
* XEN_GUEST_HANDLE_PARAM and XEN_GUEST_HANDLE are the same on X86 but
* they might not be on other architectures.
*/
#define __DEFINE_XEN_GUEST_HANDLE(name, type) \
___DEFINE_XEN_GUEST_HANDLE(name, type); \
___DEFINE_XEN_GUEST_HANDLE(const_##name, const type)
#define DEFINE_XEN_GUEST_HANDLE(name) __DEFINE_XEN_GUEST_HANDLE(name, name)
#define __XEN_GUEST_HANDLE(name) __guest_handle_ ## name
#define XEN_GUEST_HANDLE(name) __XEN_GUEST_HANDLE(name)
#define XEN_GUEST_HANDLE_PARAM(name) XEN_GUEST_HANDLE(name)
#define set_xen_guest_handle_raw(hnd, val) do { (hnd).p = val; } while (0)
#ifdef __XEN_TOOLS__
#define get_xen_guest_handle(val, hnd) do { val = (hnd).p; } while (0)
#endif
#define set_xen_guest_handle(hnd, val) set_xen_guest_handle_raw(hnd, val)
#if defined(__i386__)
#include "xen-x86_32.h"
#elif defined(__x86_64__)
#include "xen-x86_64.h"
#endif
#ifndef __ASSEMBLY__
typedef unsigned long xen_pfn_t;
#define PRI_xen_pfn "lx"
#endif
/*
* `incontents 200 segdesc Segment Descriptor Tables
*/
/*
* ` enum neg_errnoval
* ` HYPERVISOR_set_gdt(const xen_pfn_t frames[], unsigned int entries);
* `
*/
/*
* A number of GDT entries are reserved by Xen. These are not situated at the
* start of the GDT because some stupid OSes export hard-coded selector values
* in their ABI. These hard-coded values are always near the start of the GDT,
* so Xen places itself out of the way, at the far end of the GDT.
*
* NB The LDT is set using the MMUEXT_SET_LDT op of HYPERVISOR_mmuext_op
*/
#define FIRST_RESERVED_GDT_PAGE 14
#define FIRST_RESERVED_GDT_BYTE (FIRST_RESERVED_GDT_PAGE * 4096)
#define FIRST_RESERVED_GDT_ENTRY (FIRST_RESERVED_GDT_BYTE / 8)
/*
* ` enum neg_errnoval
* ` HYPERVISOR_update_descriptor(u64 pa, u64 desc);
* `
* ` @pa The machine physical address of the descriptor to
* ` update. Must be either a descriptor page or writable.
* ` @desc The descriptor value to update, in the same format as a
* ` native descriptor table entry.
*/
/* Maximum number of virtual CPUs in legacy multi-processor guests. */
#define XEN_LEGACY_MAX_VCPUS 32
#ifndef __ASSEMBLY__
typedef unsigned long xen_ulong_t;
#define PRI_xen_ulong "lx"
/*
* ` enum neg_errnoval
* ` HYPERVISOR_stack_switch(unsigned long ss, unsigned long esp);
* `
* Sets the stack segment and pointer for the current vcpu.
*/
/*
* ` enum neg_errnoval
* ` HYPERVISOR_set_trap_table(const struct trap_info traps[]);
* `
*/
/*
* Send an array of these to HYPERVISOR_set_trap_table().
* Terminate the array with a sentinel entry, with traps[].address==0.
* The privilege level specifies which modes may enter a trap via a software
* interrupt. On x86/64, since rings 1 and 2 are unavailable, we allocate
* privilege levels as follows:
* Level == 0: Noone may enter
* Level == 1: Kernel may enter
* Level == 2: Kernel may enter
* Level == 3: Everyone may enter
*/
#define TI_GET_DPL(_ti) ((_ti)->flags & 3)
#define TI_GET_IF(_ti) ((_ti)->flags & 4)
#define TI_SET_DPL(_ti,_dpl) ((_ti)->flags |= (_dpl))
#define TI_SET_IF(_ti,_if) ((_ti)->flags |= ((!!(_if))<<2))
struct trap_info {
uint8_t vector; /* exception vector */
uint8_t flags; /* 0-3: privilege level; 4: clear event enable? */
uint16_t cs; /* code selector */
unsigned long address; /* code offset */
};
typedef struct trap_info trap_info_t;
DEFINE_XEN_GUEST_HANDLE(trap_info_t);
typedef uint64_t tsc_timestamp_t; /* RDTSC timestamp */
/*
* The following is all CPU context. Note that the fpu_ctxt block is filled
* in by FXSAVE if the CPU has feature FXSR; otherwise FSAVE is used.
*/
struct vcpu_guest_context {
/* FPU registers come first so they can be aligned for FXSAVE/FXRSTOR. */
struct { char x[512]; } fpu_ctxt; /* User-level FPU registers */
#define VGCF_I387_VALID (1<<0)
#define VGCF_IN_KERNEL (1<<2)
#define _VGCF_i387_valid 0
#define VGCF_i387_valid (1<<_VGCF_i387_valid)
#define _VGCF_in_kernel 2
#define VGCF_in_kernel (1<<_VGCF_in_kernel)
#define _VGCF_failsafe_disables_events 3
#define VGCF_failsafe_disables_events (1<<_VGCF_failsafe_disables_events)
#define _VGCF_syscall_disables_events 4
#define VGCF_syscall_disables_events (1<<_VGCF_syscall_disables_events)
#define _VGCF_online 5
#define VGCF_online (1<<_VGCF_online)
unsigned long flags; /* VGCF_* flags */
struct cpu_user_regs user_regs; /* User-level CPU registers */
struct trap_info trap_ctxt[256]; /* Virtual IDT */
unsigned long ldt_base, ldt_ents; /* LDT (linear address, # ents) */
unsigned long gdt_frames[16], gdt_ents; /* GDT (machine frames, # ents) */
unsigned long kernel_ss, kernel_sp; /* Virtual TSS (only SS1/SP1) */
/* NB. User pagetable on x86/64 is placed in ctrlreg[1]. */
unsigned long ctrlreg[8]; /* CR0-CR7 (control registers) */
unsigned long debugreg[8]; /* DB0-DB7 (debug registers) */
#ifdef __i386__
unsigned long event_callback_cs; /* CS:EIP of event callback */
unsigned long event_callback_eip;
unsigned long failsafe_callback_cs; /* CS:EIP of failsafe callback */
unsigned long failsafe_callback_eip;
#else
unsigned long event_callback_eip;
unsigned long failsafe_callback_eip;
#ifdef __XEN__
union {
unsigned long syscall_callback_eip;
struct {
unsigned int event_callback_cs; /* compat CS of event cb */
unsigned int failsafe_callback_cs; /* compat CS of failsafe cb */
};
};
#else
unsigned long syscall_callback_eip;
#endif
#endif
unsigned long vm_assist; /* VMASST_TYPE_* bitmap */
#ifdef __x86_64__
/* Segment base addresses. */
uint64_t fs_base;
uint64_t gs_base_kernel;
uint64_t gs_base_user;
#endif
};
typedef struct vcpu_guest_context vcpu_guest_context_t;
DEFINE_XEN_GUEST_HANDLE(vcpu_guest_context_t);
struct arch_shared_info {
unsigned long max_pfn; /* max pfn that appears in table */
/* Frame containing list of mfns containing list of mfns containing p2m. */
xen_pfn_t pfn_to_mfn_frame_list_list;
unsigned long nmi_reason;
uint64_t pad[32];
};
typedef struct arch_shared_info arch_shared_info_t;
#endif /* !__ASSEMBLY__ */
/*
* ` enum neg_errnoval
* ` HYPERVISOR_fpu_taskswitch(int set);
* `
* Sets (if set!=0) or clears (if set==0) CR0.TS.
*/
/*
* ` enum neg_errnoval
* ` HYPERVISOR_set_debugreg(int regno, unsigned long value);
*
* ` unsigned long
* ` HYPERVISOR_get_debugreg(int regno);
* For 0<=reg<=7, returns the debug register value.
* For other values of reg, returns ((unsigned long)-EINVAL).
* (Unfortunately, this interface is defective.)
*/
/*
* Prefix forces emulation of some non-trapping instructions.
* Currently only CPUID.
*/
#ifdef __ASSEMBLY__
#define XEN_EMULATE_PREFIX .byte 0x0f,0x0b,0x78,0x65,0x6e ;
#define XEN_CPUID XEN_EMULATE_PREFIX cpuid
#else
#define XEN_EMULATE_PREFIX ".byte 0x0f,0x0b,0x78,0x65,0x6e ; "
#define XEN_CPUID XEN_EMULATE_PREFIX "cpuid"
#endif
#endif /* __XEN_PUBLIC_ARCH_X86_XEN_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* arch-x86_32.h
*
* Guest OS interface to x86 32-bit Xen.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2004-2006, K A Fraser
*/
#include "arch-x86/xen.h"

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/******************************************************************************
* arch-x86_64.h
*
* Guest OS interface to x86 64-bit Xen.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2004-2006, K A Fraser
*/
#include "arch-x86/xen.h"
/*
* ` enum neg_errnoval
* ` HYPERVISOR_set_callbacks(unsigned long event_selector,
* ` unsigned long event_address,
* ` unsigned long failsafe_selector,
* ` unsigned long failsafe_address);
* `
* Register for callbacks on events. When an event (from an event
* channel) occurs, event_address is used as the value of eip.
*
* A similar callback occurs if the segment selectors are invalid.
* failsafe_address is used as the value of eip.
*
* On x86_64, event_selector and failsafe_selector are ignored (???).
*/

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/******************************************************************************
* callback.h
*
* Register guest OS callbacks with Xen.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2006, Ian Campbell
*/
#ifndef __XEN_PUBLIC_CALLBACK_H__
#define __XEN_PUBLIC_CALLBACK_H__
#include "xen.h"
/*
* Prototype for this hypercall is:
* long callback_op(int cmd, void *extra_args)
* @cmd == CALLBACKOP_??? (callback operation).
* @extra_args == Operation-specific extra arguments (NULL if none).
*/
/* x86: Callback for event delivery. */
#define CALLBACKTYPE_event 0
/* x86: Failsafe callback when guest state cannot be restored by Xen. */
#define CALLBACKTYPE_failsafe 1
/* x86/64 hypervisor: Syscall by 64-bit guest app ('64-on-64-on-64'). */
#define CALLBACKTYPE_syscall 2
/*
* x86/32 hypervisor: Only available on x86/32 when supervisor_mode_kernel
* feature is enabled. Do not use this callback type in new code.
*/
#define CALLBACKTYPE_sysenter_deprecated 3
/* x86: Callback for NMI delivery. */
#define CALLBACKTYPE_nmi 4
/*
* x86: sysenter is only available as follows:
* - 32-bit hypervisor: with the supervisor_mode_kernel feature enabled
* - 64-bit hypervisor: 32-bit guest applications on Intel CPUs
* ('32-on-32-on-64', '32-on-64-on-64')
* [nb. also 64-bit guest applications on Intel CPUs
* ('64-on-64-on-64'), but syscall is preferred]
*/
#define CALLBACKTYPE_sysenter 5
/*
* x86/64 hypervisor: Syscall by 32-bit guest app on AMD CPUs
* ('32-on-32-on-64', '32-on-64-on-64')
*/
#define CALLBACKTYPE_syscall32 7
/*
* Disable event deliver during callback? This flag is ignored for event and
* NMI callbacks: event delivery is unconditionally disabled.
*/
#define _CALLBACKF_mask_events 0
#define CALLBACKF_mask_events (1U << _CALLBACKF_mask_events)
/*
* Register a callback.
*/
#define CALLBACKOP_register 0
struct callback_register {
uint16_t type;
uint16_t flags;
xen_callback_t address;
};
typedef struct callback_register callback_register_t;
DEFINE_XEN_GUEST_HANDLE(callback_register_t);
/*
* Unregister a callback.
*
* Not all callbacks can be unregistered. -EINVAL will be returned if
* you attempt to unregister such a callback.
*/
#define CALLBACKOP_unregister 1
struct callback_unregister {
uint16_t type;
uint16_t _unused;
};
typedef struct callback_unregister callback_unregister_t;
DEFINE_XEN_GUEST_HANDLE(callback_unregister_t);
#if __XEN_INTERFACE_VERSION__ < 0x00030207
#undef CALLBACKTYPE_sysenter
#define CALLBACKTYPE_sysenter CALLBACKTYPE_sysenter_deprecated
#endif
#endif /* __XEN_PUBLIC_CALLBACK_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* dom0_ops.h
*
* Process command requests from domain-0 guest OS.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2002-2003, B Dragovic
* Copyright (c) 2002-2006, K Fraser
*/
#ifndef __XEN_PUBLIC_DOM0_OPS_H__
#define __XEN_PUBLIC_DOM0_OPS_H__
#include "xen.h"
#include "platform.h"
#if __XEN_INTERFACE_VERSION__ >= 0x00030204
#error "dom0_ops.h is a compatibility interface only"
#endif
#define DOM0_INTERFACE_VERSION XENPF_INTERFACE_VERSION
#define DOM0_SETTIME XENPF_settime
#define dom0_settime xenpf_settime
#define dom0_settime_t xenpf_settime_t
#define DOM0_ADD_MEMTYPE XENPF_add_memtype
#define dom0_add_memtype xenpf_add_memtype
#define dom0_add_memtype_t xenpf_add_memtype_t
#define DOM0_DEL_MEMTYPE XENPF_del_memtype
#define dom0_del_memtype xenpf_del_memtype
#define dom0_del_memtype_t xenpf_del_memtype_t
#define DOM0_READ_MEMTYPE XENPF_read_memtype
#define dom0_read_memtype xenpf_read_memtype
#define dom0_read_memtype_t xenpf_read_memtype_t
#define DOM0_MICROCODE XENPF_microcode_update
#define dom0_microcode xenpf_microcode_update
#define dom0_microcode_t xenpf_microcode_update_t
#define DOM0_PLATFORM_QUIRK XENPF_platform_quirk
#define dom0_platform_quirk xenpf_platform_quirk
#define dom0_platform_quirk_t xenpf_platform_quirk_t
typedef uint64_t cpumap_t;
/* Unsupported legacy operation -- defined for API compatibility. */
#define DOM0_MSR 15
struct dom0_msr {
/* IN variables. */
uint32_t write;
cpumap_t cpu_mask;
uint32_t msr;
uint32_t in1;
uint32_t in2;
/* OUT variables. */
uint32_t out1;
uint32_t out2;
};
typedef struct dom0_msr dom0_msr_t;
DEFINE_XEN_GUEST_HANDLE(dom0_msr_t);
/* Unsupported legacy operation -- defined for API compatibility. */
#define DOM0_PHYSICAL_MEMORY_MAP 40
struct dom0_memory_map_entry {
uint64_t start, end;
uint32_t flags; /* reserved */
uint8_t is_ram;
};
typedef struct dom0_memory_map_entry dom0_memory_map_entry_t;
DEFINE_XEN_GUEST_HANDLE(dom0_memory_map_entry_t);
struct dom0_op {
uint32_t cmd;
uint32_t interface_version; /* DOM0_INTERFACE_VERSION */
union {
struct dom0_msr msr;
struct dom0_settime settime;
struct dom0_add_memtype add_memtype;
struct dom0_del_memtype del_memtype;
struct dom0_read_memtype read_memtype;
struct dom0_microcode microcode;
struct dom0_platform_quirk platform_quirk;
struct dom0_memory_map_entry physical_memory_map;
uint8_t pad[128];
} u;
};
typedef struct dom0_op dom0_op_t;
DEFINE_XEN_GUEST_HANDLE(dom0_op_t);
#endif /* __XEN_PUBLIC_DOM0_OPS_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* domctl.h
*
* Domain management operations. For use by node control stack.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2002-2003, B Dragovic
* Copyright (c) 2002-2006, K Fraser
*/
#ifndef __XEN_PUBLIC_DOMCTL_H__
#define __XEN_PUBLIC_DOMCTL_H__
#if !defined(__XEN__) && !defined(__XEN_TOOLS__)
#error "domctl operations are intended for use by node control tools only"
#endif
#include "xen.h"
#include "grant_table.h"
#include "hvm/save.h"
#define XEN_DOMCTL_INTERFACE_VERSION 0x00000009
/*
* NB. xen_domctl.domain is an IN/OUT parameter for this operation.
* If it is specified as zero, an id is auto-allocated and returned.
*/
/* XEN_DOMCTL_createdomain */
struct xen_domctl_createdomain {
/* IN parameters */
uint32_t ssidref;
xen_domain_handle_t handle;
/* Is this an HVM guest (as opposed to a PV guest)? */
#define _XEN_DOMCTL_CDF_hvm_guest 0
#define XEN_DOMCTL_CDF_hvm_guest (1U<<_XEN_DOMCTL_CDF_hvm_guest)
/* Use hardware-assisted paging if available? */
#define _XEN_DOMCTL_CDF_hap 1
#define XEN_DOMCTL_CDF_hap (1U<<_XEN_DOMCTL_CDF_hap)
/* Should domain memory integrity be verifed by tboot during Sx? */
#define _XEN_DOMCTL_CDF_s3_integrity 2
#define XEN_DOMCTL_CDF_s3_integrity (1U<<_XEN_DOMCTL_CDF_s3_integrity)
/* Disable out-of-sync shadow page tables? */
#define _XEN_DOMCTL_CDF_oos_off 3
#define XEN_DOMCTL_CDF_oos_off (1U<<_XEN_DOMCTL_CDF_oos_off)
uint32_t flags;
};
typedef struct xen_domctl_createdomain xen_domctl_createdomain_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_createdomain_t);
/* XEN_DOMCTL_getdomaininfo */
struct xen_domctl_getdomaininfo {
/* OUT variables. */
domid_t domain; /* Also echoed in domctl.domain */
/* Domain is scheduled to die. */
#define _XEN_DOMINF_dying 0
#define XEN_DOMINF_dying (1U<<_XEN_DOMINF_dying)
/* Domain is an HVM guest (as opposed to a PV guest). */
#define _XEN_DOMINF_hvm_guest 1
#define XEN_DOMINF_hvm_guest (1U<<_XEN_DOMINF_hvm_guest)
/* The guest OS has shut down. */
#define _XEN_DOMINF_shutdown 2
#define XEN_DOMINF_shutdown (1U<<_XEN_DOMINF_shutdown)
/* Currently paused by control software. */
#define _XEN_DOMINF_paused 3
#define XEN_DOMINF_paused (1U<<_XEN_DOMINF_paused)
/* Currently blocked pending an event. */
#define _XEN_DOMINF_blocked 4
#define XEN_DOMINF_blocked (1U<<_XEN_DOMINF_blocked)
/* Domain is currently running. */
#define _XEN_DOMINF_running 5
#define XEN_DOMINF_running (1U<<_XEN_DOMINF_running)
/* Being debugged. */
#define _XEN_DOMINF_debugged 6
#define XEN_DOMINF_debugged (1U<<_XEN_DOMINF_debugged)
/* XEN_DOMINF_shutdown guest-supplied code. */
#define XEN_DOMINF_shutdownmask 255
#define XEN_DOMINF_shutdownshift 16
uint32_t flags; /* XEN_DOMINF_* */
uint64_aligned_t tot_pages;
uint64_aligned_t max_pages;
uint64_aligned_t outstanding_pages;
uint64_aligned_t shr_pages;
uint64_aligned_t paged_pages;
uint64_aligned_t shared_info_frame; /* GMFN of shared_info struct */
uint64_aligned_t cpu_time;
uint32_t nr_online_vcpus; /* Number of VCPUs currently online. */
uint32_t max_vcpu_id; /* Maximum VCPUID in use by this domain. */
uint32_t ssidref;
xen_domain_handle_t handle;
uint32_t cpupool;
};
typedef struct xen_domctl_getdomaininfo xen_domctl_getdomaininfo_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_getdomaininfo_t);
/* XEN_DOMCTL_getmemlist */
struct xen_domctl_getmemlist {
/* IN variables. */
/* Max entries to write to output buffer. */
uint64_aligned_t max_pfns;
/* Start index in guest's page list. */
uint64_aligned_t start_pfn;
XEN_GUEST_HANDLE_64(uint64) buffer;
/* OUT variables. */
uint64_aligned_t num_pfns;
};
typedef struct xen_domctl_getmemlist xen_domctl_getmemlist_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_getmemlist_t);
/* XEN_DOMCTL_getpageframeinfo */
#define XEN_DOMCTL_PFINFO_LTAB_SHIFT 28
#define XEN_DOMCTL_PFINFO_NOTAB (0x0U<<28)
#define XEN_DOMCTL_PFINFO_L1TAB (0x1U<<28)
#define XEN_DOMCTL_PFINFO_L2TAB (0x2U<<28)
#define XEN_DOMCTL_PFINFO_L3TAB (0x3U<<28)
#define XEN_DOMCTL_PFINFO_L4TAB (0x4U<<28)
#define XEN_DOMCTL_PFINFO_LTABTYPE_MASK (0x7U<<28)
#define XEN_DOMCTL_PFINFO_LPINTAB (0x1U<<31)
#define XEN_DOMCTL_PFINFO_XTAB (0xfU<<28) /* invalid page */
#define XEN_DOMCTL_PFINFO_XALLOC (0xeU<<28) /* allocate-only page */
#define XEN_DOMCTL_PFINFO_BROKEN (0xdU<<28) /* broken page */
#define XEN_DOMCTL_PFINFO_LTAB_MASK (0xfU<<28)
struct xen_domctl_getpageframeinfo {
/* IN variables. */
uint64_aligned_t gmfn; /* GMFN to query */
/* OUT variables. */
/* Is the page PINNED to a type? */
uint32_t type; /* see above type defs */
};
typedef struct xen_domctl_getpageframeinfo xen_domctl_getpageframeinfo_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_getpageframeinfo_t);
/* XEN_DOMCTL_getpageframeinfo2 */
struct xen_domctl_getpageframeinfo2 {
/* IN variables. */
uint64_aligned_t num;
/* IN/OUT variables. */
XEN_GUEST_HANDLE_64(uint32) array;
};
typedef struct xen_domctl_getpageframeinfo2 xen_domctl_getpageframeinfo2_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_getpageframeinfo2_t);
/* XEN_DOMCTL_getpageframeinfo3 */
struct xen_domctl_getpageframeinfo3 {
/* IN variables. */
uint64_aligned_t num;
/* IN/OUT variables. */
XEN_GUEST_HANDLE_64(xen_pfn_t) array;
};
/*
* Control shadow pagetables operation
*/
/* XEN_DOMCTL_shadow_op */
/* Disable shadow mode. */
#define XEN_DOMCTL_SHADOW_OP_OFF 0
/* Enable shadow mode (mode contains ORed XEN_DOMCTL_SHADOW_ENABLE_* flags). */
#define XEN_DOMCTL_SHADOW_OP_ENABLE 32
/* Log-dirty bitmap operations. */
/* Return the bitmap and clean internal copy for next round. */
#define XEN_DOMCTL_SHADOW_OP_CLEAN 11
/* Return the bitmap but do not modify internal copy. */
#define XEN_DOMCTL_SHADOW_OP_PEEK 12
/* Memory allocation accessors. */
#define XEN_DOMCTL_SHADOW_OP_GET_ALLOCATION 30
#define XEN_DOMCTL_SHADOW_OP_SET_ALLOCATION 31
/* Legacy enable operations. */
/* Equiv. to ENABLE with no mode flags. */
#define XEN_DOMCTL_SHADOW_OP_ENABLE_TEST 1
/* Equiv. to ENABLE with mode flag ENABLE_LOG_DIRTY. */
#define XEN_DOMCTL_SHADOW_OP_ENABLE_LOGDIRTY 2
/* Equiv. to ENABLE with mode flags ENABLE_REFCOUNT and ENABLE_TRANSLATE. */
#define XEN_DOMCTL_SHADOW_OP_ENABLE_TRANSLATE 3
/* Mode flags for XEN_DOMCTL_SHADOW_OP_ENABLE. */
/*
* Shadow pagetables are refcounted: guest does not use explicit mmu
* operations nor write-protect its pagetables.
*/
#define XEN_DOMCTL_SHADOW_ENABLE_REFCOUNT (1 << 1)
/*
* Log pages in a bitmap as they are dirtied.
* Used for live relocation to determine which pages must be re-sent.
*/
#define XEN_DOMCTL_SHADOW_ENABLE_LOG_DIRTY (1 << 2)
/*
* Automatically translate GPFNs into MFNs.
*/
#define XEN_DOMCTL_SHADOW_ENABLE_TRANSLATE (1 << 3)
/*
* Xen does not steal virtual address space from the guest.
* Requires HVM support.
*/
#define XEN_DOMCTL_SHADOW_ENABLE_EXTERNAL (1 << 4)
struct xen_domctl_shadow_op_stats {
uint32_t fault_count;
uint32_t dirty_count;
};
typedef struct xen_domctl_shadow_op_stats xen_domctl_shadow_op_stats_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_shadow_op_stats_t);
struct xen_domctl_shadow_op {
/* IN variables. */
uint32_t op; /* XEN_DOMCTL_SHADOW_OP_* */
/* OP_ENABLE */
uint32_t mode; /* XEN_DOMCTL_SHADOW_ENABLE_* */
/* OP_GET_ALLOCATION / OP_SET_ALLOCATION */
uint32_t mb; /* Shadow memory allocation in MB */
/* OP_PEEK / OP_CLEAN */
XEN_GUEST_HANDLE_64(uint8) dirty_bitmap;
uint64_aligned_t pages; /* Size of buffer. Updated with actual size. */
struct xen_domctl_shadow_op_stats stats;
};
typedef struct xen_domctl_shadow_op xen_domctl_shadow_op_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_shadow_op_t);
/* XEN_DOMCTL_max_mem */
struct xen_domctl_max_mem {
/* IN variables. */
uint64_aligned_t max_memkb;
};
typedef struct xen_domctl_max_mem xen_domctl_max_mem_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_max_mem_t);
/* XEN_DOMCTL_setvcpucontext */
/* XEN_DOMCTL_getvcpucontext */
struct xen_domctl_vcpucontext {
uint32_t vcpu; /* IN */
XEN_GUEST_HANDLE_64(vcpu_guest_context_t) ctxt; /* IN/OUT */
};
typedef struct xen_domctl_vcpucontext xen_domctl_vcpucontext_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_vcpucontext_t);
/* XEN_DOMCTL_getvcpuinfo */
struct xen_domctl_getvcpuinfo {
/* IN variables. */
uint32_t vcpu;
/* OUT variables. */
uint8_t online; /* currently online (not hotplugged)? */
uint8_t blocked; /* blocked waiting for an event? */
uint8_t running; /* currently scheduled on its CPU? */
uint64_aligned_t cpu_time; /* total cpu time consumed (ns) */
uint32_t cpu; /* current mapping */
};
typedef struct xen_domctl_getvcpuinfo xen_domctl_getvcpuinfo_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_getvcpuinfo_t);
/* Get/set the NUMA node(s) with which the guest has affinity with. */
/* XEN_DOMCTL_setnodeaffinity */
/* XEN_DOMCTL_getnodeaffinity */
struct xen_domctl_nodeaffinity {
struct xenctl_bitmap nodemap;/* IN */
};
typedef struct xen_domctl_nodeaffinity xen_domctl_nodeaffinity_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_nodeaffinity_t);
/* Get/set which physical cpus a vcpu can execute on. */
/* XEN_DOMCTL_setvcpuaffinity */
/* XEN_DOMCTL_getvcpuaffinity */
struct xen_domctl_vcpuaffinity {
uint32_t vcpu; /* IN */
struct xenctl_bitmap cpumap; /* IN/OUT */
};
typedef struct xen_domctl_vcpuaffinity xen_domctl_vcpuaffinity_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_vcpuaffinity_t);
/* XEN_DOMCTL_max_vcpus */
struct xen_domctl_max_vcpus {
uint32_t max; /* maximum number of vcpus */
};
typedef struct xen_domctl_max_vcpus xen_domctl_max_vcpus_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_max_vcpus_t);
/* XEN_DOMCTL_scheduler_op */
/* Scheduler types. */
#define XEN_SCHEDULER_SEDF 4
#define XEN_SCHEDULER_CREDIT 5
#define XEN_SCHEDULER_CREDIT2 6
#define XEN_SCHEDULER_ARINC653 7
/* Set or get info? */
#define XEN_DOMCTL_SCHEDOP_putinfo 0
#define XEN_DOMCTL_SCHEDOP_getinfo 1
struct xen_domctl_scheduler_op {
uint32_t sched_id; /* XEN_SCHEDULER_* */
uint32_t cmd; /* XEN_DOMCTL_SCHEDOP_* */
union {
struct xen_domctl_sched_sedf {
uint64_aligned_t period;
uint64_aligned_t slice;
uint64_aligned_t latency;
uint32_t extratime;
uint32_t weight;
} sedf;
struct xen_domctl_sched_credit {
uint16_t weight;
uint16_t cap;
} credit;
struct xen_domctl_sched_credit2 {
uint16_t weight;
} credit2;
} u;
};
typedef struct xen_domctl_scheduler_op xen_domctl_scheduler_op_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_scheduler_op_t);
/* XEN_DOMCTL_setdomainhandle */
struct xen_domctl_setdomainhandle {
xen_domain_handle_t handle;
};
typedef struct xen_domctl_setdomainhandle xen_domctl_setdomainhandle_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_setdomainhandle_t);
/* XEN_DOMCTL_setdebugging */
struct xen_domctl_setdebugging {
uint8_t enable;
};
typedef struct xen_domctl_setdebugging xen_domctl_setdebugging_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_setdebugging_t);
/* XEN_DOMCTL_irq_permission */
struct xen_domctl_irq_permission {
uint8_t pirq;
uint8_t allow_access; /* flag to specify enable/disable of IRQ access */
};
typedef struct xen_domctl_irq_permission xen_domctl_irq_permission_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_irq_permission_t);
/* XEN_DOMCTL_iomem_permission */
struct xen_domctl_iomem_permission {
uint64_aligned_t first_mfn;/* first page (physical page number) in range */
uint64_aligned_t nr_mfns; /* number of pages in range (>0) */
uint8_t allow_access; /* allow (!0) or deny (0) access to range? */
};
typedef struct xen_domctl_iomem_permission xen_domctl_iomem_permission_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_iomem_permission_t);
/* XEN_DOMCTL_ioport_permission */
struct xen_domctl_ioport_permission {
uint32_t first_port; /* first port int range */
uint32_t nr_ports; /* size of port range */
uint8_t allow_access; /* allow or deny access to range? */
};
typedef struct xen_domctl_ioport_permission xen_domctl_ioport_permission_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_ioport_permission_t);
/* XEN_DOMCTL_hypercall_init */
struct xen_domctl_hypercall_init {
uint64_aligned_t gmfn; /* GMFN to be initialised */
};
typedef struct xen_domctl_hypercall_init xen_domctl_hypercall_init_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_hypercall_init_t);
/* XEN_DOMCTL_arch_setup */
#define _XEN_DOMAINSETUP_hvm_guest 0
#define XEN_DOMAINSETUP_hvm_guest (1UL<<_XEN_DOMAINSETUP_hvm_guest)
#define _XEN_DOMAINSETUP_query 1 /* Get parameters (for save) */
#define XEN_DOMAINSETUP_query (1UL<<_XEN_DOMAINSETUP_query)
#define _XEN_DOMAINSETUP_sioemu_guest 2
#define XEN_DOMAINSETUP_sioemu_guest (1UL<<_XEN_DOMAINSETUP_sioemu_guest)
typedef struct xen_domctl_arch_setup {
uint64_aligned_t flags; /* XEN_DOMAINSETUP_* */
} xen_domctl_arch_setup_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_arch_setup_t);
/* XEN_DOMCTL_settimeoffset */
struct xen_domctl_settimeoffset {
int32_t time_offset_seconds; /* applied to domain wallclock time */
};
typedef struct xen_domctl_settimeoffset xen_domctl_settimeoffset_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_settimeoffset_t);
/* XEN_DOMCTL_gethvmcontext */
/* XEN_DOMCTL_sethvmcontext */
typedef struct xen_domctl_hvmcontext {
uint32_t size; /* IN/OUT: size of buffer / bytes filled */
XEN_GUEST_HANDLE_64(uint8) buffer; /* IN/OUT: data, or call
* gethvmcontext with NULL
* buffer to get size req'd */
} xen_domctl_hvmcontext_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_hvmcontext_t);
/* XEN_DOMCTL_set_address_size */
/* XEN_DOMCTL_get_address_size */
typedef struct xen_domctl_address_size {
uint32_t size;
} xen_domctl_address_size_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_address_size_t);
/* XEN_DOMCTL_real_mode_area */
struct xen_domctl_real_mode_area {
uint32_t log; /* log2 of Real Mode Area size */
};
typedef struct xen_domctl_real_mode_area xen_domctl_real_mode_area_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_real_mode_area_t);
/* XEN_DOMCTL_sendtrigger */
#define XEN_DOMCTL_SENDTRIGGER_NMI 0
#define XEN_DOMCTL_SENDTRIGGER_RESET 1
#define XEN_DOMCTL_SENDTRIGGER_INIT 2
#define XEN_DOMCTL_SENDTRIGGER_POWER 3
#define XEN_DOMCTL_SENDTRIGGER_SLEEP 4
struct xen_domctl_sendtrigger {
uint32_t trigger; /* IN */
uint32_t vcpu; /* IN */
};
typedef struct xen_domctl_sendtrigger xen_domctl_sendtrigger_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_sendtrigger_t);
/* Assign PCI device to HVM guest. Sets up IOMMU structures. */
/* XEN_DOMCTL_assign_device */
/* XEN_DOMCTL_test_assign_device */
/* XEN_DOMCTL_deassign_device */
struct xen_domctl_assign_device {
uint32_t machine_sbdf; /* machine PCI ID of assigned device */
};
typedef struct xen_domctl_assign_device xen_domctl_assign_device_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_assign_device_t);
/* Retrieve sibling devices infomation of machine_sbdf */
/* XEN_DOMCTL_get_device_group */
struct xen_domctl_get_device_group {
uint32_t machine_sbdf; /* IN */
uint32_t max_sdevs; /* IN */
uint32_t num_sdevs; /* OUT */
XEN_GUEST_HANDLE_64(uint32) sdev_array; /* OUT */
};
typedef struct xen_domctl_get_device_group xen_domctl_get_device_group_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_get_device_group_t);
/* Pass-through interrupts: bind real irq -> hvm devfn. */
/* XEN_DOMCTL_bind_pt_irq */
/* XEN_DOMCTL_unbind_pt_irq */
typedef enum pt_irq_type_e {
PT_IRQ_TYPE_PCI,
PT_IRQ_TYPE_ISA,
PT_IRQ_TYPE_MSI,
PT_IRQ_TYPE_MSI_TRANSLATE,
} pt_irq_type_t;
struct xen_domctl_bind_pt_irq {
uint32_t machine_irq;
pt_irq_type_t irq_type;
uint32_t hvm_domid;
union {
struct {
uint8_t isa_irq;
} isa;
struct {
uint8_t bus;
uint8_t device;
uint8_t intx;
} pci;
struct {
uint8_t gvec;
uint32_t gflags;
uint64_aligned_t gtable;
} msi;
} u;
};
typedef struct xen_domctl_bind_pt_irq xen_domctl_bind_pt_irq_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_bind_pt_irq_t);
/* Bind machine I/O address range -> HVM address range. */
/* XEN_DOMCTL_memory_mapping */
#define DPCI_ADD_MAPPING 1
#define DPCI_REMOVE_MAPPING 0
struct xen_domctl_memory_mapping {
uint64_aligned_t first_gfn; /* first page (hvm guest phys page) in range */
uint64_aligned_t first_mfn; /* first page (machine page) in range */
uint64_aligned_t nr_mfns; /* number of pages in range (>0) */
uint32_t add_mapping; /* add or remove mapping */
uint32_t padding; /* padding for 64-bit aligned structure */
};
typedef struct xen_domctl_memory_mapping xen_domctl_memory_mapping_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_memory_mapping_t);
/* Bind machine I/O port range -> HVM I/O port range. */
/* XEN_DOMCTL_ioport_mapping */
struct xen_domctl_ioport_mapping {
uint32_t first_gport; /* first guest IO port*/
uint32_t first_mport; /* first machine IO port */
uint32_t nr_ports; /* size of port range */
uint32_t add_mapping; /* add or remove mapping */
};
typedef struct xen_domctl_ioport_mapping xen_domctl_ioport_mapping_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_ioport_mapping_t);
/*
* Pin caching type of RAM space for x86 HVM domU.
*/
/* XEN_DOMCTL_pin_mem_cacheattr */
/* Caching types: these happen to be the same as x86 MTRR/PAT type codes. */
#define XEN_DOMCTL_MEM_CACHEATTR_UC 0
#define XEN_DOMCTL_MEM_CACHEATTR_WC 1
#define XEN_DOMCTL_MEM_CACHEATTR_WT 4
#define XEN_DOMCTL_MEM_CACHEATTR_WP 5
#define XEN_DOMCTL_MEM_CACHEATTR_WB 6
#define XEN_DOMCTL_MEM_CACHEATTR_UCM 7
struct xen_domctl_pin_mem_cacheattr {
uint64_aligned_t start, end;
uint32_t type; /* XEN_DOMCTL_MEM_CACHEATTR_* */
};
typedef struct xen_domctl_pin_mem_cacheattr xen_domctl_pin_mem_cacheattr_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_pin_mem_cacheattr_t);
/* XEN_DOMCTL_set_ext_vcpucontext */
/* XEN_DOMCTL_get_ext_vcpucontext */
struct xen_domctl_ext_vcpucontext {
/* IN: VCPU that this call applies to. */
uint32_t vcpu;
/*
* SET: Size of struct (IN)
* GET: Size of struct (OUT, up to 128 bytes)
*/
uint32_t size;
#if defined(__i386__) || defined(__x86_64__)
/* SYSCALL from 32-bit mode and SYSENTER callback information. */
/* NB. SYSCALL from 64-bit mode is contained in vcpu_guest_context_t */
uint64_aligned_t syscall32_callback_eip;
uint64_aligned_t sysenter_callback_eip;
uint16_t syscall32_callback_cs;
uint16_t sysenter_callback_cs;
uint8_t syscall32_disables_events;
uint8_t sysenter_disables_events;
#if defined(__GNUC__)
union {
uint64_aligned_t mcg_cap;
struct hvm_vmce_vcpu vmce;
};
#else
struct hvm_vmce_vcpu vmce;
#endif
#endif
};
typedef struct xen_domctl_ext_vcpucontext xen_domctl_ext_vcpucontext_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_ext_vcpucontext_t);
/*
* Set the target domain for a domain
*/
/* XEN_DOMCTL_set_target */
struct xen_domctl_set_target {
domid_t target;
};
typedef struct xen_domctl_set_target xen_domctl_set_target_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_set_target_t);
#if defined(__i386__) || defined(__x86_64__)
# define XEN_CPUID_INPUT_UNUSED 0xFFFFFFFF
/* XEN_DOMCTL_set_cpuid */
struct xen_domctl_cpuid {
uint32_t input[2];
uint32_t eax;
uint32_t ebx;
uint32_t ecx;
uint32_t edx;
};
typedef struct xen_domctl_cpuid xen_domctl_cpuid_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_cpuid_t);
#endif
/* XEN_DOMCTL_subscribe */
struct xen_domctl_subscribe {
uint32_t port; /* IN */
};
typedef struct xen_domctl_subscribe xen_domctl_subscribe_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_subscribe_t);
/*
* Define the maximum machine address size which should be allocated
* to a guest.
*/
/* XEN_DOMCTL_set_machine_address_size */
/* XEN_DOMCTL_get_machine_address_size */
/*
* Do not inject spurious page faults into this domain.
*/
/* XEN_DOMCTL_suppress_spurious_page_faults */
/* XEN_DOMCTL_debug_op */
#define XEN_DOMCTL_DEBUG_OP_SINGLE_STEP_OFF 0
#define XEN_DOMCTL_DEBUG_OP_SINGLE_STEP_ON 1
struct xen_domctl_debug_op {
uint32_t op; /* IN */
uint32_t vcpu; /* IN */
};
typedef struct xen_domctl_debug_op xen_domctl_debug_op_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_debug_op_t);
/*
* Request a particular record from the HVM context
*/
/* XEN_DOMCTL_gethvmcontext_partial */
typedef struct xen_domctl_hvmcontext_partial {
uint32_t type; /* IN: Type of record required */
uint32_t instance; /* IN: Instance of that type */
XEN_GUEST_HANDLE_64(uint8) buffer; /* OUT: buffer to write record into */
} xen_domctl_hvmcontext_partial_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_hvmcontext_partial_t);
/* XEN_DOMCTL_disable_migrate */
typedef struct xen_domctl_disable_migrate {
uint32_t disable; /* IN: 1: disable migration and restore */
} xen_domctl_disable_migrate_t;
/* XEN_DOMCTL_gettscinfo */
/* XEN_DOMCTL_settscinfo */
struct xen_guest_tsc_info {
uint32_t tsc_mode;
uint32_t gtsc_khz;
uint32_t incarnation;
uint32_t pad;
uint64_aligned_t elapsed_nsec;
};
typedef struct xen_guest_tsc_info xen_guest_tsc_info_t;
DEFINE_XEN_GUEST_HANDLE(xen_guest_tsc_info_t);
typedef struct xen_domctl_tsc_info {
XEN_GUEST_HANDLE_64(xen_guest_tsc_info_t) out_info; /* OUT */
xen_guest_tsc_info_t info; /* IN */
} xen_domctl_tsc_info_t;
/* XEN_DOMCTL_gdbsx_guestmemio guest mem io */
struct xen_domctl_gdbsx_memio {
/* IN */
uint64_aligned_t pgd3val;/* optional: init_mm.pgd[3] value */
uint64_aligned_t gva; /* guest virtual address */
uint64_aligned_t uva; /* user buffer virtual address */
uint32_t len; /* number of bytes to read/write */
uint8_t gwr; /* 0 = read from guest. 1 = write to guest */
/* OUT */
uint32_t remain; /* bytes remaining to be copied */
};
/* XEN_DOMCTL_gdbsx_pausevcpu */
/* XEN_DOMCTL_gdbsx_unpausevcpu */
struct xen_domctl_gdbsx_pauseunp_vcpu { /* pause/unpause a vcpu */
uint32_t vcpu; /* which vcpu */
};
/* XEN_DOMCTL_gdbsx_domstatus */
struct xen_domctl_gdbsx_domstatus {
/* OUT */
uint8_t paused; /* is the domain paused */
uint32_t vcpu_id; /* any vcpu in an event? */
uint32_t vcpu_ev; /* if yes, what event? */
};
/*
* Memory event operations
*/
/* XEN_DOMCTL_mem_event_op */
/*
* Domain memory paging
* Page memory in and out.
* Domctl interface to set up and tear down the
* pager<->hypervisor interface. Use XENMEM_paging_op*
* to perform per-page operations.
*
* The XEN_DOMCTL_MEM_EVENT_OP_PAGING_ENABLE domctl returns several
* non-standard error codes to indicate why paging could not be enabled:
* ENODEV - host lacks HAP support (EPT/NPT) or HAP is disabled in guest
* EMLINK - guest has iommu passthrough enabled
* EXDEV - guest has PoD enabled
* EBUSY - guest has or had paging enabled, ring buffer still active
*/
#define XEN_DOMCTL_MEM_EVENT_OP_PAGING 1
#define XEN_DOMCTL_MEM_EVENT_OP_PAGING_ENABLE 0
#define XEN_DOMCTL_MEM_EVENT_OP_PAGING_DISABLE 1
/*
* Access permissions.
*
* As with paging, use the domctl for teardown/setup of the
* helper<->hypervisor interface.
*
* There are HVM hypercalls to set the per-page access permissions of every
* page in a domain. When one of these permissions--independent, read,
* write, and execute--is violated, the VCPU is paused and a memory event
* is sent with what happened. (See public/mem_event.h) .
*
* The memory event handler can then resume the VCPU and redo the access
* with a XENMEM_access_op_resume hypercall.
*
* The XEN_DOMCTL_MEM_EVENT_OP_ACCESS_ENABLE domctl returns several
* non-standard error codes to indicate why access could not be enabled:
* ENODEV - host lacks HAP support (EPT/NPT) or HAP is disabled in guest
* EBUSY - guest has or had access enabled, ring buffer still active
*/
#define XEN_DOMCTL_MEM_EVENT_OP_ACCESS 2
#define XEN_DOMCTL_MEM_EVENT_OP_ACCESS_ENABLE 0
#define XEN_DOMCTL_MEM_EVENT_OP_ACCESS_DISABLE 1
/*
* Sharing ENOMEM helper.
*
* As with paging, use the domctl for teardown/setup of the
* helper<->hypervisor interface.
*
* If setup, this ring is used to communicate failed allocations
* in the unshare path. XENMEM_sharing_op_resume is used to wake up
* vcpus that could not unshare.
*
* Note that shring can be turned on (as per the domctl below)
* *without* this ring being setup.
*/
#define XEN_DOMCTL_MEM_EVENT_OP_SHARING 3
#define XEN_DOMCTL_MEM_EVENT_OP_SHARING_ENABLE 0
#define XEN_DOMCTL_MEM_EVENT_OP_SHARING_DISABLE 1
/* Use for teardown/setup of helper<->hypervisor interface for paging,
* access and sharing.*/
struct xen_domctl_mem_event_op {
uint32_t op; /* XEN_DOMCTL_MEM_EVENT_OP_*_* */
uint32_t mode; /* XEN_DOMCTL_MEM_EVENT_OP_* */
uint32_t port; /* OUT: event channel for ring */
};
typedef struct xen_domctl_mem_event_op xen_domctl_mem_event_op_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_mem_event_op_t);
/*
* Memory sharing operations
*/
/* XEN_DOMCTL_mem_sharing_op.
* The CONTROL sub-domctl is used for bringup/teardown. */
#define XEN_DOMCTL_MEM_SHARING_CONTROL 0
struct xen_domctl_mem_sharing_op {
uint8_t op; /* XEN_DOMCTL_MEM_SHARING_* */
union {
uint8_t enable; /* CONTROL */
} u;
};
typedef struct xen_domctl_mem_sharing_op xen_domctl_mem_sharing_op_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_mem_sharing_op_t);
struct xen_domctl_audit_p2m {
/* OUT error counts */
uint64_t orphans;
uint64_t m2p_bad;
uint64_t p2m_bad;
};
typedef struct xen_domctl_audit_p2m xen_domctl_audit_p2m_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_audit_p2m_t);
struct xen_domctl_set_virq_handler {
uint32_t virq; /* IN */
};
typedef struct xen_domctl_set_virq_handler xen_domctl_set_virq_handler_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_set_virq_handler_t);
#if defined(__i386__) || defined(__x86_64__)
/* XEN_DOMCTL_setvcpuextstate */
/* XEN_DOMCTL_getvcpuextstate */
struct xen_domctl_vcpuextstate {
/* IN: VCPU that this call applies to. */
uint32_t vcpu;
/*
* SET: xfeature support mask of struct (IN)
* GET: xfeature support mask of struct (IN/OUT)
* xfeature mask is served as identifications of the saving format
* so that compatible CPUs can have a check on format to decide
* whether it can restore.
*/
uint64_aligned_t xfeature_mask;
/*
* SET: Size of struct (IN)
* GET: Size of struct (IN/OUT)
*/
uint64_aligned_t size;
XEN_GUEST_HANDLE_64(uint64) buffer;
};
typedef struct xen_domctl_vcpuextstate xen_domctl_vcpuextstate_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_vcpuextstate_t);
#endif
/* XEN_DOMCTL_set_access_required: sets whether a memory event listener
* must be present to handle page access events: if false, the page
* access will revert to full permissions if no one is listening;
* */
struct xen_domctl_set_access_required {
uint8_t access_required;
};
typedef struct xen_domctl_set_access_required xen_domctl_set_access_required_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_set_access_required_t);
struct xen_domctl_set_broken_page_p2m {
uint64_aligned_t pfn;
};
typedef struct xen_domctl_set_broken_page_p2m xen_domctl_set_broken_page_p2m_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_set_broken_page_p2m_t);
struct xen_domctl {
uint32_t cmd;
#define XEN_DOMCTL_createdomain 1
#define XEN_DOMCTL_destroydomain 2
#define XEN_DOMCTL_pausedomain 3
#define XEN_DOMCTL_unpausedomain 4
#define XEN_DOMCTL_getdomaininfo 5
#define XEN_DOMCTL_getmemlist 6
#define XEN_DOMCTL_getpageframeinfo 7
#define XEN_DOMCTL_getpageframeinfo2 8
#define XEN_DOMCTL_setvcpuaffinity 9
#define XEN_DOMCTL_shadow_op 10
#define XEN_DOMCTL_max_mem 11
#define XEN_DOMCTL_setvcpucontext 12
#define XEN_DOMCTL_getvcpucontext 13
#define XEN_DOMCTL_getvcpuinfo 14
#define XEN_DOMCTL_max_vcpus 15
#define XEN_DOMCTL_scheduler_op 16
#define XEN_DOMCTL_setdomainhandle 17
#define XEN_DOMCTL_setdebugging 18
#define XEN_DOMCTL_irq_permission 19
#define XEN_DOMCTL_iomem_permission 20
#define XEN_DOMCTL_ioport_permission 21
#define XEN_DOMCTL_hypercall_init 22
#define XEN_DOMCTL_arch_setup 23
#define XEN_DOMCTL_settimeoffset 24
#define XEN_DOMCTL_getvcpuaffinity 25
#define XEN_DOMCTL_real_mode_area 26
#define XEN_DOMCTL_resumedomain 27
#define XEN_DOMCTL_sendtrigger 28
#define XEN_DOMCTL_subscribe 29
#define XEN_DOMCTL_gethvmcontext 33
#define XEN_DOMCTL_sethvmcontext 34
#define XEN_DOMCTL_set_address_size 35
#define XEN_DOMCTL_get_address_size 36
#define XEN_DOMCTL_assign_device 37
#define XEN_DOMCTL_bind_pt_irq 38
#define XEN_DOMCTL_memory_mapping 39
#define XEN_DOMCTL_ioport_mapping 40
#define XEN_DOMCTL_pin_mem_cacheattr 41
#define XEN_DOMCTL_set_ext_vcpucontext 42
#define XEN_DOMCTL_get_ext_vcpucontext 43
#define XEN_DOMCTL_set_opt_feature 44 /* Obsolete IA64 only */
#define XEN_DOMCTL_test_assign_device 45
#define XEN_DOMCTL_set_target 46
#define XEN_DOMCTL_deassign_device 47
#define XEN_DOMCTL_unbind_pt_irq 48
#define XEN_DOMCTL_set_cpuid 49
#define XEN_DOMCTL_get_device_group 50
#define XEN_DOMCTL_set_machine_address_size 51
#define XEN_DOMCTL_get_machine_address_size 52
#define XEN_DOMCTL_suppress_spurious_page_faults 53
#define XEN_DOMCTL_debug_op 54
#define XEN_DOMCTL_gethvmcontext_partial 55
#define XEN_DOMCTL_mem_event_op 56
#define XEN_DOMCTL_mem_sharing_op 57
#define XEN_DOMCTL_disable_migrate 58
#define XEN_DOMCTL_gettscinfo 59
#define XEN_DOMCTL_settscinfo 60
#define XEN_DOMCTL_getpageframeinfo3 61
#define XEN_DOMCTL_setvcpuextstate 62
#define XEN_DOMCTL_getvcpuextstate 63
#define XEN_DOMCTL_set_access_required 64
#define XEN_DOMCTL_audit_p2m 65
#define XEN_DOMCTL_set_virq_handler 66
#define XEN_DOMCTL_set_broken_page_p2m 67
#define XEN_DOMCTL_setnodeaffinity 68
#define XEN_DOMCTL_getnodeaffinity 69
#define XEN_DOMCTL_gdbsx_guestmemio 1000
#define XEN_DOMCTL_gdbsx_pausevcpu 1001
#define XEN_DOMCTL_gdbsx_unpausevcpu 1002
#define XEN_DOMCTL_gdbsx_domstatus 1003
uint32_t interface_version; /* XEN_DOMCTL_INTERFACE_VERSION */
domid_t domain;
union {
struct xen_domctl_createdomain createdomain;
struct xen_domctl_getdomaininfo getdomaininfo;
struct xen_domctl_getmemlist getmemlist;
struct xen_domctl_getpageframeinfo getpageframeinfo;
struct xen_domctl_getpageframeinfo2 getpageframeinfo2;
struct xen_domctl_getpageframeinfo3 getpageframeinfo3;
struct xen_domctl_nodeaffinity nodeaffinity;
struct xen_domctl_vcpuaffinity vcpuaffinity;
struct xen_domctl_shadow_op shadow_op;
struct xen_domctl_max_mem max_mem;
struct xen_domctl_vcpucontext vcpucontext;
struct xen_domctl_getvcpuinfo getvcpuinfo;
struct xen_domctl_max_vcpus max_vcpus;
struct xen_domctl_scheduler_op scheduler_op;
struct xen_domctl_setdomainhandle setdomainhandle;
struct xen_domctl_setdebugging setdebugging;
struct xen_domctl_irq_permission irq_permission;
struct xen_domctl_iomem_permission iomem_permission;
struct xen_domctl_ioport_permission ioport_permission;
struct xen_domctl_hypercall_init hypercall_init;
struct xen_domctl_arch_setup arch_setup;
struct xen_domctl_settimeoffset settimeoffset;
struct xen_domctl_disable_migrate disable_migrate;
struct xen_domctl_tsc_info tsc_info;
struct xen_domctl_real_mode_area real_mode_area;
struct xen_domctl_hvmcontext hvmcontext;
struct xen_domctl_hvmcontext_partial hvmcontext_partial;
struct xen_domctl_address_size address_size;
struct xen_domctl_sendtrigger sendtrigger;
struct xen_domctl_get_device_group get_device_group;
struct xen_domctl_assign_device assign_device;
struct xen_domctl_bind_pt_irq bind_pt_irq;
struct xen_domctl_memory_mapping memory_mapping;
struct xen_domctl_ioport_mapping ioport_mapping;
struct xen_domctl_pin_mem_cacheattr pin_mem_cacheattr;
struct xen_domctl_ext_vcpucontext ext_vcpucontext;
struct xen_domctl_set_target set_target;
struct xen_domctl_subscribe subscribe;
struct xen_domctl_debug_op debug_op;
struct xen_domctl_mem_event_op mem_event_op;
struct xen_domctl_mem_sharing_op mem_sharing_op;
#if defined(__i386__) || defined(__x86_64__)
struct xen_domctl_cpuid cpuid;
struct xen_domctl_vcpuextstate vcpuextstate;
#endif
struct xen_domctl_set_access_required access_required;
struct xen_domctl_audit_p2m audit_p2m;
struct xen_domctl_set_virq_handler set_virq_handler;
struct xen_domctl_gdbsx_memio gdbsx_guest_memio;
struct xen_domctl_set_broken_page_p2m set_broken_page_p2m;
struct xen_domctl_gdbsx_pauseunp_vcpu gdbsx_pauseunp_vcpu;
struct xen_domctl_gdbsx_domstatus gdbsx_domstatus;
uint8_t pad[128];
} u;
};
typedef struct xen_domctl xen_domctl_t;
DEFINE_XEN_GUEST_HANDLE(xen_domctl_t);
#endif /* __XEN_PUBLIC_DOMCTL_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* elfnote.h
*
* Definitions used for the Xen ELF notes.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2006, Ian Campbell, XenSource Ltd.
*/
#ifndef __XEN_PUBLIC_ELFNOTE_H__
#define __XEN_PUBLIC_ELFNOTE_H__
/*
* `incontents 200 elfnotes ELF notes
*
* The notes should live in a PT_NOTE segment and have "Xen" in the
* name field.
*
* Numeric types are either 4 or 8 bytes depending on the content of
* the desc field.
*
* LEGACY indicated the fields in the legacy __xen_guest string which
* this a note type replaces.
*
* String values (for non-legacy) are NULL terminated ASCII, also known
* as ASCIZ type.
*/
/*
* NAME=VALUE pair (string).
*/
#define XEN_ELFNOTE_INFO 0
/*
* The virtual address of the entry point (numeric).
*
* LEGACY: VIRT_ENTRY
*/
#define XEN_ELFNOTE_ENTRY 1
/* The virtual address of the hypercall transfer page (numeric).
*
* LEGACY: HYPERCALL_PAGE. (n.b. legacy value is a physical page
* number not a virtual address)
*/
#define XEN_ELFNOTE_HYPERCALL_PAGE 2
/* The virtual address where the kernel image should be mapped (numeric).
*
* Defaults to 0.
*
* LEGACY: VIRT_BASE
*/
#define XEN_ELFNOTE_VIRT_BASE 3
/*
* The offset of the ELF paddr field from the acutal required
* psuedo-physical address (numeric).
*
* This is used to maintain backwards compatibility with older kernels
* which wrote __PAGE_OFFSET into that field. This field defaults to 0
* if not present.
*
* LEGACY: ELF_PADDR_OFFSET. (n.b. legacy default is VIRT_BASE)
*/
#define XEN_ELFNOTE_PADDR_OFFSET 4
/*
* The version of Xen that we work with (string).
*
* LEGACY: XEN_VER
*/
#define XEN_ELFNOTE_XEN_VERSION 5
/*
* The name of the guest operating system (string).
*
* LEGACY: GUEST_OS
*/
#define XEN_ELFNOTE_GUEST_OS 6
/*
* The version of the guest operating system (string).
*
* LEGACY: GUEST_VER
*/
#define XEN_ELFNOTE_GUEST_VERSION 7
/*
* The loader type (string).
*
* LEGACY: LOADER
*/
#define XEN_ELFNOTE_LOADER 8
/*
* The kernel supports PAE (x86/32 only, string = "yes", "no" or
* "bimodal").
*
* For compatibility with Xen 3.0.3 and earlier the "bimodal" setting
* may be given as "yes,bimodal" which will cause older Xen to treat
* this kernel as PAE.
*
* LEGACY: PAE (n.b. The legacy interface included a provision to
* indicate 'extended-cr3' support allowing L3 page tables to be
* placed above 4G. It is assumed that any kernel new enough to use
* these ELF notes will include this and therefore "yes" here is
* equivalent to "yes[entended-cr3]" in the __xen_guest interface.
*/
#define XEN_ELFNOTE_PAE_MODE 9
/*
* The features supported/required by this kernel (string).
*
* The string must consist of a list of feature names (as given in
* features.h, without the "XENFEAT_" prefix) separated by '|'
* characters. If a feature is required for the kernel to function
* then the feature name must be preceded by a '!' character.
*
* LEGACY: FEATURES
*/
#define XEN_ELFNOTE_FEATURES 10
/*
* The kernel requires the symbol table to be loaded (string = "yes" or "no")
* LEGACY: BSD_SYMTAB (n.b. The legacy treated the presence or absence
* of this string as a boolean flag rather than requiring "yes" or
* "no".
*/
#define XEN_ELFNOTE_BSD_SYMTAB 11
/*
* The lowest address the hypervisor hole can begin at (numeric).
*
* This must not be set higher than HYPERVISOR_VIRT_START. Its presence
* also indicates to the hypervisor that the kernel can deal with the
* hole starting at a higher address.
*/
#define XEN_ELFNOTE_HV_START_LOW 12
/*
* List of maddr_t-sized mask/value pairs describing how to recognize
* (non-present) L1 page table entries carrying valid MFNs (numeric).
*/
#define XEN_ELFNOTE_L1_MFN_VALID 13
/*
* Whether or not the guest supports cooperative suspend cancellation.
* This is a numeric value.
*
* Default is 0
*/
#define XEN_ELFNOTE_SUSPEND_CANCEL 14
/*
* The (non-default) location the initial phys-to-machine map should be
* placed at by the hypervisor (Dom0) or the tools (DomU).
* The kernel must be prepared for this mapping to be established using
* large pages, despite such otherwise not being available to guests.
* The kernel must also be able to handle the page table pages used for
* this mapping not being accessible through the initial mapping.
* (Only x86-64 supports this at present.)
*/
#define XEN_ELFNOTE_INIT_P2M 15
/*
* Whether or not the guest can deal with being passed an initrd not
* mapped through its initial page tables.
*/
#define XEN_ELFNOTE_MOD_START_PFN 16
/*
* The features supported by this kernel (numeric).
*
* Other than XEN_ELFNOTE_FEATURES on pre-4.2 Xen, this note allows a
* kernel to specify support for features that older hypervisors don't
* know about. The set of features 4.2 and newer hypervisors will
* consider supported by the kernel is the combination of the sets
* specified through this and the string note.
*
* LEGACY: FEATURES
*/
#define XEN_ELFNOTE_SUPPORTED_FEATURES 17
/*
* The number of the highest elfnote defined.
*/
#define XEN_ELFNOTE_MAX XEN_ELFNOTE_SUPPORTED_FEATURES
/*
* System information exported through crash notes.
*
* The kexec / kdump code will create one XEN_ELFNOTE_CRASH_INFO
* note in case of a system crash. This note will contain various
* information about the system, see xen/include/xen/elfcore.h.
*/
#define XEN_ELFNOTE_CRASH_INFO 0x1000001
/*
* System registers exported through crash notes.
*
* The kexec / kdump code will create one XEN_ELFNOTE_CRASH_REGS
* note per cpu in case of a system crash. This note is architecture
* specific and will contain registers not saved in the "CORE" note.
* See xen/include/xen/elfcore.h for more information.
*/
#define XEN_ELFNOTE_CRASH_REGS 0x1000002
/*
* xen dump-core none note.
* xm dump-core code will create one XEN_ELFNOTE_DUMPCORE_NONE
* in its dump file to indicate that the file is xen dump-core
* file. This note doesn't have any other information.
* See tools/libxc/xc_core.h for more information.
*/
#define XEN_ELFNOTE_DUMPCORE_NONE 0x2000000
/*
* xen dump-core header note.
* xm dump-core code will create one XEN_ELFNOTE_DUMPCORE_HEADER
* in its dump file.
* See tools/libxc/xc_core.h for more information.
*/
#define XEN_ELFNOTE_DUMPCORE_HEADER 0x2000001
/*
* xen dump-core xen version note.
* xm dump-core code will create one XEN_ELFNOTE_DUMPCORE_XEN_VERSION
* in its dump file. It contains the xen version obtained via the
* XENVER hypercall.
* See tools/libxc/xc_core.h for more information.
*/
#define XEN_ELFNOTE_DUMPCORE_XEN_VERSION 0x2000002
/*
* xen dump-core format version note.
* xm dump-core code will create one XEN_ELFNOTE_DUMPCORE_FORMAT_VERSION
* in its dump file. It contains a format version identifier.
* See tools/libxc/xc_core.h for more information.
*/
#define XEN_ELFNOTE_DUMPCORE_FORMAT_VERSION 0x2000003
#endif /* __XEN_PUBLIC_ELFNOTE_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* event_channel.h
*
* Event channels between domains.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2003-2004, K A Fraser.
*/
#ifndef __XEN_PUBLIC_EVENT_CHANNEL_H__
#define __XEN_PUBLIC_EVENT_CHANNEL_H__
#include "xen.h"
/*
* `incontents 150 evtchn Event Channels
*
* Event channels are the basic primitive provided by Xen for event
* notifications. An event is the Xen equivalent of a hardware
* interrupt. They essentially store one bit of information, the event
* of interest is signalled by transitioning this bit from 0 to 1.
*
* Notifications are received by a guest via an upcall from Xen,
* indicating when an event arrives (setting the bit). Further
* notifications are masked until the bit is cleared again (therefore,
* guests must check the value of the bit after re-enabling event
* delivery to ensure no missed notifications).
*
* Event notifications can be masked by setting a flag; this is
* equivalent to disabling interrupts and can be used to ensure
* atomicity of certain operations in the guest kernel.
*
* Event channels are represented by the evtchn_* fields in
* struct shared_info and struct vcpu_info.
*/
/*
* ` enum neg_errnoval
* ` HYPERVISOR_event_channel_op(enum event_channel_op cmd, void *args)
* `
* @cmd == EVTCHNOP_* (event-channel operation).
* @args == struct evtchn_* Operation-specific extra arguments (NULL if none).
*/
/* ` enum event_channel_op { // EVTCHNOP_* => struct evtchn_* */
#define EVTCHNOP_bind_interdomain 0
#define EVTCHNOP_bind_virq 1
#define EVTCHNOP_bind_pirq 2
#define EVTCHNOP_close 3
#define EVTCHNOP_send 4
#define EVTCHNOP_status 5
#define EVTCHNOP_alloc_unbound 6
#define EVTCHNOP_bind_ipi 7
#define EVTCHNOP_bind_vcpu 8
#define EVTCHNOP_unmask 9
#define EVTCHNOP_reset 10
/* ` } */
typedef uint32_t evtchn_port_t;
DEFINE_XEN_GUEST_HANDLE(evtchn_port_t);
/*
* EVTCHNOP_alloc_unbound: Allocate a port in domain <dom> and mark as
* accepting interdomain bindings from domain <remote_dom>. A fresh port
* is allocated in <dom> and returned as <port>.
* NOTES:
* 1. If the caller is unprivileged then <dom> must be DOMID_SELF.
* 2. <rdom> may be DOMID_SELF, allowing loopback connections.
*/
struct evtchn_alloc_unbound {
/* IN parameters */
domid_t dom, remote_dom;
/* OUT parameters */
evtchn_port_t port;
};
typedef struct evtchn_alloc_unbound evtchn_alloc_unbound_t;
/*
* EVTCHNOP_bind_interdomain: Construct an interdomain event channel between
* the calling domain and <remote_dom>. <remote_dom,remote_port> must identify
* a port that is unbound and marked as accepting bindings from the calling
* domain. A fresh port is allocated in the calling domain and returned as
* <local_port>.
* NOTES:
* 1. <remote_dom> may be DOMID_SELF, allowing loopback connections.
*/
struct evtchn_bind_interdomain {
/* IN parameters. */
domid_t remote_dom;
evtchn_port_t remote_port;
/* OUT parameters. */
evtchn_port_t local_port;
};
typedef struct evtchn_bind_interdomain evtchn_bind_interdomain_t;
/*
* EVTCHNOP_bind_virq: Bind a local event channel to VIRQ <irq> on specified
* vcpu.
* NOTES:
* 1. Virtual IRQs are classified as per-vcpu or global. See the VIRQ list
* in xen.h for the classification of each VIRQ.
* 2. Global VIRQs must be allocated on VCPU0 but can subsequently be
* re-bound via EVTCHNOP_bind_vcpu.
* 3. Per-vcpu VIRQs may be bound to at most one event channel per vcpu.
* The allocated event channel is bound to the specified vcpu and the
* binding cannot be changed.
*/
struct evtchn_bind_virq {
/* IN parameters. */
uint32_t virq; /* enum virq */
uint32_t vcpu;
/* OUT parameters. */
evtchn_port_t port;
};
typedef struct evtchn_bind_virq evtchn_bind_virq_t;
/*
* EVTCHNOP_bind_pirq: Bind a local event channel to a real IRQ (PIRQ <irq>).
* NOTES:
* 1. A physical IRQ may be bound to at most one event channel per domain.
* 2. Only a sufficiently-privileged domain may bind to a physical IRQ.
*/
struct evtchn_bind_pirq {
/* IN parameters. */
uint32_t pirq;
#define BIND_PIRQ__WILL_SHARE 1
uint32_t flags; /* BIND_PIRQ__* */
/* OUT parameters. */
evtchn_port_t port;
};
typedef struct evtchn_bind_pirq evtchn_bind_pirq_t;
/*
* EVTCHNOP_bind_ipi: Bind a local event channel to receive events.
* NOTES:
* 1. The allocated event channel is bound to the specified vcpu. The binding
* may not be changed.
*/
struct evtchn_bind_ipi {
uint32_t vcpu;
/* OUT parameters. */
evtchn_port_t port;
};
typedef struct evtchn_bind_ipi evtchn_bind_ipi_t;
/*
* EVTCHNOP_close: Close a local event channel <port>. If the channel is
* interdomain then the remote end is placed in the unbound state
* (EVTCHNSTAT_unbound), awaiting a new connection.
*/
struct evtchn_close {
/* IN parameters. */
evtchn_port_t port;
};
typedef struct evtchn_close evtchn_close_t;
/*
* EVTCHNOP_send: Send an event to the remote end of the channel whose local
* endpoint is <port>.
*/
struct evtchn_send {
/* IN parameters. */
evtchn_port_t port;
};
typedef struct evtchn_send evtchn_send_t;
/*
* EVTCHNOP_status: Get the current status of the communication channel which
* has an endpoint at <dom, port>.
* NOTES:
* 1. <dom> may be specified as DOMID_SELF.
* 2. Only a sufficiently-privileged domain may obtain the status of an event
* channel for which <dom> is not DOMID_SELF.
*/
struct evtchn_status {
/* IN parameters */
domid_t dom;
evtchn_port_t port;
/* OUT parameters */
#define EVTCHNSTAT_closed 0 /* Channel is not in use. */
#define EVTCHNSTAT_unbound 1 /* Channel is waiting interdom connection.*/
#define EVTCHNSTAT_interdomain 2 /* Channel is connected to remote domain. */
#define EVTCHNSTAT_pirq 3 /* Channel is bound to a phys IRQ line. */
#define EVTCHNSTAT_virq 4 /* Channel is bound to a virtual IRQ line */
#define EVTCHNSTAT_ipi 5 /* Channel is bound to a virtual IPI line */
uint32_t status;
uint32_t vcpu; /* VCPU to which this channel is bound. */
union {
struct {
domid_t dom;
} unbound; /* EVTCHNSTAT_unbound */
struct {
domid_t dom;
evtchn_port_t port;
} interdomain; /* EVTCHNSTAT_interdomain */
uint32_t pirq; /* EVTCHNSTAT_pirq */
uint32_t virq; /* EVTCHNSTAT_virq */
} u;
};
typedef struct evtchn_status evtchn_status_t;
/*
* EVTCHNOP_bind_vcpu: Specify which vcpu a channel should notify when an
* event is pending.
* NOTES:
* 1. IPI-bound channels always notify the vcpu specified at bind time.
* This binding cannot be changed.
* 2. Per-VCPU VIRQ channels always notify the vcpu specified at bind time.
* This binding cannot be changed.
* 3. All other channels notify vcpu0 by default. This default is set when
* the channel is allocated (a port that is freed and subsequently reused
* has its binding reset to vcpu0).
*/
struct evtchn_bind_vcpu {
/* IN parameters. */
evtchn_port_t port;
uint32_t vcpu;
};
typedef struct evtchn_bind_vcpu evtchn_bind_vcpu_t;
/*
* EVTCHNOP_unmask: Unmask the specified local event-channel port and deliver
* a notification to the appropriate VCPU if an event is pending.
*/
struct evtchn_unmask {
/* IN parameters. */
evtchn_port_t port;
};
typedef struct evtchn_unmask evtchn_unmask_t;
/*
* EVTCHNOP_reset: Close all event channels associated with specified domain.
* NOTES:
* 1. <dom> may be specified as DOMID_SELF.
* 2. Only a sufficiently-privileged domain may specify other than DOMID_SELF.
*/
struct evtchn_reset {
/* IN parameters. */
domid_t dom;
};
typedef struct evtchn_reset evtchn_reset_t;
/*
* ` enum neg_errnoval
* ` HYPERVISOR_event_channel_op_compat(struct evtchn_op *op)
* `
* Superceded by new event_channel_op() hypercall since 0x00030202.
*/
struct evtchn_op {
uint32_t cmd; /* enum event_channel_op */
union {
struct evtchn_alloc_unbound alloc_unbound;
struct evtchn_bind_interdomain bind_interdomain;
struct evtchn_bind_virq bind_virq;
struct evtchn_bind_pirq bind_pirq;
struct evtchn_bind_ipi bind_ipi;
struct evtchn_close close;
struct evtchn_send send;
struct evtchn_status status;
struct evtchn_bind_vcpu bind_vcpu;
struct evtchn_unmask unmask;
} u;
};
typedef struct evtchn_op evtchn_op_t;
DEFINE_XEN_GUEST_HANDLE(evtchn_op_t);
#endif /* __XEN_PUBLIC_EVENT_CHANNEL_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* features.h
*
* Feature flags, reported by XENVER_get_features.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2006, Keir Fraser <keir@xensource.com>
*/
#ifndef __XEN_PUBLIC_FEATURES_H__
#define __XEN_PUBLIC_FEATURES_H__
/*
* `incontents 200 elfnotes_features XEN_ELFNOTE_FEATURES
*
* The list of all the features the guest supports. They are set by
* parsing the XEN_ELFNOTE_FEATURES and XEN_ELFNOTE_SUPPORTED_FEATURES
* string. The format is the feature names (as given here without the
* "XENFEAT_" prefix) separated by '|' characters.
* If a feature is required for the kernel to function then the feature name
* must be preceded by a '!' character.
*
* Note that if XEN_ELFNOTE_SUPPORTED_FEATURES is used, then in the
* XENFEAT_dom0 MUST be set if the guest is to be booted as dom0,
*/
/*
* If set, the guest does not need to write-protect its pagetables, and can
* update them via direct writes.
*/
#define XENFEAT_writable_page_tables 0
/*
* If set, the guest does not need to write-protect its segment descriptor
* tables, and can update them via direct writes.
*/
#define XENFEAT_writable_descriptor_tables 1
/*
* If set, translation between the guest's 'pseudo-physical' address space
* and the host's machine address space are handled by the hypervisor. In this
* mode the guest does not need to perform phys-to/from-machine translations
* when performing page table operations.
*/
#define XENFEAT_auto_translated_physmap 2
/* If set, the guest is running in supervisor mode (e.g., x86 ring 0). */
#define XENFEAT_supervisor_mode_kernel 3
/*
* If set, the guest does not need to allocate x86 PAE page directories
* below 4GB. This flag is usually implied by auto_translated_physmap.
*/
#define XENFEAT_pae_pgdir_above_4gb 4
/* x86: Does this Xen host support the MMU_PT_UPDATE_PRESERVE_AD hypercall? */
#define XENFEAT_mmu_pt_update_preserve_ad 5
/* x86: Does this Xen host support the MMU_{CLEAR,COPY}_PAGE hypercall? */
#define XENFEAT_highmem_assist 6
/*
* If set, GNTTABOP_map_grant_ref honors flags to be placed into guest kernel
* available pte bits.
*/
#define XENFEAT_gnttab_map_avail_bits 7
/* x86: Does this Xen host support the HVM callback vector type? */
#define XENFEAT_hvm_callback_vector 8
/* x86: pvclock algorithm is safe to use on HVM */
#define XENFEAT_hvm_safe_pvclock 9
/* x86: pirq can be used by HVM guests */
#define XENFEAT_hvm_pirqs 10
/* operation as Dom0 is supported */
#define XENFEAT_dom0 11
#define XENFEAT_NR_SUBMAPS 1
#endif /* __XEN_PUBLIC_FEATURES_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* gcov.h
*
* Coverage structures exported by Xen.
* Structure is different from Gcc one.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2013, Citrix Systems R&D Ltd.
*/
#ifndef __XEN_PUBLIC_GCOV_H__
#define __XEN_PUBLIC_GCOV_H__ __XEN_PUBLIC_GCOV_H__
#define XENCOV_COUNTERS 5
#define XENCOV_TAG_BASE 0x58544300u
#define XENCOV_TAG_FILE (XENCOV_TAG_BASE+0x46u)
#define XENCOV_TAG_FUNC (XENCOV_TAG_BASE+0x66u)
#define XENCOV_TAG_COUNTER(n) (XENCOV_TAG_BASE+0x30u+((n)&0xfu))
#define XENCOV_TAG_END (XENCOV_TAG_BASE+0x2eu)
#define XENCOV_IS_TAG_COUNTER(n) \
((n) >= XENCOV_TAG_COUNTER(0) && (n) < XENCOV_TAG_COUNTER(XENCOV_COUNTERS))
#define XENCOV_COUNTER_NUM(n) ((n)-XENCOV_TAG_COUNTER(0))
/*
* The main structure for the blob is
* BLOB := FILE.. END
* FILE := TAG_FILE VERSION STAMP FILENAME COUNTERS FUNCTIONS
* FILENAME := LEN characters
* characters are padded to 32 bit
* LEN := 32 bit value
* COUNTERS := TAG_COUNTER(n) NUM COUNTER..
* NUM := 32 bit valie
* COUNTER := 64 bit value
* FUNCTIONS := TAG_FUNC NUM FUNCTION..
* FUNCTION := IDENT CHECKSUM NUM_COUNTERS
*
* All tagged structures are aligned to 8 bytes
*/
/**
* File information
* Prefixed with XENCOV_TAG_FILE and a string with filename
* Aligned to 8 bytes
*/
struct xencov_file
{
uint32_t tag; /* XENCOV_TAG_FILE */
uint32_t version;
uint32_t stamp;
uint32_t fn_len;
char filename[1];
};
/**
* Counters information
* Prefixed with XENCOV_TAG_COUNTER(n) where n is 0..(XENCOV_COUNTERS-1)
* Aligned to 8 bytes
*/
struct xencov_counter
{
uint32_t tag; /* XENCOV_TAG_COUNTER(n) */
uint32_t num;
uint64_t values[1];
};
/**
* Information for each function
* Number of counter is equal to the number of counter structures got before
*/
struct xencov_function
{
uint32_t ident;
uint32_t checksum;
uint32_t num_counters[1];
};
/**
* Information for all functions
* Aligned to 8 bytes
*/
struct xencov_functions
{
uint32_t tag; /* XENCOV_TAG_FUNC */
uint32_t num;
struct xencov_function xencov_function[1];
};
/**
* Terminator
*/
struct xencov_end
{
uint32_t tag; /* XENCOV_TAG_END */
};
#endif /* __XEN_PUBLIC_GCOV_H__ */

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/******************************************************************************
* grant_table.h
*
* Interface for granting foreign access to page frames, and receiving
* page-ownership transfers.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2004, K A Fraser
*/
#ifndef __XEN_PUBLIC_GRANT_TABLE_H__
#define __XEN_PUBLIC_GRANT_TABLE_H__
#include "xen.h"
/*
* `incontents 150 gnttab Grant Tables
*
* Xen's grant tables provide a generic mechanism to memory sharing
* between domains. This shared memory interface underpins the split
* device drivers for block and network IO.
*
* Each domain has its own grant table. This is a data structure that
* is shared with Xen; it allows the domain to tell Xen what kind of
* permissions other domains have on its pages. Entries in the grant
* table are identified by grant references. A grant reference is an
* integer, which indexes into the grant table. It acts as a
* capability which the grantee can use to perform operations on the
* granter’s memory.
*
* This capability-based system allows shared-memory communications
* between unprivileged domains. A grant reference also encapsulates
* the details of a shared page, removing the need for a domain to
* know the real machine address of a page it is sharing. This makes
* it possible to share memory correctly with domains running in
* fully virtualised memory.
*/
/***********************************
* GRANT TABLE REPRESENTATION
*/
/* Some rough guidelines on accessing and updating grant-table entries
* in a concurrency-safe manner. For more information, Linux contains a
* reference implementation for guest OSes (drivers/xen/grant_table.c, see
* http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=blob;f=drivers/xen/grant-table.c;hb=HEAD
*
* NB. WMB is a no-op on current-generation x86 processors. However, a
* compiler barrier will still be required.
*
* Introducing a valid entry into the grant table:
* 1. Write ent->domid.
* 2. Write ent->frame:
* GTF_permit_access: Frame to which access is permitted.
* GTF_accept_transfer: Pseudo-phys frame slot being filled by new
* frame, or zero if none.
* 3. Write memory barrier (WMB).
* 4. Write ent->flags, inc. valid type.
*
* Invalidating an unused GTF_permit_access entry:
* 1. flags = ent->flags.
* 2. Observe that !(flags & (GTF_reading|GTF_writing)).
* 3. Check result of SMP-safe CMPXCHG(&ent->flags, flags, 0).
* NB. No need for WMB as reuse of entry is control-dependent on success of
* step 3, and all architectures guarantee ordering of ctrl-dep writes.
*
* Invalidating an in-use GTF_permit_access entry:
* This cannot be done directly. Request assistance from the domain controller
* which can set a timeout on the use of a grant entry and take necessary
* action. (NB. This is not yet implemented!).
*
* Invalidating an unused GTF_accept_transfer entry:
* 1. flags = ent->flags.
* 2. Observe that !(flags & GTF_transfer_committed). [*]
* 3. Check result of SMP-safe CMPXCHG(&ent->flags, flags, 0).
* NB. No need for WMB as reuse of entry is control-dependent on success of
* step 3, and all architectures guarantee ordering of ctrl-dep writes.
* [*] If GTF_transfer_committed is set then the grant entry is 'committed'.
* The guest must /not/ modify the grant entry until the address of the
* transferred frame is written. It is safe for the guest to spin waiting
* for this to occur (detect by observing GTF_transfer_completed in
* ent->flags).
*
* Invalidating a committed GTF_accept_transfer entry:
* 1. Wait for (ent->flags & GTF_transfer_completed).
*
* Changing a GTF_permit_access from writable to read-only:
* Use SMP-safe CMPXCHG to set GTF_readonly, while checking !GTF_writing.
*
* Changing a GTF_permit_access from read-only to writable:
* Use SMP-safe bit-setting instruction.
*/
/*
* Reference to a grant entry in a specified domain's grant table.
*/
typedef uint32_t grant_ref_t;
/*
* A grant table comprises a packed array of grant entries in one or more
* page frames shared between Xen and a guest.
* [XEN]: This field is written by Xen and read by the sharing guest.
* [GST]: This field is written by the guest and read by Xen.
*/
/*
* Version 1 of the grant table entry structure is maintained purely
* for backwards compatibility. New guests should use version 2.
*/
#if __XEN_INTERFACE_VERSION__ < 0x0003020a
#define grant_entry_v1 grant_entry
#define grant_entry_v1_t grant_entry_t
#endif
struct grant_entry_v1 {
/* GTF_xxx: various type and flag information. [XEN,GST] */
uint16_t flags;
/* The domain being granted foreign privileges. [GST] */
domid_t domid;
/*
* GTF_permit_access: Frame that @domid is allowed to map and access. [GST]
* GTF_accept_transfer: Frame whose ownership transferred by @domid. [XEN]
*/
uint32_t frame;
};
typedef struct grant_entry_v1 grant_entry_v1_t;
/* The first few grant table entries will be preserved across grant table
* version changes and may be pre-populated at domain creation by tools.
*/
#define GNTTAB_NR_RESERVED_ENTRIES 8
#define GNTTAB_RESERVED_CONSOLE 0
#define GNTTAB_RESERVED_XENSTORE 1
/*
* Type of grant entry.
* GTF_invalid: This grant entry grants no privileges.
* GTF_permit_access: Allow @domid to map/access @frame.
* GTF_accept_transfer: Allow @domid to transfer ownership of one page frame
* to this guest. Xen writes the page number to @frame.
* GTF_transitive: Allow @domid to transitively access a subrange of
* @trans_grant in @trans_domid. No mappings are allowed.
*/
#define GTF_invalid (0U<<0)
#define GTF_permit_access (1U<<0)
#define GTF_accept_transfer (2U<<0)
#define GTF_transitive (3U<<0)
#define GTF_type_mask (3U<<0)
/*
* Subflags for GTF_permit_access.
* GTF_readonly: Restrict @domid to read-only mappings and accesses. [GST]
* GTF_reading: Grant entry is currently mapped for reading by @domid. [XEN]
* GTF_writing: Grant entry is currently mapped for writing by @domid. [XEN]
* GTF_PAT, GTF_PWT, GTF_PCD: (x86) cache attribute flags for the grant [GST]
* GTF_sub_page: Grant access to only a subrange of the page. @domid
* will only be allowed to copy from the grant, and not
* map it. [GST]
*/
#define _GTF_readonly (2)
#define GTF_readonly (1U<<_GTF_readonly)
#define _GTF_reading (3)
#define GTF_reading (1U<<_GTF_reading)
#define _GTF_writing (4)
#define GTF_writing (1U<<_GTF_writing)
#define _GTF_PWT (5)
#define GTF_PWT (1U<<_GTF_PWT)
#define _GTF_PCD (6)
#define GTF_PCD (1U<<_GTF_PCD)
#define _GTF_PAT (7)
#define GTF_PAT (1U<<_GTF_PAT)
#define _GTF_sub_page (8)
#define GTF_sub_page (1U<<_GTF_sub_page)
/*
* Subflags for GTF_accept_transfer:
* GTF_transfer_committed: Xen sets this flag to indicate that it is committed
* to transferring ownership of a page frame. When a guest sees this flag
* it must /not/ modify the grant entry until GTF_transfer_completed is
* set by Xen.
* GTF_transfer_completed: It is safe for the guest to spin-wait on this flag
* after reading GTF_transfer_committed. Xen will always write the frame
* address, followed by ORing this flag, in a timely manner.
*/
#define _GTF_transfer_committed (2)
#define GTF_transfer_committed (1U<<_GTF_transfer_committed)
#define _GTF_transfer_completed (3)
#define GTF_transfer_completed (1U<<_GTF_transfer_completed)
/*
* Version 2 grant table entries. These fulfil the same role as
* version 1 entries, but can represent more complicated operations.
* Any given domain will have either a version 1 or a version 2 table,
* and every entry in the table will be the same version.
*
* The interface by which domains use grant references does not depend
* on the grant table version in use by the other domain.
*/
#if __XEN_INTERFACE_VERSION__ >= 0x0003020a
/*
* Version 1 and version 2 grant entries share a common prefix. The
* fields of the prefix are documented as part of struct
* grant_entry_v1.
*/
struct grant_entry_header {
uint16_t flags;
domid_t domid;
};
typedef struct grant_entry_header grant_entry_header_t;
/*
* Version 2 of the grant entry structure.
*/
union grant_entry_v2 {
grant_entry_header_t hdr;
/*
* This member is used for V1-style full page grants, where either:
*
* -- hdr.type is GTF_accept_transfer, or
* -- hdr.type is GTF_permit_access and GTF_sub_page is not set.
*
* In that case, the frame field has the same semantics as the
* field of the same name in the V1 entry structure.
*/
struct {
grant_entry_header_t hdr;
uint32_t pad0;
uint64_t frame;
} full_page;
/*
* If the grant type is GTF_grant_access and GTF_sub_page is set,
* @domid is allowed to access bytes [@page_off,@page_off+@length)
* in frame @frame.
*/
struct {
grant_entry_header_t hdr;
uint16_t page_off;
uint16_t length;
uint64_t frame;
} sub_page;
/*
* If the grant is GTF_transitive, @domid is allowed to use the
* grant @gref in domain @trans_domid, as if it was the local
* domain. Obviously, the transitive access must be compatible
* with the original grant.
*
* The current version of Xen does not allow transitive grants
* to be mapped.
*/
struct {
grant_entry_header_t hdr;
domid_t trans_domid;
uint16_t pad0;
grant_ref_t gref;
} transitive;
uint32_t __spacer[4]; /* Pad to a power of two */
};
typedef union grant_entry_v2 grant_entry_v2_t;
typedef uint16_t grant_status_t;
#endif /* __XEN_INTERFACE_VERSION__ */
/***********************************
* GRANT TABLE QUERIES AND USES
*/
/* ` enum neg_errnoval
* ` HYPERVISOR_grant_table_op(enum grant_table_op cmd,
* ` void *args,
* ` unsigned int count)
* `
*
* @args points to an array of a per-command data structure. The array
* has @count members
*/
/* ` enum grant_table_op { // GNTTABOP_* => struct gnttab_* */
#define GNTTABOP_map_grant_ref 0
#define GNTTABOP_unmap_grant_ref 1
#define GNTTABOP_setup_table 2
#define GNTTABOP_dump_table 3
#define GNTTABOP_transfer 4
#define GNTTABOP_copy 5
#define GNTTABOP_query_size 6
#define GNTTABOP_unmap_and_replace 7
#if __XEN_INTERFACE_VERSION__ >= 0x0003020a
#define GNTTABOP_set_version 8
#define GNTTABOP_get_status_frames 9
#define GNTTABOP_get_version 10
#define GNTTABOP_swap_grant_ref 11
#endif /* __XEN_INTERFACE_VERSION__ */
/* ` } */
/*
* Handle to track a mapping created via a grant reference.
*/
typedef uint32_t grant_handle_t;
/*
* GNTTABOP_map_grant_ref: Map the grant entry (<dom>,<ref>) for access
* by devices and/or host CPUs. If successful, <handle> is a tracking number
* that must be presented later to destroy the mapping(s). On error, <handle>
* is a negative status code.
* NOTES:
* 1. If GNTMAP_device_map is specified then <dev_bus_addr> is the address
* via which I/O devices may access the granted frame.
* 2. If GNTMAP_host_map is specified then a mapping will be added at
* either a host virtual address in the current address space, or at
* a PTE at the specified machine address. The type of mapping to
* perform is selected through the GNTMAP_contains_pte flag, and the
* address is specified in <host_addr>.
* 3. Mappings should only be destroyed via GNTTABOP_unmap_grant_ref. If a
* host mapping is destroyed by other means then it is *NOT* guaranteed
* to be accounted to the correct grant reference!
*/
struct gnttab_map_grant_ref {
/* IN parameters. */
uint64_t host_addr;
uint32_t flags; /* GNTMAP_* */
grant_ref_t ref;
domid_t dom;
/* OUT parameters. */
int16_t status; /* => enum grant_status */
grant_handle_t handle;
uint64_t dev_bus_addr;
};
typedef struct gnttab_map_grant_ref gnttab_map_grant_ref_t;
DEFINE_XEN_GUEST_HANDLE(gnttab_map_grant_ref_t);
/*
* GNTTABOP_unmap_grant_ref: Destroy one or more grant-reference mappings
* tracked by <handle>. If <host_addr> or <dev_bus_addr> is zero, that
* field is ignored. If non-zero, they must refer to a device/host mapping
* that is tracked by <handle>
* NOTES:
* 1. The call may fail in an undefined manner if either mapping is not
* tracked by <handle>.
* 3. After executing a batch of unmaps, it is guaranteed that no stale
* mappings will remain in the device or host TLBs.
*/
struct gnttab_unmap_grant_ref {
/* IN parameters. */
uint64_t host_addr;
uint64_t dev_bus_addr;
grant_handle_t handle;
/* OUT parameters. */
int16_t status; /* => enum grant_status */
};
typedef struct gnttab_unmap_grant_ref gnttab_unmap_grant_ref_t;
DEFINE_XEN_GUEST_HANDLE(gnttab_unmap_grant_ref_t);
/*
* GNTTABOP_setup_table: Set up a grant table for <dom> comprising at least
* <nr_frames> pages. The frame addresses are written to the <frame_list>.
* Only <nr_frames> addresses are written, even if the table is larger.
* NOTES:
* 1. <dom> may be specified as DOMID_SELF.
* 2. Only a sufficiently-privileged domain may specify <dom> != DOMID_SELF.
* 3. Xen may not support more than a single grant-table page per domain.
*/
struct gnttab_setup_table {
/* IN parameters. */
domid_t dom;
uint32_t nr_frames;
/* OUT parameters. */
int16_t status; /* => enum grant_status */
#if __XEN_INTERFACE_VERSION__ < 0x00040300
XEN_GUEST_HANDLE(ulong) frame_list;
#else
XEN_GUEST_HANDLE(xen_pfn_t) frame_list;
#endif
};
typedef struct gnttab_setup_table gnttab_setup_table_t;
DEFINE_XEN_GUEST_HANDLE(gnttab_setup_table_t);
/*
* GNTTABOP_dump_table: Dump the contents of the grant table to the
* xen console. Debugging use only.
*/
struct gnttab_dump_table {
/* IN parameters. */
domid_t dom;
/* OUT parameters. */
int16_t status; /* => enum grant_status */
};
typedef struct gnttab_dump_table gnttab_dump_table_t;
DEFINE_XEN_GUEST_HANDLE(gnttab_dump_table_t);
/*
* GNTTABOP_transfer_grant_ref: Transfer <frame> to a foreign domain. The
* foreign domain has previously registered its interest in the transfer via
* <domid, ref>.
*
* Note that, even if the transfer fails, the specified page no longer belongs
* to the calling domain *unless* the error is GNTST_bad_page.
*/
struct gnttab_transfer {
/* IN parameters. */
xen_pfn_t mfn;
domid_t domid;
grant_ref_t ref;
/* OUT parameters. */
int16_t status;
};
typedef struct gnttab_transfer gnttab_transfer_t;
DEFINE_XEN_GUEST_HANDLE(gnttab_transfer_t);
/*
* GNTTABOP_copy: Hypervisor based copy
* source and destinations can be eithers MFNs or, for foreign domains,
* grant references. the foreign domain has to grant read/write access
* in its grant table.
*
* The flags specify what type source and destinations are (either MFN
* or grant reference).
*
* Note that this can also be used to copy data between two domains
* via a third party if the source and destination domains had previously
* grant appropriate access to their pages to the third party.
*
* source_offset specifies an offset in the source frame, dest_offset
* the offset in the target frame and len specifies the number of
* bytes to be copied.
*/
#define _GNTCOPY_source_gref (0)
#define GNTCOPY_source_gref (1<<_GNTCOPY_source_gref)
#define _GNTCOPY_dest_gref (1)
#define GNTCOPY_dest_gref (1<<_GNTCOPY_dest_gref)
struct gnttab_copy {
/* IN parameters. */
struct {
union {
grant_ref_t ref;
xen_pfn_t gmfn;
} u;
domid_t domid;
uint16_t offset;
} source, dest;
uint16_t len;
uint16_t flags; /* GNTCOPY_* */
/* OUT parameters. */
int16_t status;
};
typedef struct gnttab_copy gnttab_copy_t;
DEFINE_XEN_GUEST_HANDLE(gnttab_copy_t);
/*
* GNTTABOP_query_size: Query the current and maximum sizes of the shared
* grant table.
* NOTES:
* 1. <dom> may be specified as DOMID_SELF.
* 2. Only a sufficiently-privileged domain may specify <dom> != DOMID_SELF.
*/
struct gnttab_query_size {
/* IN parameters. */
domid_t dom;
/* OUT parameters. */
uint32_t nr_frames;
uint32_t max_nr_frames;
int16_t status; /* => enum grant_status */
};
typedef struct gnttab_query_size gnttab_query_size_t;
DEFINE_XEN_GUEST_HANDLE(gnttab_query_size_t);
/*
* GNTTABOP_unmap_and_replace: Destroy one or more grant-reference mappings
* tracked by <handle> but atomically replace the page table entry with one
* pointing to the machine address under <new_addr>. <new_addr> will be
* redirected to the null entry.
* NOTES:
* 1. The call may fail in an undefined manner if either mapping is not
* tracked by <handle>.
* 2. After executing a batch of unmaps, it is guaranteed that no stale
* mappings will remain in the device or host TLBs.
*/
struct gnttab_unmap_and_replace {
/* IN parameters. */
uint64_t host_addr;
uint64_t new_addr;
grant_handle_t handle;
/* OUT parameters. */
int16_t status; /* => enum grant_status */
};
typedef struct gnttab_unmap_and_replace gnttab_unmap_and_replace_t;
DEFINE_XEN_GUEST_HANDLE(gnttab_unmap_and_replace_t);
#if __XEN_INTERFACE_VERSION__ >= 0x0003020a
/*
* GNTTABOP_set_version: Request a particular version of the grant
* table shared table structure. This operation can only be performed
* once in any given domain. It must be performed before any grants
* are activated; otherwise, the domain will be stuck with version 1.
* The only defined versions are 1 and 2.
*/
struct gnttab_set_version {
/* IN/OUT parameters */
uint32_t version;
};
typedef struct gnttab_set_version gnttab_set_version_t;
DEFINE_XEN_GUEST_HANDLE(gnttab_set_version_t);
/*
* GNTTABOP_get_status_frames: Get the list of frames used to store grant
* status for <dom>. In grant format version 2, the status is separated
* from the other shared grant fields to allow more efficient synchronization
* using barriers instead of atomic cmpexch operations.
* <nr_frames> specify the size of vector <frame_list>.
* The frame addresses are returned in the <frame_list>.
* Only <nr_frames> addresses are returned, even if the table is larger.
* NOTES:
* 1. <dom> may be specified as DOMID_SELF.
* 2. Only a sufficiently-privileged domain may specify <dom> != DOMID_SELF.
*/
struct gnttab_get_status_frames {
/* IN parameters. */
uint32_t nr_frames;
domid_t dom;
/* OUT parameters. */
int16_t status; /* => enum grant_status */
XEN_GUEST_HANDLE(uint64_t) frame_list;
};
typedef struct gnttab_get_status_frames gnttab_get_status_frames_t;
DEFINE_XEN_GUEST_HANDLE(gnttab_get_status_frames_t);
/*
* GNTTABOP_get_version: Get the grant table version which is in
* effect for domain <dom>.
*/
struct gnttab_get_version {
/* IN parameters */
domid_t dom;
uint16_t pad;
/* OUT parameters */
uint32_t version;
};
typedef struct gnttab_get_version gnttab_get_version_t;
DEFINE_XEN_GUEST_HANDLE(gnttab_get_version_t);
/*
* GNTTABOP_swap_grant_ref: Swap the contents of two grant entries.
*/
struct gnttab_swap_grant_ref {
/* IN parameters */
grant_ref_t ref_a;
grant_ref_t ref_b;
/* OUT parameters */
int16_t status; /* => enum grant_status */
};
typedef struct gnttab_swap_grant_ref gnttab_swap_grant_ref_t;
DEFINE_XEN_GUEST_HANDLE(gnttab_swap_grant_ref_t);
#endif /* __XEN_INTERFACE_VERSION__ */
/*
* Bitfield values for gnttab_map_grant_ref.flags.
*/
/* Map the grant entry for access by I/O devices. */
#define _GNTMAP_device_map (0)
#define GNTMAP_device_map (1<<_GNTMAP_device_map)
/* Map the grant entry for access by host CPUs. */
#define _GNTMAP_host_map (1)
#define GNTMAP_host_map (1<<_GNTMAP_host_map)
/* Accesses to the granted frame will be restricted to read-only access. */
#define _GNTMAP_readonly (2)
#define GNTMAP_readonly (1<<_GNTMAP_readonly)
/*
* GNTMAP_host_map subflag:
* 0 => The host mapping is usable only by the guest OS.
* 1 => The host mapping is usable by guest OS + current application.
*/
#define _GNTMAP_application_map (3)
#define GNTMAP_application_map (1<<_GNTMAP_application_map)
/*
* GNTMAP_contains_pte subflag:
* 0 => This map request contains a host virtual address.
* 1 => This map request contains the machine addess of the PTE to update.
*/
#define _GNTMAP_contains_pte (4)
#define GNTMAP_contains_pte (1<<_GNTMAP_contains_pte)
#define _GNTMAP_can_fail (5)
#define GNTMAP_can_fail (1<<_GNTMAP_can_fail)
/*
* Bits to be placed in guest kernel available PTE bits (architecture
* dependent; only supported when XENFEAT_gnttab_map_avail_bits is set).
*/
#define _GNTMAP_guest_avail0 (16)
#define GNTMAP_guest_avail_mask ((uint32_t)~0 << _GNTMAP_guest_avail0)
/*
* Values for error status returns. All errors are -ve.
*/
/* ` enum grant_status { */
#define GNTST_okay (0) /* Normal return. */
#define GNTST_general_error (-1) /* General undefined error. */
#define GNTST_bad_domain (-2) /* Unrecognsed domain id. */
#define GNTST_bad_gntref (-3) /* Unrecognised or inappropriate gntref. */
#define GNTST_bad_handle (-4) /* Unrecognised or inappropriate handle. */
#define GNTST_bad_virt_addr (-5) /* Inappropriate virtual address to map. */
#define GNTST_bad_dev_addr (-6) /* Inappropriate device address to unmap.*/
#define GNTST_no_device_space (-7) /* Out of space in I/O MMU. */
#define GNTST_permission_denied (-8) /* Not enough privilege for operation. */
#define GNTST_bad_page (-9) /* Specified page was invalid for op. */
#define GNTST_bad_copy_arg (-10) /* copy arguments cross page boundary. */
#define GNTST_address_too_big (-11) /* transfer page address too large. */
#define GNTST_eagain (-12) /* Operation not done; try again. */
/* ` } */
#define GNTTABOP_error_msgs { \
"okay", \
"undefined error", \
"unrecognised domain id", \
"invalid grant reference", \
"invalid mapping handle", \
"invalid virtual address", \
"invalid device address", \
"no spare translation slot in the I/O MMU", \
"permission denied", \
"bad page", \
"copy arguments cross page boundary", \
"page address size too large", \
"operation not done; try again" \
}
#endif /* __XEN_PUBLIC_GRANT_TABLE_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef __XEN_PUBLIC_HVM_E820_H__
#define __XEN_PUBLIC_HVM_E820_H__
/* E820 location in HVM virtual address space. */
#define HVM_E820_PAGE 0x00090000
#define HVM_E820_NR_OFFSET 0x000001E8
#define HVM_E820_OFFSET 0x000002D0
#define HVM_BELOW_4G_RAM_END 0xF0000000
#define HVM_BELOW_4G_MMIO_START HVM_BELOW_4G_RAM_END
#define HVM_BELOW_4G_MMIO_LENGTH ((1ULL << 32) - HVM_BELOW_4G_MMIO_START)
#endif /* __XEN_PUBLIC_HVM_E820_H__ */

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/******************************************************************************
* hvm/hvm_info_table.h
*
* HVM parameter and information table, written into guest memory map.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef __XEN_PUBLIC_HVM_HVM_INFO_TABLE_H__
#define __XEN_PUBLIC_HVM_HVM_INFO_TABLE_H__
#define HVM_INFO_PFN 0x09F
#define HVM_INFO_OFFSET 0x800
#define HVM_INFO_PADDR ((HVM_INFO_PFN << 12) + HVM_INFO_OFFSET)
/* Maximum we can support with current vLAPIC ID mapping. */
#define HVM_MAX_VCPUS 128
struct hvm_info_table {
char signature[8]; /* "HVM INFO" */
uint32_t length;
uint8_t checksum;
/* Should firmware build APIC descriptors (APIC MADT / MP BIOS)? */
uint8_t apic_mode;
/* How many CPUs does this domain have? */
uint32_t nr_vcpus;
/*
* MEMORY MAP provided by HVM domain builder.
* Notes:
* 1. page_to_phys(x) = x << 12
* 2. If a field is zero, the corresponding range does not exist.
*/
/*
* 0x0 to page_to_phys(low_mem_pgend)-1:
* RAM below 4GB (except for VGA hole 0xA0000-0xBFFFF)
*/
uint32_t low_mem_pgend;
/*
* page_to_phys(reserved_mem_pgstart) to 0xFFFFFFFF:
* Reserved for special memory mappings
*/
uint32_t reserved_mem_pgstart;
/*
* 0x100000000 to page_to_phys(high_mem_pgend)-1:
* RAM above 4GB
*/
uint32_t high_mem_pgend;
/* Bitmap of which CPUs are online at boot time. */
uint8_t vcpu_online[(HVM_MAX_VCPUS + 7)/8];
};
#endif /* __XEN_PUBLIC_HVM_HVM_INFO_TABLE_H__ */

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/*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef __XEN_PUBLIC_HVM_HVM_OP_H__
#define __XEN_PUBLIC_HVM_HVM_OP_H__
#include "../xen.h"
#include "../trace.h"
/* Get/set subcommands: extra argument == pointer to xen_hvm_param struct. */
#define HVMOP_set_param 0
#define HVMOP_get_param 1
struct xen_hvm_param {
domid_t domid; /* IN */
uint32_t index; /* IN */
uint64_t value; /* IN/OUT */
};
typedef struct xen_hvm_param xen_hvm_param_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_param_t);
/* Set the logical level of one of a domain's PCI INTx wires. */
#define HVMOP_set_pci_intx_level 2
struct xen_hvm_set_pci_intx_level {
/* Domain to be updated. */
domid_t domid;
/* PCI INTx identification in PCI topology (domain:bus:device:intx). */
uint8_t domain, bus, device, intx;
/* Assertion level (0 = unasserted, 1 = asserted). */
uint8_t level;
};
typedef struct xen_hvm_set_pci_intx_level xen_hvm_set_pci_intx_level_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_set_pci_intx_level_t);
/* Set the logical level of one of a domain's ISA IRQ wires. */
#define HVMOP_set_isa_irq_level 3
struct xen_hvm_set_isa_irq_level {
/* Domain to be updated. */
domid_t domid;
/* ISA device identification, by ISA IRQ (0-15). */
uint8_t isa_irq;
/* Assertion level (0 = unasserted, 1 = asserted). */
uint8_t level;
};
typedef struct xen_hvm_set_isa_irq_level xen_hvm_set_isa_irq_level_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_set_isa_irq_level_t);
#define HVMOP_set_pci_link_route 4
struct xen_hvm_set_pci_link_route {
/* Domain to be updated. */
domid_t domid;
/* PCI link identifier (0-3). */
uint8_t link;
/* ISA IRQ (1-15), or 0 (disable link). */
uint8_t isa_irq;
};
typedef struct xen_hvm_set_pci_link_route xen_hvm_set_pci_link_route_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_set_pci_link_route_t);
/* Flushes all VCPU TLBs: @arg must be NULL. */
#define HVMOP_flush_tlbs 5
typedef enum {
HVMMEM_ram_rw, /* Normal read/write guest RAM */
HVMMEM_ram_ro, /* Read-only; writes are discarded */
HVMMEM_mmio_dm, /* Reads and write go to the device model */
} hvmmem_type_t;
/* Following tools-only interfaces may change in future. */
#if defined(__XEN__) || defined(__XEN_TOOLS__)
/* Track dirty VRAM. */
#define HVMOP_track_dirty_vram 6
struct xen_hvm_track_dirty_vram {
/* Domain to be tracked. */
domid_t domid;
/* First pfn to track. */
uint64_aligned_t first_pfn;
/* Number of pages to track. */
uint64_aligned_t nr;
/* OUT variable. */
/* Dirty bitmap buffer. */
XEN_GUEST_HANDLE_64(uint8) dirty_bitmap;
};
typedef struct xen_hvm_track_dirty_vram xen_hvm_track_dirty_vram_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_track_dirty_vram_t);
/* Notify that some pages got modified by the Device Model. */
#define HVMOP_modified_memory 7
struct xen_hvm_modified_memory {
/* Domain to be updated. */
domid_t domid;
/* First pfn. */
uint64_aligned_t first_pfn;
/* Number of pages. */
uint64_aligned_t nr;
};
typedef struct xen_hvm_modified_memory xen_hvm_modified_memory_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_modified_memory_t);
#define HVMOP_set_mem_type 8
/* Notify that a region of memory is to be treated in a specific way. */
struct xen_hvm_set_mem_type {
/* Domain to be updated. */
domid_t domid;
/* Memory type */
uint16_t hvmmem_type;
/* Number of pages. */
uint32_t nr;
/* First pfn. */
uint64_aligned_t first_pfn;
};
typedef struct xen_hvm_set_mem_type xen_hvm_set_mem_type_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_set_mem_type_t);
#endif /* defined(__XEN__) || defined(__XEN_TOOLS__) */
/* Hint from PV drivers for pagetable destruction. */
#define HVMOP_pagetable_dying 9
struct xen_hvm_pagetable_dying {
/* Domain with a pagetable about to be destroyed. */
domid_t domid;
uint16_t pad[3]; /* align next field on 8-byte boundary */
/* guest physical address of the toplevel pagetable dying */
uint64_t gpa;
};
typedef struct xen_hvm_pagetable_dying xen_hvm_pagetable_dying_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_pagetable_dying_t);
/* Get the current Xen time, in nanoseconds since system boot. */
#define HVMOP_get_time 10
struct xen_hvm_get_time {
uint64_t now; /* OUT */
};
typedef struct xen_hvm_get_time xen_hvm_get_time_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_get_time_t);
#define HVMOP_xentrace 11
struct xen_hvm_xentrace {
uint16_t event, extra_bytes;
uint8_t extra[TRACE_EXTRA_MAX * sizeof(uint32_t)];
};
typedef struct xen_hvm_xentrace xen_hvm_xentrace_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_xentrace_t);
/* Following tools-only interfaces may change in future. */
#if defined(__XEN__) || defined(__XEN_TOOLS__)
#define HVMOP_set_mem_access 12
typedef enum {
HVMMEM_access_n,
HVMMEM_access_r,
HVMMEM_access_w,
HVMMEM_access_rw,
HVMMEM_access_x,
HVMMEM_access_rx,
HVMMEM_access_wx,
HVMMEM_access_rwx,
HVMMEM_access_rx2rw, /* Page starts off as r-x, but automatically
* change to r-w on a write */
HVMMEM_access_n2rwx, /* Log access: starts off as n, automatically
* goes to rwx, generating an event without
* pausing the vcpu */
HVMMEM_access_default /* Take the domain default */
} hvmmem_access_t;
/* Notify that a region of memory is to have specific access types */
struct xen_hvm_set_mem_access {
/* Domain to be updated. */
domid_t domid;
/* Memory type */
uint16_t hvmmem_access; /* hvm_access_t */
/* Number of pages, ignored on setting default access */
uint32_t nr;
/* First pfn, or ~0ull to set the default access for new pages */
uint64_aligned_t first_pfn;
};
typedef struct xen_hvm_set_mem_access xen_hvm_set_mem_access_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_set_mem_access_t);
#define HVMOP_get_mem_access 13
/* Get the specific access type for that region of memory */
struct xen_hvm_get_mem_access {
/* Domain to be queried. */
domid_t domid;
/* Memory type: OUT */
uint16_t hvmmem_access; /* hvm_access_t */
/* pfn, or ~0ull for default access for new pages. IN */
uint64_aligned_t pfn;
};
typedef struct xen_hvm_get_mem_access xen_hvm_get_mem_access_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_get_mem_access_t);
#define HVMOP_inject_trap 14
/* Inject a trap into a VCPU, which will get taken up on the next
* scheduling of it. Note that the caller should know enough of the
* state of the CPU before injecting, to know what the effect of
* injecting the trap will be.
*/
struct xen_hvm_inject_trap {
/* Domain to be queried. */
domid_t domid;
/* VCPU */
uint32_t vcpuid;
/* Vector number */
uint32_t vector;
/* Trap type (HVMOP_TRAP_*) */
uint32_t type;
/* NB. This enumeration precisely matches hvm.h:X86_EVENTTYPE_* */
# define HVMOP_TRAP_ext_int 0 /* external interrupt */
# define HVMOP_TRAP_nmi 2 /* nmi */
# define HVMOP_TRAP_hw_exc 3 /* hardware exception */
# define HVMOP_TRAP_sw_int 4 /* software interrupt (CD nn) */
# define HVMOP_TRAP_pri_sw_exc 5 /* ICEBP (F1) */
# define HVMOP_TRAP_sw_exc 6 /* INT3 (CC), INTO (CE) */
/* Error code, or ~0u to skip */
uint32_t error_code;
/* Intruction length */
uint32_t insn_len;
/* CR2 for page faults */
uint64_aligned_t cr2;
};
typedef struct xen_hvm_inject_trap xen_hvm_inject_trap_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_inject_trap_t);
#endif /* defined(__XEN__) || defined(__XEN_TOOLS__) */
#define HVMOP_get_mem_type 15
/* Return hvmmem_type_t for the specified pfn. */
struct xen_hvm_get_mem_type {
/* Domain to be queried. */
domid_t domid;
/* OUT variable. */
uint16_t mem_type;
uint16_t pad[2]; /* align next field on 8-byte boundary */
/* IN variable. */
uint64_t pfn;
};
typedef struct xen_hvm_get_mem_type xen_hvm_get_mem_type_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_get_mem_type_t);
/* Following tools-only interfaces may change in future. */
#if defined(__XEN__) || defined(__XEN_TOOLS__)
/* MSI injection for emulated devices */
#define HVMOP_inject_msi 16
struct xen_hvm_inject_msi {
/* Domain to be injected */
domid_t domid;
/* Data -- lower 32 bits */
uint32_t data;
/* Address (0xfeexxxxx) */
uint64_t addr;
};
typedef struct xen_hvm_inject_msi xen_hvm_inject_msi_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_inject_msi_t);
#endif /* defined(__XEN__) || defined(__XEN_TOOLS__) */
#endif /* __XEN_PUBLIC_HVM_HVM_OP_H__ */

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/******************************************************************************
* hvm/hvm_xs_strings.h
*
* HVM xenstore strings used in HVMLOADER.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef __XEN_PUBLIC_HVM_HVM_XS_STRINGS_H__
#define __XEN_PUBLIC_HVM_HVM_XS_STRINGS_H__
#define HVM_XS_HVMLOADER "hvmloader"
#define HVM_XS_BIOS "hvmloader/bios"
#define HVM_XS_GENERATION_ID_ADDRESS "hvmloader/generation-id-address"
#define HVM_XS_ALLOW_MEMORY_RELOCATE "hvmloader/allow-memory-relocate"
/* The following values allow additional ACPI tables to be added to the
* virtual ACPI BIOS that hvmloader constructs. The values specify the guest
* physical address and length of a block of ACPI tables to add. The format of
* the block is simply concatenated raw tables (which specify their own length
* in the ACPI header).
*/
#define HVM_XS_ACPI_PT_ADDRESS "hvmloader/acpi/address"
#define HVM_XS_ACPI_PT_LENGTH "hvmloader/acpi/length"
/* Any number of SMBIOS types can be passed through to an HVM guest using
* the following xenstore values. The values specify the guest physical
* address and length of a block of SMBIOS structures for hvmloader to use.
* The block is formatted in the following way:
*
* <length><struct><length><struct>...
*
* Each length separator is a 32b integer indicating the length of the next
* SMBIOS structure. For DMTF defined types (0 - 121), the passed in struct
* will replace the default structure in hvmloader. In addition, any
* OEM/vendortypes (128 - 255) will all be added.
*/
#define HVM_XS_SMBIOS_PT_ADDRESS "hvmloader/smbios/address"
#define HVM_XS_SMBIOS_PT_LENGTH "hvmloader/smbios/length"
/* Set to 1 to enable SMBIOS default portable battery (type 22) values. */
#define HVM_XS_SMBIOS_DEFAULT_BATTERY "hvmloader/smbios/default_battery"
/* The following xenstore values are used to override some of the default
* string values in the SMBIOS table constructed in hvmloader.
*/
#define HVM_XS_BIOS_STRINGS "bios-strings"
#define HVM_XS_BIOS_VENDOR "bios-strings/bios-vendor"
#define HVM_XS_BIOS_VERSION "bios-strings/bios-version"
#define HVM_XS_SYSTEM_MANUFACTURER "bios-strings/system-manufacturer"
#define HVM_XS_SYSTEM_PRODUCT_NAME "bios-strings/system-product-name"
#define HVM_XS_SYSTEM_VERSION "bios-strings/system-version"
#define HVM_XS_SYSTEM_SERIAL_NUMBER "bios-strings/system-serial-number"
#define HVM_XS_ENCLOSURE_MANUFACTURER "bios-strings/enclosure-manufacturer"
#define HVM_XS_ENCLOSURE_SERIAL_NUMBER "bios-strings/enclosure-serial-number"
#define HVM_XS_BATTERY_MANUFACTURER "bios-strings/battery-manufacturer"
#define HVM_XS_BATTERY_DEVICE_NAME "bios-strings/battery-device-name"
/* 1 to 99 OEM strings can be set in xenstore using values of the form
* below. These strings will be loaded into the SMBIOS type 11 structure.
*/
#define HVM_XS_OEM_STRINGS "bios-strings/oem-%d"
#endif /* __XEN_PUBLIC_HVM_HVM_XS_STRINGS_H__ */

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/*
* ioreq.h: I/O request definitions for device models
* Copyright (c) 2004, Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef _IOREQ_H_
#define _IOREQ_H_
#define IOREQ_READ 1
#define IOREQ_WRITE 0
#define STATE_IOREQ_NONE 0
#define STATE_IOREQ_READY 1
#define STATE_IOREQ_INPROCESS 2
#define STATE_IORESP_READY 3
#define IOREQ_TYPE_PIO 0 /* pio */
#define IOREQ_TYPE_COPY 1 /* mmio ops */
#define IOREQ_TYPE_TIMEOFFSET 7
#define IOREQ_TYPE_INVALIDATE 8 /* mapcache */
/*
* VMExit dispatcher should cooperate with instruction decoder to
* prepare this structure and notify service OS and DM by sending
* virq
*/
struct ioreq {
uint64_t addr; /* physical address */
uint64_t data; /* data (or paddr of data) */
uint32_t count; /* for rep prefixes */
uint32_t size; /* size in bytes */
uint32_t vp_eport; /* evtchn for notifications to/from device model */
uint16_t _pad0;
uint8_t state:4;
uint8_t data_is_ptr:1; /* if 1, data above is the guest paddr
* of the real data to use. */
uint8_t dir:1; /* 1=read, 0=write */
uint8_t df:1;
uint8_t _pad1:1;
uint8_t type; /* I/O type */
};
typedef struct ioreq ioreq_t;
struct shared_iopage {
struct ioreq vcpu_ioreq[1];
};
typedef struct shared_iopage shared_iopage_t;
struct buf_ioreq {
uint8_t type; /* I/O type */
uint8_t pad:1;
uint8_t dir:1; /* 1=read, 0=write */
uint8_t size:2; /* 0=>1, 1=>2, 2=>4, 3=>8. If 8, use two buf_ioreqs */
uint32_t addr:20;/* physical address */
uint32_t data; /* data */
};
typedef struct buf_ioreq buf_ioreq_t;
#define IOREQ_BUFFER_SLOT_NUM 511 /* 8 bytes each, plus 2 4-byte indexes */
struct buffered_iopage {
unsigned int read_pointer;
unsigned int write_pointer;
buf_ioreq_t buf_ioreq[IOREQ_BUFFER_SLOT_NUM];
}; /* NB. Size of this structure must be no greater than one page. */
typedef struct buffered_iopage buffered_iopage_t;
/*
* ACPI Control/Event register locations. Location is controlled by a
* version number in HVM_PARAM_ACPI_IOPORTS_LOCATION.
*/
/* Version 0 (default): Traditional Xen locations. */
#define ACPI_PM1A_EVT_BLK_ADDRESS_V0 0x1f40
#define ACPI_PM1A_CNT_BLK_ADDRESS_V0 (ACPI_PM1A_EVT_BLK_ADDRESS_V0 + 0x04)
#define ACPI_PM_TMR_BLK_ADDRESS_V0 (ACPI_PM1A_EVT_BLK_ADDRESS_V0 + 0x08)
#define ACPI_GPE0_BLK_ADDRESS_V0 (ACPI_PM_TMR_BLK_ADDRESS_V0 + 0x20)
#define ACPI_GPE0_BLK_LEN_V0 0x08
/* Version 1: Locations preferred by modern Qemu. */
#define ACPI_PM1A_EVT_BLK_ADDRESS_V1 0xb000
#define ACPI_PM1A_CNT_BLK_ADDRESS_V1 (ACPI_PM1A_EVT_BLK_ADDRESS_V1 + 0x04)
#define ACPI_PM_TMR_BLK_ADDRESS_V1 (ACPI_PM1A_EVT_BLK_ADDRESS_V1 + 0x08)
#define ACPI_GPE0_BLK_ADDRESS_V1 0xafe0
#define ACPI_GPE0_BLK_LEN_V1 0x04
/* Compatibility definitions for the default location (version 0). */
#define ACPI_PM1A_EVT_BLK_ADDRESS ACPI_PM1A_EVT_BLK_ADDRESS_V0
#define ACPI_PM1A_CNT_BLK_ADDRESS ACPI_PM1A_CNT_BLK_ADDRESS_V0
#define ACPI_PM_TMR_BLK_ADDRESS ACPI_PM_TMR_BLK_ADDRESS_V0
#define ACPI_GPE0_BLK_ADDRESS ACPI_GPE0_BLK_ADDRESS_V0
#define ACPI_GPE0_BLK_LEN ACPI_GPE0_BLK_LEN_V0
#endif /* _IOREQ_H_ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef __XEN_PUBLIC_HVM_PARAMS_H__
#define __XEN_PUBLIC_HVM_PARAMS_H__
#include "hvm_op.h"
/*
* Parameter space for HVMOP_{set,get}_param.
*/
/*
* How should CPU0 event-channel notifications be delivered?
* val[63:56] == 0: val[55:0] is a delivery GSI (Global System Interrupt).
* val[63:56] == 1: val[55:0] is a delivery PCI INTx line, as follows:
* Domain = val[47:32], Bus = val[31:16],
* DevFn = val[15: 8], IntX = val[ 1: 0]
* val[63:56] == 2: val[7:0] is a vector number, check for
* XENFEAT_hvm_callback_vector to know if this delivery
* method is available.
* If val == 0 then CPU0 event-channel notifications are not delivered.
*/
#define HVM_PARAM_CALLBACK_IRQ 0
/*
* These are not used by Xen. They are here for convenience of HVM-guest
* xenbus implementations.
*/
#define HVM_PARAM_STORE_PFN 1
#define HVM_PARAM_STORE_EVTCHN 2
#define HVM_PARAM_PAE_ENABLED 4
#define HVM_PARAM_IOREQ_PFN 5
#define HVM_PARAM_BUFIOREQ_PFN 6
#define HVM_PARAM_BUFIOREQ_EVTCHN 26
#if defined(__i386__) || defined(__x86_64__)
/* Expose Viridian interfaces to this HVM guest? */
#define HVM_PARAM_VIRIDIAN 9
#endif
/*
* Set mode for virtual timers (currently x86 only):
* delay_for_missed_ticks (default):
* Do not advance a vcpu's time beyond the correct delivery time for
* interrupts that have been missed due to preemption. Deliver missed
* interrupts when the vcpu is rescheduled and advance the vcpu's virtual
* time stepwise for each one.
* no_delay_for_missed_ticks:
* As above, missed interrupts are delivered, but guest time always tracks
* wallclock (i.e., real) time while doing so.
* no_missed_ticks_pending:
* No missed interrupts are held pending. Instead, to ensure ticks are
* delivered at some non-zero rate, if we detect missed ticks then the
* internal tick alarm is not disabled if the VCPU is preempted during the
* next tick period.
* one_missed_tick_pending:
* Missed interrupts are collapsed together and delivered as one 'late tick'.
* Guest time always tracks wallclock (i.e., real) time.
*/
#define HVM_PARAM_TIMER_MODE 10
#define HVMPTM_delay_for_missed_ticks 0
#define HVMPTM_no_delay_for_missed_ticks 1
#define HVMPTM_no_missed_ticks_pending 2
#define HVMPTM_one_missed_tick_pending 3
/* Boolean: Enable virtual HPET (high-precision event timer)? (x86-only) */
#define HVM_PARAM_HPET_ENABLED 11
/* Identity-map page directory used by Intel EPT when CR0.PG=0. */
#define HVM_PARAM_IDENT_PT 12
/* Device Model domain, defaults to 0. */
#define HVM_PARAM_DM_DOMAIN 13
/* ACPI S state: currently support S0 and S3 on x86. */
#define HVM_PARAM_ACPI_S_STATE 14
/* TSS used on Intel when CR0.PE=0. */
#define HVM_PARAM_VM86_TSS 15
/* Boolean: Enable aligning all periodic vpts to reduce interrupts */
#define HVM_PARAM_VPT_ALIGN 16
/* Console debug shared memory ring and event channel */
#define HVM_PARAM_CONSOLE_PFN 17
#define HVM_PARAM_CONSOLE_EVTCHN 18
/*
* Select location of ACPI PM1a and TMR control blocks. Currently two locations
* are supported, specified by version 0 or 1 in this parameter:
* - 0: default, use the old addresses
* PM1A_EVT == 0x1f40; PM1A_CNT == 0x1f44; PM_TMR == 0x1f48
* - 1: use the new default qemu addresses
* PM1A_EVT == 0xb000; PM1A_CNT == 0xb004; PM_TMR == 0xb008
* You can find these address definitions in <hvm/ioreq.h>
*/
#define HVM_PARAM_ACPI_IOPORTS_LOCATION 19
/* Enable blocking memory events, async or sync (pause vcpu until response)
* onchangeonly indicates messages only on a change of value */
#define HVM_PARAM_MEMORY_EVENT_CR0 20
#define HVM_PARAM_MEMORY_EVENT_CR3 21
#define HVM_PARAM_MEMORY_EVENT_CR4 22
#define HVM_PARAM_MEMORY_EVENT_INT3 23
#define HVM_PARAM_MEMORY_EVENT_SINGLE_STEP 25
#define HVM_PARAM_MEMORY_EVENT_MSR 30
#define HVMPME_MODE_MASK (3 << 0)
#define HVMPME_mode_disabled 0
#define HVMPME_mode_async 1
#define HVMPME_mode_sync 2
#define HVMPME_onchangeonly (1 << 2)
/* Boolean: Enable nestedhvm (hvm only) */
#define HVM_PARAM_NESTEDHVM 24
/* Params for the mem event rings */
#define HVM_PARAM_PAGING_RING_PFN 27
#define HVM_PARAM_ACCESS_RING_PFN 28
#define HVM_PARAM_SHARING_RING_PFN 29
/* SHUTDOWN_* action in case of a triple fault */
#define HVM_PARAM_TRIPLE_FAULT_REASON 31
#define HVM_NR_PARAMS 32
#endif /* __XEN_PUBLIC_HVM_PARAMS_H__ */

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/*
* pvdrivers.h: Register of PV drivers product numbers.
* Copyright (c) 2012, Citrix Systems Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef _XEN_PUBLIC_PVDRIVERS_H_
#define _XEN_PUBLIC_PVDRIVERS_H_
/*
* This is the master registry of product numbers for
* PV drivers.
* If you need a new product number allocating, please
* post to xen-devel@lists.xensource.com. You should NOT use
* a product number without allocating one.
* If you maintain a separate versioning and distribution path
* for PV drivers you should have a separate product number so
* that your drivers can be separated from others.
*
* During development, you may use the product ID to
* indicate a driver which is yet to be released.
*/
#define PVDRIVERS_PRODUCT_LIST(EACH) \
EACH("xensource-windows", 0x0001) /* Citrix */ \
EACH("gplpv-windows", 0x0002) /* James Harper */ \
EACH("linux", 0x0003) \
EACH("experimental", 0xffff)
#endif /* _XEN_PUBLIC_PVDRIVERS_H_ */

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/*
* hvm/save.h
*
* Structure definitions for HVM state that is held by Xen and must
* be saved along with the domain's memory and device-model state.
*
* Copyright (c) 2007 XenSource Ltd.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef __XEN_PUBLIC_HVM_SAVE_H__
#define __XEN_PUBLIC_HVM_SAVE_H__
/*
* Structures in this header *must* have the same layout in 32bit
* and 64bit environments: this means that all fields must be explicitly
* sized types and aligned to their sizes, and the structs must be
* a multiple of eight bytes long.
*
* Only the state necessary for saving and restoring (i.e. fields
* that are analogous to actual hardware state) should go in this file.
* Internal mechanisms should be kept in Xen-private headers.
*/
#if !defined(__GNUC__) || defined(__STRICT_ANSI__)
#error "Anonymous structs/unions are a GNU extension."
#endif
/*
* Each entry is preceded by a descriptor giving its type and length
*/
struct hvm_save_descriptor {
uint16_t typecode; /* Used to demux the various types below */
uint16_t instance; /* Further demux within a type */
uint32_t length; /* In bytes, *not* including this descriptor */
};
/*
* Each entry has a datatype associated with it: for example, the CPU state
* is saved as a HVM_SAVE_TYPE(CPU), which has HVM_SAVE_LENGTH(CPU),
* and is identified by a descriptor with typecode HVM_SAVE_CODE(CPU).
* DECLARE_HVM_SAVE_TYPE binds these things together with some type-system
* ugliness.
*/
#ifdef __XEN__
# define DECLARE_HVM_SAVE_TYPE_COMPAT(_x, _code, _type, _ctype, _fix) \
static inline int __HVM_SAVE_FIX_COMPAT_##_x(void *h) { return _fix(h); } \
struct __HVM_SAVE_TYPE_##_x { _type t; char c[_code]; char cpt[2];}; \
struct __HVM_SAVE_TYPE_COMPAT_##_x { _ctype t; }
# include <xen/lib.h> /* BUG() */
# define DECLARE_HVM_SAVE_TYPE(_x, _code, _type) \
static inline int __HVM_SAVE_FIX_COMPAT_##_x(void *h) { BUG(); return -1; } \
struct __HVM_SAVE_TYPE_##_x { _type t; char c[_code]; char cpt[1];}; \
struct __HVM_SAVE_TYPE_COMPAT_##_x { _type t; }
#else
# define DECLARE_HVM_SAVE_TYPE_COMPAT(_x, _code, _type, _ctype, _fix) \
struct __HVM_SAVE_TYPE_##_x { _type t; char c[_code]; char cpt[2];}
# define DECLARE_HVM_SAVE_TYPE(_x, _code, _type) \
struct __HVM_SAVE_TYPE_##_x { _type t; char c[_code]; char cpt[1];}
#endif
#define HVM_SAVE_TYPE(_x) typeof (((struct __HVM_SAVE_TYPE_##_x *)(0))->t)
#define HVM_SAVE_LENGTH(_x) (sizeof (HVM_SAVE_TYPE(_x)))
#define HVM_SAVE_CODE(_x) (sizeof (((struct __HVM_SAVE_TYPE_##_x *)(0))->c))
#ifdef __XEN__
# define HVM_SAVE_TYPE_COMPAT(_x) typeof (((struct __HVM_SAVE_TYPE_COMPAT_##_x *)(0))->t)
# define HVM_SAVE_LENGTH_COMPAT(_x) (sizeof (HVM_SAVE_TYPE_COMPAT(_x)))
# define HVM_SAVE_HAS_COMPAT(_x) (sizeof (((struct __HVM_SAVE_TYPE_##_x *)(0))->cpt)-1)
# define HVM_SAVE_FIX_COMPAT(_x, _dst) __HVM_SAVE_FIX_COMPAT_##_x(_dst)
#endif
/*
* The series of save records is teminated by a zero-type, zero-length
* descriptor.
*/
struct hvm_save_end {};
DECLARE_HVM_SAVE_TYPE(END, 0, struct hvm_save_end);
#if defined(__i386__) || defined(__x86_64__)
#include "../arch-x86/hvm/save.h"
#elif defined(__arm__) || defined(__aarch64__)
#include "../arch-arm/hvm/save.h"
#else
#error "unsupported architecture"
#endif
#endif /* __XEN_PUBLIC_HVM_SAVE_H__ */

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/******************************************************************************
* blkif.h
*
* Unified block-device I/O interface for Xen guest OSes.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2003-2004, Keir Fraser
* Copyright (c) 2012, Spectra Logic Corporation
*/
#ifndef __XEN_PUBLIC_IO_BLKIF_H__
#define __XEN_PUBLIC_IO_BLKIF_H__
#include "ring.h"
#include "../grant_table.h"
/*
* Front->back notifications: When enqueuing a new request, sending a
* notification can be made conditional on req_event (i.e., the generic
* hold-off mechanism provided by the ring macros). Backends must set
* req_event appropriately (e.g., using RING_FINAL_CHECK_FOR_REQUESTS()).
*
* Back->front notifications: When enqueuing a new response, sending a
* notification can be made conditional on rsp_event (i.e., the generic
* hold-off mechanism provided by the ring macros). Frontends must set
* rsp_event appropriately (e.g., using RING_FINAL_CHECK_FOR_RESPONSES()).
*/
#ifndef blkif_vdev_t
#define blkif_vdev_t uint16_t
#endif
#define blkif_sector_t uint64_t
/*
* Feature and Parameter Negotiation
* =================================
* The two halves of a Xen block driver utilize nodes within the XenStore to
* communicate capabilities and to negotiate operating parameters. This
* section enumerates these nodes which reside in the respective front and
* backend portions of the XenStore, following the XenBus convention.
*
* All data in the XenStore is stored as strings. Nodes specifying numeric
* values are encoded in decimal. Integer value ranges listed below are
* expressed as fixed sized integer types capable of storing the conversion
* of a properly formated node string, without loss of information.
*
* Any specified default value is in effect if the corresponding XenBus node
* is not present in the XenStore.
*
* XenStore nodes in sections marked "PRIVATE" are solely for use by the
* driver side whose XenBus tree contains them.
*
* XenStore nodes marked "DEPRECATED" in their notes section should only be
* used to provide interoperability with legacy implementations.
*
* See the XenBus state transition diagram below for details on when XenBus
* nodes must be published and when they can be queried.
*
*****************************************************************************
* Backend XenBus Nodes
*****************************************************************************
*
*------------------ Backend Device Identification (PRIVATE) ------------------
*
* mode
* Values: "r" (read only), "w" (writable)
*
* The read or write access permissions to the backing store to be
* granted to the frontend.
*
* params
* Values: string
*
* A free formatted string providing sufficient information for the
* backend driver to open the backing device. (e.g. the path to the
* file or block device representing the backing store.)
*
* type
* Values: "file", "phy", "tap"
*
* The type of the backing device/object.
*
*--------------------------------- Features ---------------------------------
*
* feature-barrier
* Values: 0/1 (boolean)
* Default Value: 0
*
* A value of "1" indicates that the backend can process requests
* containing the BLKIF_OP_WRITE_BARRIER request opcode. Requests
* of this type may still be returned at any time with the
* BLKIF_RSP_EOPNOTSUPP result code.
*
* feature-flush-cache
* Values: 0/1 (boolean)
* Default Value: 0
*
* A value of "1" indicates that the backend can process requests
* containing the BLKIF_OP_FLUSH_DISKCACHE request opcode. Requests
* of this type may still be returned at any time with the
* BLKIF_RSP_EOPNOTSUPP result code.
*
* feature-discard
* Values: 0/1 (boolean)
* Default Value: 0
*
* A value of "1" indicates that the backend can process requests
* containing the BLKIF_OP_DISCARD request opcode. Requests
* of this type may still be returned at any time with the
* BLKIF_RSP_EOPNOTSUPP result code.
*
* feature-persistent
* Values: 0/1 (boolean)
* Default Value: 0
* Notes: 7
*
* A value of "1" indicates that the backend can keep the grants used
* by the frontend driver mapped, so the same set of grants should be
* used in all transactions. The maximum number of grants the backend
* can map persistently depends on the implementation, but ideally it
* should be RING_SIZE * BLKIF_MAX_SEGMENTS_PER_REQUEST. Using this
* feature the backend doesn't need to unmap each grant, preventing
* costly TLB flushes. The backend driver should only map grants
* persistently if the frontend supports it. If a backend driver chooses
* to use the persistent protocol when the frontend doesn't support it,
* it will probably hit the maximum number of persistently mapped grants
* (due to the fact that the frontend won't be reusing the same grants),
* and fall back to non-persistent mode. Backend implementations may
* shrink or expand the number of persistently mapped grants without
* notifying the frontend depending on memory constraints (this might
* cause a performance degradation).
*
* If a backend driver wants to limit the maximum number of persistently
* mapped grants to a value less than RING_SIZE *
* BLKIF_MAX_SEGMENTS_PER_REQUEST a LRU strategy should be used to
* discard the grants that are less commonly used. Using a LRU in the
* backend driver paired with a LIFO queue in the frontend will
* allow us to have better performance in this scenario.
*
*----------------------- Request Transport Parameters ------------------------
*
* max-ring-page-order
* Values: <uint32_t>
* Default Value: 0
* Notes: 1, 3
*
* The maximum supported size of the request ring buffer in units of
* lb(machine pages). (e.g. 0 == 1 page, 1 = 2 pages, 2 == 4 pages,
* etc.).
*
* max-ring-pages
* Values: <uint32_t>
* Default Value: 1
* Notes: DEPRECATED, 2, 3
*
* The maximum supported size of the request ring buffer in units of
* machine pages. The value must be a power of 2.
*
*------------------------- Backend Device Properties -------------------------
*
* discard-aligment
* Values: <uint32_t>
* Default Value: 0
* Notes: 4, 5
*
* The offset, in bytes from the beginning of the virtual block device,
* to the first, addressable, discard extent on the underlying device.
*
* discard-granularity
* Values: <uint32_t>
* Default Value: <"sector-size">
* Notes: 4
*
* The size, in bytes, of the individually addressable discard extents
* of the underlying device.
*
* discard-secure
* Values: 0/1 (boolean)
* Default Value: 0
*
* A value of "1" indicates that the backend can process BLKIF_OP_DISCARD
* requests with the BLKIF_DISCARD_SECURE flag set.
*
* info
* Values: <uint32_t> (bitmap)
*
* A collection of bit flags describing attributes of the backing
* device. The VDISK_* macros define the meaning of each bit
* location.
*
* sector-size
* Values: <uint32_t>
*
* The logical sector size, in bytes, of the backend device.
*
* physical-sector-size
* Values: <uint32_t>
*
* The physical sector size, in bytes, of the backend device.
*
* sectors
* Values: <uint64_t>
*
* The size of the backend device, expressed in units of its logical
* sector size ("sector-size").
*
*****************************************************************************
* Frontend XenBus Nodes
*****************************************************************************
*
*----------------------- Request Transport Parameters -----------------------
*
* event-channel
* Values: <uint32_t>
*
* The identifier of the Xen event channel used to signal activity
* in the ring buffer.
*
* ring-ref
* Values: <uint32_t>
* Notes: 6
*
* The Xen grant reference granting permission for the backend to map
* the sole page in a single page sized ring buffer.
*
* ring-ref%u
* Values: <uint32_t>
* Notes: 6
*
* For a frontend providing a multi-page ring, a "number of ring pages"
* sized list of nodes, each containing a Xen grant reference granting
* permission for the backend to map the page of the ring located
* at page index "%u". Page indexes are zero based.
*
* protocol
* Values: string (XEN_IO_PROTO_ABI_*)
* Default Value: XEN_IO_PROTO_ABI_NATIVE
*
* The machine ABI rules governing the format of all ring request and
* response structures.
*
* ring-page-order
* Values: <uint32_t>
* Default Value: 0
* Maximum Value: MAX(ffs(max-ring-pages) - 1, max-ring-page-order)
* Notes: 1, 3
*
* The size of the frontend allocated request ring buffer in units
* of lb(machine pages). (e.g. 0 == 1 page, 1 = 2 pages, 2 == 4 pages,
* etc.).
*
* num-ring-pages
* Values: <uint32_t>
* Default Value: 1
* Maximum Value: MAX(max-ring-pages,(0x1 << max-ring-page-order))
* Notes: DEPRECATED, 2, 3
*
* The size of the frontend allocated request ring buffer in units of
* machine pages. The value must be a power of 2.
*
* feature-persistent
* Values: 0/1 (boolean)
* Default Value: 0
* Notes: 7, 8, 9
*
* A value of "1" indicates that the frontend will reuse the same grants
* for all transactions, allowing the backend to map them with write
* access (even when it should be read-only). If the frontend hits the
* maximum number of allowed persistently mapped grants, it can fallback
* to non persistent mode. This will cause a performance degradation,
* since the the backend driver will still try to map those grants
* persistently. Since the persistent grants protocol is compatible with
* the previous protocol, a frontend driver can choose to work in
* persistent mode even when the backend doesn't support it.
*
* It is recommended that the frontend driver stores the persistently
* mapped grants in a LIFO queue, so a subset of all persistently mapped
* grants gets used commonly. This is done in case the backend driver
* decides to limit the maximum number of persistently mapped grants
* to a value less than RING_SIZE * BLKIF_MAX_SEGMENTS_PER_REQUEST.
*
*------------------------- Virtual Device Properties -------------------------
*
* device-type
* Values: "disk", "cdrom", "floppy", etc.
*
* virtual-device
* Values: <uint32_t>
*
* A value indicating the physical device to virtualize within the
* frontend's domain. (e.g. "The first ATA disk", "The third SCSI
* disk", etc.)
*
* See docs/misc/vbd-interface.txt for details on the format of this
* value.
*
* Notes
* -----
* (1) Multi-page ring buffer scheme first developed in the Citrix XenServer
* PV drivers.
* (2) Multi-page ring buffer scheme first used in some RedHat distributions
* including a distribution deployed on certain nodes of the Amazon
* EC2 cluster.
* (3) Support for multi-page ring buffers was implemented independently,
* in slightly different forms, by both Citrix and RedHat/Amazon.
* For full interoperability, block front and backends should publish
* identical ring parameters, adjusted for unit differences, to the
* XenStore nodes used in both schemes.
* (4) Devices that support discard functionality may internally allocate
* space (discardable extents) in units that are larger than the
* exported logical block size.
* (5) The discard-alignment parameter allows a physical device to be
* partitioned into virtual devices that do not necessarily begin or
* end on a discardable extent boundary.
* (6) When there is only a single page allocated to the request ring,
* 'ring-ref' is used to communicate the grant reference for this
* page to the backend. When using a multi-page ring, the 'ring-ref'
* node is not created. Instead 'ring-ref0' - 'ring-refN' are used.
* (7) When using persistent grants data has to be copied from/to the page
* where the grant is currently mapped. The overhead of doing this copy
* however doesn't suppress the speed improvement of not having to unmap
* the grants.
* (8) The frontend driver has to allow the backend driver to map all grants
* with write access, even when they should be mapped read-only, since
* further requests may reuse these grants and require write permissions.
* (9) Linux implementation doesn't have a limit on the maximum number of
* grants that can be persistently mapped in the frontend driver, but
* due to the frontent driver implementation it should never be bigger
* than RING_SIZE * BLKIF_MAX_SEGMENTS_PER_REQUEST.
*/
/*
* STATE DIAGRAMS
*
*****************************************************************************
* Startup *
*****************************************************************************
*
* Tool stack creates front and back nodes with state XenbusStateInitialising.
*
* Front Back
* ================================= =====================================
* XenbusStateInitialising XenbusStateInitialising
* o Query virtual device o Query backend device identification
* properties. data.
* o Setup OS device instance. o Open and validate backend device.
* o Publish backend features and
* transport parameters.
* |
* |
* V
* XenbusStateInitWait
*
* o Query backend features and
* transport parameters.
* o Allocate and initialize the
* request ring.
* o Publish transport parameters
* that will be in effect during
* this connection.
* |
* |
* V
* XenbusStateInitialised
*
* o Query frontend transport parameters.
* o Connect to the request ring and
* event channel.
* o Publish backend device properties.
* |
* |
* V
* XenbusStateConnected
*
* o Query backend device properties.
* o Finalize OS virtual device
* instance.
* |
* |
* V
* XenbusStateConnected
*
* Note: Drivers that do not support any optional features, or the negotiation
* of transport parameters, can skip certain states in the state machine:
*
* o A frontend may transition to XenbusStateInitialised without
* waiting for the backend to enter XenbusStateInitWait. In this
* case, default transport parameters are in effect and any
* transport parameters published by the frontend must contain
* their default values.
*
* o A backend may transition to XenbusStateInitialised, bypassing
* XenbusStateInitWait, without waiting for the frontend to first
* enter the XenbusStateInitialised state. In this case, default
* transport parameters are in effect and any transport parameters
* published by the backend must contain their default values.
*
* Drivers that support optional features and/or transport parameter
* negotiation must tolerate these additional state transition paths.
* In general this means performing the work of any skipped state
* transition, if it has not already been performed, in addition to the
* work associated with entry into the current state.
*/
/*
* REQUEST CODES.
*/
#define BLKIF_OP_READ 0
#define BLKIF_OP_WRITE 1
/*
* All writes issued prior to a request with the BLKIF_OP_WRITE_BARRIER
* operation code ("barrier request") must be completed prior to the
* execution of the barrier request. All writes issued after the barrier
* request must not execute until after the completion of the barrier request.
*
* Optional. See "feature-barrier" XenBus node documentation above.
*/
#define BLKIF_OP_WRITE_BARRIER 2
/*
* Commit any uncommitted contents of the backing device's volatile cache
* to stable storage.
*
* Optional. See "feature-flush-cache" XenBus node documentation above.
*/
#define BLKIF_OP_FLUSH_DISKCACHE 3
/*
* Used in SLES sources for device specific command packet
* contained within the request. Reserved for that purpose.
*/
#define BLKIF_OP_RESERVED_1 4
/*
* Indicate to the backend device that a region of storage is no longer in
* use, and may be discarded at any time without impact to the client. If
* the BLKIF_DISCARD_SECURE flag is set on the request, all copies of the
* discarded region on the device must be rendered unrecoverable before the
* command returns.
*
* This operation is analogous to performing a trim (ATA) or unamp (SCSI),
* command on a native device.
*
* More information about trim/unmap operations can be found at:
* http://t13.org/Documents/UploadedDocuments/docs2008/
* e07154r6-Data_Set_Management_Proposal_for_ATA-ACS2.doc
* http://www.seagate.com/staticfiles/support/disc/manuals/
* Interface%20manuals/100293068c.pdf
*
* Optional. See "feature-discard", "discard-alignment",
* "discard-granularity", and "discard-secure" in the XenBus node
* documentation above.
*/
#define BLKIF_OP_DISCARD 5
/*
* Maximum scatter/gather segments per request.
* This is carefully chosen so that sizeof(blkif_ring_t) <= PAGE_SIZE.
* NB. This could be 12 if the ring indexes weren't stored in the same page.
*/
#define BLKIF_MAX_SEGMENTS_PER_REQUEST 11
/*
* NB. first_sect and last_sect in blkif_request_segment, as well as
* sector_number in blkif_request, are always expressed in 512-byte units.
* However they must be properly aligned to the real sector size of the
* physical disk, which is reported in the "physical-sector-size" node in
* the backend xenbus info. Also the xenbus "sectors" node is expressed in
* 512-byte units.
*/
struct blkif_request_segment {
grant_ref_t gref; /* reference to I/O buffer frame */
/* @first_sect: first sector in frame to transfer (inclusive). */
/* @last_sect: last sector in frame to transfer (inclusive). */
uint8_t first_sect, last_sect;
};
/*
* Starting ring element for any I/O request.
*/
struct blkif_request {
uint8_t operation; /* BLKIF_OP_??? */
uint8_t nr_segments; /* number of segments */
blkif_vdev_t handle; /* only for read/write requests */
uint64_t id; /* private guest value, echoed in resp */
blkif_sector_t sector_number;/* start sector idx on disk (r/w only) */
struct blkif_request_segment seg[BLKIF_MAX_SEGMENTS_PER_REQUEST];
};
typedef struct blkif_request blkif_request_t;
/*
* Cast to this structure when blkif_request.operation == BLKIF_OP_DISCARD
* sizeof(struct blkif_request_discard) <= sizeof(struct blkif_request)
*/
struct blkif_request_discard {
uint8_t operation; /* BLKIF_OP_DISCARD */
uint8_t flag; /* BLKIF_DISCARD_SECURE or zero */
#define BLKIF_DISCARD_SECURE (1<<0) /* ignored if discard-secure=0 */
blkif_vdev_t handle; /* same as for read/write requests */
uint64_t id; /* private guest value, echoed in resp */
blkif_sector_t sector_number;/* start sector idx on disk */
uint64_t nr_sectors; /* number of contiguous sectors to discard*/
};
typedef struct blkif_request_discard blkif_request_discard_t;
struct blkif_response {
uint64_t id; /* copied from request */
uint8_t operation; /* copied from request */
int16_t status; /* BLKIF_RSP_??? */
};
typedef struct blkif_response blkif_response_t;
/*
* STATUS RETURN CODES.
*/
/* Operation not supported (only happens on barrier writes). */
#define BLKIF_RSP_EOPNOTSUPP -2
/* Operation failed for some unspecified reason (-EIO). */
#define BLKIF_RSP_ERROR -1
/* Operation completed successfully. */
#define BLKIF_RSP_OKAY 0
/*
* Generate blkif ring structures and types.
*/
DEFINE_RING_TYPES(blkif, struct blkif_request, struct blkif_response);
#define VDISK_CDROM 0x1
#define VDISK_REMOVABLE 0x2
#define VDISK_READONLY 0x4
#endif /* __XEN_PUBLIC_IO_BLKIF_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* console.h
*
* Console I/O interface for Xen guest OSes.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2005, Keir Fraser
*/
#ifndef __XEN_PUBLIC_IO_CONSOLE_H__
#define __XEN_PUBLIC_IO_CONSOLE_H__
typedef uint32_t XENCONS_RING_IDX;
#define MASK_XENCONS_IDX(idx, ring) ((idx) & (sizeof(ring)-1))
struct xencons_interface {
char in[1024];
char out[2048];
XENCONS_RING_IDX in_cons, in_prod;
XENCONS_RING_IDX out_cons, out_prod;
};
#endif /* __XEN_PUBLIC_IO_CONSOLE_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/*
* fbif.h -- Xen virtual frame buffer device
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (C) 2005 Anthony Liguori <aliguori@us.ibm.com>
* Copyright (C) 2006 Red Hat, Inc., Markus Armbruster <armbru@redhat.com>
*/
#ifndef __XEN_PUBLIC_IO_FBIF_H__
#define __XEN_PUBLIC_IO_FBIF_H__
/* Out events (frontend -> backend) */
/*
* Out events may be sent only when requested by backend, and receipt
* of an unknown out event is an error.
*/
/* Event type 1 currently not used */
/*
* Framebuffer update notification event
* Capable frontend sets feature-update in xenstore.
* Backend requests it by setting request-update in xenstore.
*/
#define XENFB_TYPE_UPDATE 2
struct xenfb_update
{
uint8_t type; /* XENFB_TYPE_UPDATE */
int32_t x; /* source x */
int32_t y; /* source y */
int32_t width; /* rect width */
int32_t height; /* rect height */
};
/*
* Framebuffer resize notification event
* Capable backend sets feature-resize in xenstore.
*/
#define XENFB_TYPE_RESIZE 3
struct xenfb_resize
{
uint8_t type; /* XENFB_TYPE_RESIZE */
int32_t width; /* width in pixels */
int32_t height; /* height in pixels */
int32_t stride; /* stride in bytes */
int32_t depth; /* depth in bits */
int32_t offset; /* offset of the framebuffer in bytes */
};
#define XENFB_OUT_EVENT_SIZE 40
union xenfb_out_event
{
uint8_t type;
struct xenfb_update update;
struct xenfb_resize resize;
char pad[XENFB_OUT_EVENT_SIZE];
};
/* In events (backend -> frontend) */
/*
* Frontends should ignore unknown in events.
*/
/*
* Framebuffer refresh period advice
* Backend sends it to advise the frontend their preferred period of
* refresh. Frontends that keep the framebuffer constantly up-to-date
* just ignore it. Frontends that use the advice should immediately
* refresh the framebuffer (and send an update notification event if
* those have been requested), then use the update frequency to guide
* their periodical refreshs.
*/
#define XENFB_TYPE_REFRESH_PERIOD 1
#define XENFB_NO_REFRESH 0
struct xenfb_refresh_period
{
uint8_t type; /* XENFB_TYPE_UPDATE_PERIOD */
uint32_t period; /* period of refresh, in ms,
* XENFB_NO_REFRESH if no refresh is needed */
};
#define XENFB_IN_EVENT_SIZE 40
union xenfb_in_event
{
uint8_t type;
struct xenfb_refresh_period refresh_period;
char pad[XENFB_IN_EVENT_SIZE];
};
/* shared page */
#define XENFB_IN_RING_SIZE 1024
#define XENFB_IN_RING_LEN (XENFB_IN_RING_SIZE / XENFB_IN_EVENT_SIZE)
#define XENFB_IN_RING_OFFS 1024
#define XENFB_IN_RING(page) \
((union xenfb_in_event *)((char *)(page) + XENFB_IN_RING_OFFS))
#define XENFB_IN_RING_REF(page, idx) \
(XENFB_IN_RING((page))[(idx) % XENFB_IN_RING_LEN])
#define XENFB_OUT_RING_SIZE 2048
#define XENFB_OUT_RING_LEN (XENFB_OUT_RING_SIZE / XENFB_OUT_EVENT_SIZE)
#define XENFB_OUT_RING_OFFS (XENFB_IN_RING_OFFS + XENFB_IN_RING_SIZE)
#define XENFB_OUT_RING(page) \
((union xenfb_out_event *)((char *)(page) + XENFB_OUT_RING_OFFS))
#define XENFB_OUT_RING_REF(page, idx) \
(XENFB_OUT_RING((page))[(idx) % XENFB_OUT_RING_LEN])
struct xenfb_page
{
uint32_t in_cons, in_prod;
uint32_t out_cons, out_prod;
int32_t width; /* the width of the framebuffer (in pixels) */
int32_t height; /* the height of the framebuffer (in pixels) */
uint32_t line_length; /* the length of a row of pixels (in bytes) */
uint32_t mem_length; /* the length of the framebuffer (in bytes) */
uint8_t depth; /* the depth of a pixel (in bits) */
/*
* Framebuffer page directory
*
* Each directory page holds PAGE_SIZE / sizeof(*pd)
* framebuffer pages, and can thus map up to PAGE_SIZE *
* PAGE_SIZE / sizeof(*pd) bytes. With PAGE_SIZE == 4096 and
* sizeof(unsigned long) == 4/8, that's 4 Megs 32 bit and 2 Megs
* 64 bit. 256 directories give enough room for a 512 Meg
* framebuffer with a max resolution of 12,800x10,240. Should
* be enough for a while with room leftover for expansion.
*/
unsigned long pd[256];
};
/*
* Wart: xenkbd needs to know default resolution. Put it here until a
* better solution is found, but don't leak it to the backend.
*/
#ifdef __KERNEL__
#define XENFB_WIDTH 800
#define XENFB_HEIGHT 600
#define XENFB_DEPTH 32
#endif
#endif
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* fsif.h
*
* Interface to FS level split device drivers.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2007, Grzegorz Milos, <gm281@cam.ac.uk>.
*/
#ifndef __XEN_PUBLIC_IO_FSIF_H__
#define __XEN_PUBLIC_IO_FSIF_H__
#include "ring.h"
#include "../grant_table.h"
#define REQ_FILE_OPEN 1
#define REQ_FILE_CLOSE 2
#define REQ_FILE_READ 3
#define REQ_FILE_WRITE 4
#define REQ_STAT 5
#define REQ_FILE_TRUNCATE 6
#define REQ_REMOVE 7
#define REQ_RENAME 8
#define REQ_CREATE 9
#define REQ_DIR_LIST 10
#define REQ_CHMOD 11
#define REQ_FS_SPACE 12
#define REQ_FILE_SYNC 13
struct fsif_open_request {
grant_ref_t gref;
};
struct fsif_close_request {
uint32_t fd;
};
struct fsif_read_request {
uint32_t fd;
int32_t pad;
uint64_t len;
uint64_t offset;
grant_ref_t grefs[1]; /* Variable length */
};
struct fsif_write_request {
uint32_t fd;
int32_t pad;
uint64_t len;
uint64_t offset;
grant_ref_t grefs[1]; /* Variable length */
};
struct fsif_stat_request {
uint32_t fd;
};
/* This structure is a copy of some fields from stat structure, returned
* via the ring. */
struct fsif_stat_response {
int32_t stat_mode;
uint32_t stat_uid;
uint32_t stat_gid;
int32_t stat_ret;
int64_t stat_size;
int64_t stat_atime;
int64_t stat_mtime;
int64_t stat_ctime;
};
struct fsif_truncate_request {
uint32_t fd;
int32_t pad;
int64_t length;
};
struct fsif_remove_request {
grant_ref_t gref;
};
struct fsif_rename_request {
uint16_t old_name_offset;
uint16_t new_name_offset;
grant_ref_t gref;
};
struct fsif_create_request {
int8_t directory;
int8_t pad;
int16_t pad2;
int32_t mode;
grant_ref_t gref;
};
struct fsif_list_request {
uint32_t offset;
grant_ref_t gref;
};
#define NR_FILES_SHIFT 0
#define NR_FILES_SIZE 16 /* 16 bits for the number of files mask */
#define NR_FILES_MASK (((1ULL << NR_FILES_SIZE) - 1) << NR_FILES_SHIFT)
#define ERROR_SIZE 32 /* 32 bits for the error mask */
#define ERROR_SHIFT (NR_FILES_SIZE + NR_FILES_SHIFT)
#define ERROR_MASK (((1ULL << ERROR_SIZE) - 1) << ERROR_SHIFT)
#define HAS_MORE_SHIFT (ERROR_SHIFT + ERROR_SIZE)
#define HAS_MORE_FLAG (1ULL << HAS_MORE_SHIFT)
struct fsif_chmod_request {
uint32_t fd;
int32_t mode;
};
struct fsif_space_request {
grant_ref_t gref;
};
struct fsif_sync_request {
uint32_t fd;
};
/* FS operation request */
struct fsif_request {
uint8_t type; /* Type of the request */
uint8_t pad;
uint16_t id; /* Request ID, copied to the response */
uint32_t pad2;
union {
struct fsif_open_request fopen;
struct fsif_close_request fclose;
struct fsif_read_request fread;
struct fsif_write_request fwrite;
struct fsif_stat_request fstat;
struct fsif_truncate_request ftruncate;
struct fsif_remove_request fremove;
struct fsif_rename_request frename;
struct fsif_create_request fcreate;
struct fsif_list_request flist;
struct fsif_chmod_request fchmod;
struct fsif_space_request fspace;
struct fsif_sync_request fsync;
} u;
};
typedef struct fsif_request fsif_request_t;
/* FS operation response */
struct fsif_response {
uint16_t id;
uint16_t pad1;
uint32_t pad2;
union {
uint64_t ret_val;
struct fsif_stat_response fstat;
} u;
};
typedef struct fsif_response fsif_response_t;
#define FSIF_RING_ENTRY_SIZE 64
#define FSIF_NR_READ_GNTS ((FSIF_RING_ENTRY_SIZE - sizeof(struct fsif_read_request)) / \
sizeof(grant_ref_t) + 1)
#define FSIF_NR_WRITE_GNTS ((FSIF_RING_ENTRY_SIZE - sizeof(struct fsif_write_request)) / \
sizeof(grant_ref_t) + 1)
DEFINE_RING_TYPES(fsif, struct fsif_request, struct fsif_response);
#define STATE_INITIALISED "init"
#define STATE_READY "ready"
#define STATE_CLOSING "closing"
#define STATE_CLOSED "closed"
#endif

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/*
* kbdif.h -- Xen virtual keyboard/mouse
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (C) 2005 Anthony Liguori <aliguori@us.ibm.com>
* Copyright (C) 2006 Red Hat, Inc., Markus Armbruster <armbru@redhat.com>
*/
#ifndef __XEN_PUBLIC_IO_KBDIF_H__
#define __XEN_PUBLIC_IO_KBDIF_H__
/* In events (backend -> frontend) */
/*
* Frontends should ignore unknown in events.
*/
/* Pointer movement event */
#define XENKBD_TYPE_MOTION 1
/* Event type 2 currently not used */
/* Key event (includes pointer buttons) */
#define XENKBD_TYPE_KEY 3
/*
* Pointer position event
* Capable backend sets feature-abs-pointer in xenstore.
* Frontend requests ot instead of XENKBD_TYPE_MOTION by setting
* request-abs-update in xenstore.
*/
#define XENKBD_TYPE_POS 4
struct xenkbd_motion
{
uint8_t type; /* XENKBD_TYPE_MOTION */
int32_t rel_x; /* relative X motion */
int32_t rel_y; /* relative Y motion */
int32_t rel_z; /* relative Z motion (wheel) */
};
struct xenkbd_key
{
uint8_t type; /* XENKBD_TYPE_KEY */
uint8_t pressed; /* 1 if pressed; 0 otherwise */
uint32_t keycode; /* KEY_* from linux/input.h */
};
struct xenkbd_position
{
uint8_t type; /* XENKBD_TYPE_POS */
int32_t abs_x; /* absolute X position (in FB pixels) */
int32_t abs_y; /* absolute Y position (in FB pixels) */
int32_t rel_z; /* relative Z motion (wheel) */
};
#define XENKBD_IN_EVENT_SIZE 40
union xenkbd_in_event
{
uint8_t type;
struct xenkbd_motion motion;
struct xenkbd_key key;
struct xenkbd_position pos;
char pad[XENKBD_IN_EVENT_SIZE];
};
/* Out events (frontend -> backend) */
/*
* Out events may be sent only when requested by backend, and receipt
* of an unknown out event is an error.
* No out events currently defined.
*/
#define XENKBD_OUT_EVENT_SIZE 40
union xenkbd_out_event
{
uint8_t type;
char pad[XENKBD_OUT_EVENT_SIZE];
};
/* shared page */
#define XENKBD_IN_RING_SIZE 2048
#define XENKBD_IN_RING_LEN (XENKBD_IN_RING_SIZE / XENKBD_IN_EVENT_SIZE)
#define XENKBD_IN_RING_OFFS 1024
#define XENKBD_IN_RING(page) \
((union xenkbd_in_event *)((char *)(page) + XENKBD_IN_RING_OFFS))
#define XENKBD_IN_RING_REF(page, idx) \
(XENKBD_IN_RING((page))[(idx) % XENKBD_IN_RING_LEN])
#define XENKBD_OUT_RING_SIZE 1024
#define XENKBD_OUT_RING_LEN (XENKBD_OUT_RING_SIZE / XENKBD_OUT_EVENT_SIZE)
#define XENKBD_OUT_RING_OFFS (XENKBD_IN_RING_OFFS + XENKBD_IN_RING_SIZE)
#define XENKBD_OUT_RING(page) \
((union xenkbd_out_event *)((char *)(page) + XENKBD_OUT_RING_OFFS))
#define XENKBD_OUT_RING_REF(page, idx) \
(XENKBD_OUT_RING((page))[(idx) % XENKBD_OUT_RING_LEN])
struct xenkbd_page
{
uint32_t in_cons, in_prod;
uint32_t out_cons, out_prod;
};
#endif
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/**
* @file
* @section AUTHORS
*
* Copyright (C) 2010 Rafal Wojtczuk <rafal@invisiblethingslab.com>
*
* Authors:
* Rafal Wojtczuk <rafal@invisiblethingslab.com>
* Daniel De Graaf <dgdegra@tycho.nsa.gov>
*
* @section LICENSE
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* @section DESCRIPTION
*
* Originally borrowed from the Qubes OS Project, http://www.qubes-os.org,
* this code has been substantially rewritten to use the gntdev and gntalloc
* devices instead of raw MFNs and map_foreign_range.
*
* This is a library for inter-domain communication. A standard Xen ring
* buffer is used, with a datagram-based interface built on top. The grant
* reference and event channels are shared in XenStore under a user-specified
* path.
*
* The ring.h macros define an asymmetric interface to a shared data structure
* that assumes all rings reside in a single contiguous memory space. This is
* not suitable for vchan because the interface to the ring is symmetric except
* for the setup. Unlike the producer-consumer rings defined in ring.h, the
* size of the rings used in vchan are determined at execution time instead of
* compile time, so the macros in ring.h cannot be used to access the rings.
*/
#include <stdint.h>
#include <sys/types.h>
struct ring_shared {
uint32_t cons, prod;
};
#define VCHAN_NOTIFY_WRITE 0x1
#define VCHAN_NOTIFY_READ 0x2
/**
* vchan_interface: primary shared data structure
*/
struct vchan_interface {
/**
* Standard consumer/producer interface, one pair per buffer
* left is client write, server read
* right is client read, server write
*/
struct ring_shared left, right;
/**
* size of the rings, which determines their location
* 10 - at offset 1024 in ring's page
* 11 - at offset 2048 in ring's page
* 12+ - uses 2^(N-12) grants to describe the multi-page ring
* These should remain constant once the page is shared.
* Only one of the two orders can be 10 (or 11).
*/
uint16_t left_order, right_order;
/**
* Shutdown detection:
* 0: client (or server) has exited
* 1: client (or server) is connected
* 2: client has not yet connected
*/
uint8_t cli_live, srv_live;
/**
* Notification bits:
* VCHAN_NOTIFY_WRITE: send notify when data is written
* VCHAN_NOTIFY_READ: send notify when data is read (consumed)
* cli_notify is used for the client to inform the server of its action
*/
uint8_t cli_notify, srv_notify;
/**
* Grant list: ordering is left, right. Must not extend into actual ring
* or grow beyond the end of the initial shared page.
* These should remain constant once the page is shared, to allow
* for possible remapping by a client that restarts.
*/
uint32_t grants[0];
};

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/******************************************************************************
* netif.h
*
* Unified network-device I/O interface for Xen guest OSes.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2003-2004, Keir Fraser
*/
#ifndef __XEN_PUBLIC_IO_NETIF_H__
#define __XEN_PUBLIC_IO_NETIF_H__
#include "ring.h"
#include "../grant_table.h"
/*
* Older implementation of Xen network frontend / backend has an
* implicit dependency on the MAX_SKB_FRAGS as the maximum number of
* ring slots a skb can use. Netfront / netback may not work as
* expected when frontend and backend have different MAX_SKB_FRAGS.
*
* A better approach is to add mechanism for netfront / netback to
* negotiate this value. However we cannot fix all possible
* frontends, so we need to define a value which states the minimum
* slots backend must support.
*
* The minimum value derives from older Linux kernel's MAX_SKB_FRAGS
* (18), which is proved to work with most frontends. Any new backend
* which doesn't negotiate with frontend should expect frontend to
* send a valid packet using slots up to this value.
*/
#define XEN_NETIF_NR_SLOTS_MIN 18
/*
* Notifications after enqueuing any type of message should be conditional on
* the appropriate req_event or rsp_event field in the shared ring.
* If the client sends notification for rx requests then it should specify
* feature 'feature-rx-notify' via xenbus. Otherwise the backend will assume
* that it cannot safely queue packets (as it may not be kicked to send them).
*/
/*
* "feature-split-event-channels" is introduced to separate guest TX
* and RX notification. Backend either doesn't support this feature or
* advertises it via xenstore as 0 (disabled) or 1 (enabled).
*
* To make use of this feature, frontend should allocate two event
* channels for TX and RX, advertise them to backend as
* "event-channel-tx" and "event-channel-rx" respectively. If frontend
* doesn't want to use this feature, it just writes "event-channel"
* node as before.
*/
/*
* This is the 'wire' format for packets:
* Request 1: netif_tx_request -- NETTXF_* (any flags)
* [Request 2: netif_tx_extra] (only if request 1 has NETTXF_extra_info)
* [Request 3: netif_tx_extra] (only if request 2 has XEN_NETIF_EXTRA_MORE)
* Request 4: netif_tx_request -- NETTXF_more_data
* Request 5: netif_tx_request -- NETTXF_more_data
* ...
* Request N: netif_tx_request -- 0
*/
/* Protocol checksum field is blank in the packet (hardware offload)? */
#define _NETTXF_csum_blank (0)
#define NETTXF_csum_blank (1U<<_NETTXF_csum_blank)
/* Packet data has been validated against protocol checksum. */
#define _NETTXF_data_validated (1)
#define NETTXF_data_validated (1U<<_NETTXF_data_validated)
/* Packet continues in the next request descriptor. */
#define _NETTXF_more_data (2)
#define NETTXF_more_data (1U<<_NETTXF_more_data)
/* Packet to be followed by extra descriptor(s). */
#define _NETTXF_extra_info (3)
#define NETTXF_extra_info (1U<<_NETTXF_extra_info)
#define XEN_NETIF_MAX_TX_SIZE 0xFFFF
struct netif_tx_request {
grant_ref_t gref; /* Reference to buffer page */
uint16_t offset; /* Offset within buffer page */
uint16_t flags; /* NETTXF_* */
uint16_t id; /* Echoed in response message. */
uint16_t size; /* Packet size in bytes. */
};
typedef struct netif_tx_request netif_tx_request_t;
/* Types of netif_extra_info descriptors. */
#define XEN_NETIF_EXTRA_TYPE_NONE (0) /* Never used - invalid */
#define XEN_NETIF_EXTRA_TYPE_GSO (1) /* u.gso */
#define XEN_NETIF_EXTRA_TYPE_MCAST_ADD (2) /* u.mcast */
#define XEN_NETIF_EXTRA_TYPE_MCAST_DEL (3) /* u.mcast */
#define XEN_NETIF_EXTRA_TYPE_MAX (4)
/* netif_extra_info flags. */
#define _XEN_NETIF_EXTRA_FLAG_MORE (0)
#define XEN_NETIF_EXTRA_FLAG_MORE (1U<<_XEN_NETIF_EXTRA_FLAG_MORE)
/* GSO types - only TCPv4 currently supported. */
#define XEN_NETIF_GSO_TYPE_TCPV4 (1)
/*
* This structure needs to fit within both netif_tx_request and
* netif_rx_response for compatibility.
*/
struct netif_extra_info {
uint8_t type; /* XEN_NETIF_EXTRA_TYPE_* */
uint8_t flags; /* XEN_NETIF_EXTRA_FLAG_* */
union {
/*
* XEN_NETIF_EXTRA_TYPE_GSO:
*/
struct {
/*
* Maximum payload size of each segment. For example, for TCP this
* is just the path MSS.
*/
uint16_t size;
/*
* GSO type. This determines the protocol of the packet and any
* extra features required to segment the packet properly.
*/
uint8_t type; /* XEN_NETIF_GSO_TYPE_* */
/* Future expansion. */
uint8_t pad;
/*
* GSO features. This specifies any extra GSO features required
* to process this packet, such as ECN support for TCPv4.
*/
uint16_t features; /* XEN_NETIF_GSO_FEAT_* */
} gso;
/*
* XEN_NETIF_EXTRA_TYPE_MCAST_{ADD,DEL}:
* Backend advertises availability via 'feature-multicast-control'
* xenbus node containing value '1'.
* Frontend requests this feature by advertising
* 'request-multicast-control' xenbus node containing value '1'.
* If multicast control is requested then multicast flooding is
* disabled and the frontend must explicitly register its interest
* in multicast groups using dummy transmit requests containing
* MCAST_{ADD,DEL} extra-info fragments.
*/
struct {
uint8_t addr[6]; /* Address to add/remove. */
} mcast;
uint16_t pad[3];
} u;
};
typedef struct netif_extra_info netif_extra_info_t;
struct netif_tx_response {
uint16_t id;
int16_t status; /* NETIF_RSP_* */
};
typedef struct netif_tx_response netif_tx_response_t;
struct netif_rx_request {
uint16_t id; /* Echoed in response message. */
grant_ref_t gref; /* Reference to incoming granted frame */
};
typedef struct netif_rx_request netif_rx_request_t;
/* Packet data has been validated against protocol checksum. */
#define _NETRXF_data_validated (0)
#define NETRXF_data_validated (1U<<_NETRXF_data_validated)
/* Protocol checksum field is blank in the packet (hardware offload)? */
#define _NETRXF_csum_blank (1)
#define NETRXF_csum_blank (1U<<_NETRXF_csum_blank)
/* Packet continues in the next request descriptor. */
#define _NETRXF_more_data (2)
#define NETRXF_more_data (1U<<_NETRXF_more_data)
/* Packet to be followed by extra descriptor(s). */
#define _NETRXF_extra_info (3)
#define NETRXF_extra_info (1U<<_NETRXF_extra_info)
struct netif_rx_response {
uint16_t id;
uint16_t offset; /* Offset in page of start of received packet */
uint16_t flags; /* NETRXF_* */
int16_t status; /* -ve: BLKIF_RSP_* ; +ve: Rx'ed pkt size. */
};
typedef struct netif_rx_response netif_rx_response_t;
/*
* Generate netif ring structures and types.
*/
DEFINE_RING_TYPES(netif_tx, struct netif_tx_request, struct netif_tx_response);
DEFINE_RING_TYPES(netif_rx, struct netif_rx_request, struct netif_rx_response);
#define NETIF_RSP_DROPPED -2
#define NETIF_RSP_ERROR -1
#define NETIF_RSP_OKAY 0
/* No response: used for auxiliary requests (e.g., netif_tx_extra). */
#define NETIF_RSP_NULL 1
#endif
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/*
* PCI Backend/Frontend Common Data Structures & Macros
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Author: Ryan Wilson <hap9@epoch.ncsc.mil>
*/
#ifndef __XEN_PCI_COMMON_H__
#define __XEN_PCI_COMMON_H__
/* Be sure to bump this number if you change this file */
#define XEN_PCI_MAGIC "7"
/* xen_pci_sharedinfo flags */
#define _XEN_PCIF_active (0)
#define XEN_PCIF_active (1<<_XEN_PCIF_active)
#define _XEN_PCIB_AERHANDLER (1)
#define XEN_PCIB_AERHANDLER (1<<_XEN_PCIB_AERHANDLER)
#define _XEN_PCIB_active (2)
#define XEN_PCIB_active (1<<_XEN_PCIB_active)
/* xen_pci_op commands */
#define XEN_PCI_OP_conf_read (0)
#define XEN_PCI_OP_conf_write (1)
#define XEN_PCI_OP_enable_msi (2)
#define XEN_PCI_OP_disable_msi (3)
#define XEN_PCI_OP_enable_msix (4)
#define XEN_PCI_OP_disable_msix (5)
#define XEN_PCI_OP_aer_detected (6)
#define XEN_PCI_OP_aer_resume (7)
#define XEN_PCI_OP_aer_mmio (8)
#define XEN_PCI_OP_aer_slotreset (9)
/* xen_pci_op error numbers */
#define XEN_PCI_ERR_success (0)
#define XEN_PCI_ERR_dev_not_found (-1)
#define XEN_PCI_ERR_invalid_offset (-2)
#define XEN_PCI_ERR_access_denied (-3)
#define XEN_PCI_ERR_not_implemented (-4)
/* XEN_PCI_ERR_op_failed - backend failed to complete the operation */
#define XEN_PCI_ERR_op_failed (-5)
/*
* it should be PAGE_SIZE-sizeof(struct xen_pci_op))/sizeof(struct msix_entry))
* Should not exceed 128
*/
#define SH_INFO_MAX_VEC 128
struct xen_msix_entry {
uint16_t vector;
uint16_t entry;
};
struct xen_pci_op {
/* IN: what action to perform: XEN_PCI_OP_* */
uint32_t cmd;
/* OUT: will contain an error number (if any) from errno.h */
int32_t err;
/* IN: which device to touch */
uint32_t domain; /* PCI Domain/Segment */
uint32_t bus;
uint32_t devfn;
/* IN: which configuration registers to touch */
int32_t offset;
int32_t size;
/* IN/OUT: Contains the result after a READ or the value to WRITE */
uint32_t value;
/* IN: Contains extra infor for this operation */
uint32_t info;
/*IN: param for msi-x */
struct xen_msix_entry msix_entries[SH_INFO_MAX_VEC];
};
/*used for pcie aer handling*/
struct xen_pcie_aer_op
{
/* IN: what action to perform: XEN_PCI_OP_* */
uint32_t cmd;
/*IN/OUT: return aer_op result or carry error_detected state as input*/
int32_t err;
/* IN: which device to touch */
uint32_t domain; /* PCI Domain/Segment*/
uint32_t bus;
uint32_t devfn;
};
struct xen_pci_sharedinfo {
/* flags - XEN_PCIF_* */
uint32_t flags;
struct xen_pci_op op;
struct xen_pcie_aer_op aer_op;
};
#endif /* __XEN_PCI_COMMON_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* protocols.h
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef __XEN_PROTOCOLS_H__
#define __XEN_PROTOCOLS_H__
#define XEN_IO_PROTO_ABI_X86_32 "x86_32-abi"
#define XEN_IO_PROTO_ABI_X86_64 "x86_64-abi"
#define XEN_IO_PROTO_ABI_ARM "arm-abi"
#if defined(__i386__)
# define XEN_IO_PROTO_ABI_NATIVE XEN_IO_PROTO_ABI_X86_32
#elif defined(__x86_64__)
# define XEN_IO_PROTO_ABI_NATIVE XEN_IO_PROTO_ABI_X86_64
#elif defined(__arm__) || defined(__aarch64__)
# define XEN_IO_PROTO_ABI_NATIVE XEN_IO_PROTO_ABI_ARM
#else
# error arch fixup needed here
#endif
#endif

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/******************************************************************************
* ring.h
*
* Shared producer-consumer ring macros.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Tim Deegan and Andrew Warfield November 2004.
*/
#ifndef __XEN_PUBLIC_IO_RING_H__
#define __XEN_PUBLIC_IO_RING_H__
#include "../xen-compat.h"
#if __XEN_INTERFACE_VERSION__ < 0x00030208
#define xen_mb() mb()
#define xen_rmb() rmb()
#define xen_wmb() wmb()
#endif
typedef unsigned int RING_IDX;
/* Round a 32-bit unsigned constant down to the nearest power of two. */
#define __RD2(_x) (((_x) & 0x00000002) ? 0x2 : ((_x) & 0x1))
#define __RD4(_x) (((_x) & 0x0000000c) ? __RD2((_x)>>2)<<2 : __RD2(_x))
#define __RD8(_x) (((_x) & 0x000000f0) ? __RD4((_x)>>4)<<4 : __RD4(_x))
#define __RD16(_x) (((_x) & 0x0000ff00) ? __RD8((_x)>>8)<<8 : __RD8(_x))
#define __RD32(_x) (((_x) & 0xffff0000) ? __RD16((_x)>>16)<<16 : __RD16(_x))
/*
* Calculate size of a shared ring, given the total available space for the
* ring and indexes (_sz), and the name tag of the request/response structure.
* A ring contains as many entries as will fit, rounded down to the nearest
* power of two (so we can mask with (size-1) to loop around).
*/
#define __CONST_RING_SIZE(_s, _sz) \
(__RD32(((_sz) - offsetof(struct _s##_sring, ring)) / \
sizeof(((struct _s##_sring *)0)->ring[0])))
/*
* The same for passing in an actual pointer instead of a name tag.
*/
#define __RING_SIZE(_s, _sz) \
(__RD32(((_sz) - (long)(_s)->ring + (long)(_s)) / sizeof((_s)->ring[0])))
/*
* Macros to make the correct C datatypes for a new kind of ring.
*
* To make a new ring datatype, you need to have two message structures,
* let's say request_t, and response_t already defined.
*
* In a header where you want the ring datatype declared, you then do:
*
* DEFINE_RING_TYPES(mytag, request_t, response_t);
*
* These expand out to give you a set of types, as you can see below.
* The most important of these are:
*
* mytag_sring_t - The shared ring.
* mytag_front_ring_t - The 'front' half of the ring.
* mytag_back_ring_t - The 'back' half of the ring.
*
* To initialize a ring in your code you need to know the location and size
* of the shared memory area (PAGE_SIZE, for instance). To initialise
* the front half:
*
* mytag_front_ring_t front_ring;
* SHARED_RING_INIT((mytag_sring_t *)shared_page);
* FRONT_RING_INIT(&front_ring, (mytag_sring_t *)shared_page, PAGE_SIZE);
*
* Initializing the back follows similarly (note that only the front
* initializes the shared ring):
*
* mytag_back_ring_t back_ring;
* BACK_RING_INIT(&back_ring, (mytag_sring_t *)shared_page, PAGE_SIZE);
*/
#define DEFINE_RING_TYPES(__name, __req_t, __rsp_t) \
\
/* Shared ring entry */ \
union __name##_sring_entry { \
__req_t req; \
__rsp_t rsp; \
}; \
\
/* Shared ring page */ \
struct __name##_sring { \
RING_IDX req_prod, req_event; \
RING_IDX rsp_prod, rsp_event; \
union { \
struct { \
uint8_t smartpoll_active; \
} netif; \
struct { \
uint8_t msg; \
} tapif_user; \
uint8_t pvt_pad[4]; \
} private; \
uint8_t __pad[44]; \
union __name##_sring_entry ring[1]; /* variable-length */ \
}; \
\
/* "Front" end's private variables */ \
struct __name##_front_ring { \
RING_IDX req_prod_pvt; \
RING_IDX rsp_cons; \
unsigned int nr_ents; \
struct __name##_sring *sring; \
}; \
\
/* "Back" end's private variables */ \
struct __name##_back_ring { \
RING_IDX rsp_prod_pvt; \
RING_IDX req_cons; \
unsigned int nr_ents; \
struct __name##_sring *sring; \
}; \
\
/* Syntactic sugar */ \
typedef struct __name##_sring __name##_sring_t; \
typedef struct __name##_front_ring __name##_front_ring_t; \
typedef struct __name##_back_ring __name##_back_ring_t
/*
* Macros for manipulating rings.
*
* FRONT_RING_whatever works on the "front end" of a ring: here
* requests are pushed on to the ring and responses taken off it.
*
* BACK_RING_whatever works on the "back end" of a ring: here
* requests are taken off the ring and responses put on.
*
* N.B. these macros do NO INTERLOCKS OR FLOW CONTROL.
* This is OK in 1-for-1 request-response situations where the
* requestor (front end) never has more than RING_SIZE()-1
* outstanding requests.
*/
/* Initialising empty rings */
#define SHARED_RING_INIT(_s) do { \
(_s)->req_prod = (_s)->rsp_prod = 0; \
(_s)->req_event = (_s)->rsp_event = 1; \
(void)memset((_s)->private.pvt_pad, 0, sizeof((_s)->private.pvt_pad)); \
(void)memset((_s)->__pad, 0, sizeof((_s)->__pad)); \
} while(0)
#define FRONT_RING_INIT(_r, _s, __size) do { \
(_r)->req_prod_pvt = 0; \
(_r)->rsp_cons = 0; \
(_r)->nr_ents = __RING_SIZE(_s, __size); \
(_r)->sring = (_s); \
} while (0)
#define BACK_RING_INIT(_r, _s, __size) do { \
(_r)->rsp_prod_pvt = 0; \
(_r)->req_cons = 0; \
(_r)->nr_ents = __RING_SIZE(_s, __size); \
(_r)->sring = (_s); \
} while (0)
/* How big is this ring? */
#define RING_SIZE(_r) \
((_r)->nr_ents)
/* Number of free requests (for use on front side only). */
#define RING_FREE_REQUESTS(_r) \
(RING_SIZE(_r) - ((_r)->req_prod_pvt - (_r)->rsp_cons))
/* Test if there is an empty slot available on the front ring.
* (This is only meaningful from the front. )
*/
#define RING_FULL(_r) \
(RING_FREE_REQUESTS(_r) == 0)
/* Test if there are outstanding messages to be processed on a ring. */
#define RING_HAS_UNCONSUMED_RESPONSES(_r) \
((_r)->sring->rsp_prod - (_r)->rsp_cons)
#ifdef __GNUC__
#define RING_HAS_UNCONSUMED_REQUESTS(_r) ({ \
unsigned int req = (_r)->sring->req_prod - (_r)->req_cons; \
unsigned int rsp = RING_SIZE(_r) - \
((_r)->req_cons - (_r)->rsp_prod_pvt); \
req < rsp ? req : rsp; \
})
#else
/* Same as above, but without the nice GCC ({ ... }) syntax. */
#define RING_HAS_UNCONSUMED_REQUESTS(_r) \
((((_r)->sring->req_prod - (_r)->req_cons) < \
(RING_SIZE(_r) - ((_r)->req_cons - (_r)->rsp_prod_pvt))) ? \
((_r)->sring->req_prod - (_r)->req_cons) : \
(RING_SIZE(_r) - ((_r)->req_cons - (_r)->rsp_prod_pvt)))
#endif
/* Direct access to individual ring elements, by index. */
#define RING_GET_REQUEST(_r, _idx) \
(&((_r)->sring->ring[((_idx) & (RING_SIZE(_r) - 1))].req))
#define RING_GET_RESPONSE(_r, _idx) \
(&((_r)->sring->ring[((_idx) & (RING_SIZE(_r) - 1))].rsp))
/* Loop termination condition: Would the specified index overflow the ring? */
#define RING_REQUEST_CONS_OVERFLOW(_r, _cons) \
(((_cons) - (_r)->rsp_prod_pvt) >= RING_SIZE(_r))
/* Ill-behaved frontend determination: Can there be this many requests? */
#define RING_REQUEST_PROD_OVERFLOW(_r, _prod) \
(((_prod) - (_r)->rsp_prod_pvt) > RING_SIZE(_r))
#define RING_PUSH_REQUESTS(_r) do { \
xen_wmb(); /* back sees requests /before/ updated producer index */ \
(_r)->sring->req_prod = (_r)->req_prod_pvt; \
} while (0)
#define RING_PUSH_RESPONSES(_r) do { \
xen_wmb(); /* front sees resps /before/ updated producer index */ \
(_r)->sring->rsp_prod = (_r)->rsp_prod_pvt; \
} while (0)
/*
* Notification hold-off (req_event and rsp_event):
*
* When queueing requests or responses on a shared ring, it may not always be
* necessary to notify the remote end. For example, if requests are in flight
* in a backend, the front may be able to queue further requests without
* notifying the back (if the back checks for new requests when it queues
* responses).
*
* When enqueuing requests or responses:
*
* Use RING_PUSH_{REQUESTS,RESPONSES}_AND_CHECK_NOTIFY(). The second argument
* is a boolean return value. True indicates that the receiver requires an
* asynchronous notification.
*
* After dequeuing requests or responses (before sleeping the connection):
*
* Use RING_FINAL_CHECK_FOR_REQUESTS() or RING_FINAL_CHECK_FOR_RESPONSES().
* The second argument is a boolean return value. True indicates that there
* are pending messages on the ring (i.e., the connection should not be put
* to sleep).
*
* These macros will set the req_event/rsp_event field to trigger a
* notification on the very next message that is enqueued. If you want to
* create batches of work (i.e., only receive a notification after several
* messages have been enqueued) then you will need to create a customised
* version of the FINAL_CHECK macro in your own code, which sets the event
* field appropriately.
*/
#define RING_PUSH_REQUESTS_AND_CHECK_NOTIFY(_r, _notify) do { \
RING_IDX __old = (_r)->sring->req_prod; \
RING_IDX __new = (_r)->req_prod_pvt; \
xen_wmb(); /* back sees requests /before/ updated producer index */ \
(_r)->sring->req_prod = __new; \
xen_mb(); /* back sees new requests /before/ we check req_event */ \
(_notify) = ((RING_IDX)(__new - (_r)->sring->req_event) < \
(RING_IDX)(__new - __old)); \
} while (0)
#define RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(_r, _notify) do { \
RING_IDX __old = (_r)->sring->rsp_prod; \
RING_IDX __new = (_r)->rsp_prod_pvt; \
xen_wmb(); /* front sees resps /before/ updated producer index */ \
(_r)->sring->rsp_prod = __new; \
xen_mb(); /* front sees new resps /before/ we check rsp_event */ \
(_notify) = ((RING_IDX)(__new - (_r)->sring->rsp_event) < \
(RING_IDX)(__new - __old)); \
} while (0)
#define RING_FINAL_CHECK_FOR_REQUESTS(_r, _work_to_do) do { \
(_work_to_do) = RING_HAS_UNCONSUMED_REQUESTS(_r); \
if (_work_to_do) break; \
(_r)->sring->req_event = (_r)->req_cons + 1; \
xen_mb(); \
(_work_to_do) = RING_HAS_UNCONSUMED_REQUESTS(_r); \
} while (0)
#define RING_FINAL_CHECK_FOR_RESPONSES(_r, _work_to_do) do { \
(_work_to_do) = RING_HAS_UNCONSUMED_RESPONSES(_r); \
if (_work_to_do) break; \
(_r)->sring->rsp_event = (_r)->rsp_cons + 1; \
xen_mb(); \
(_work_to_do) = RING_HAS_UNCONSUMED_RESPONSES(_r); \
} while (0)
#endif /* __XEN_PUBLIC_IO_RING_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* tpmif.h
*
* TPM I/O interface for Xen guest OSes.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2005, IBM Corporation
*
* Author: Stefan Berger, stefanb@us.ibm.com
* Grant table support: Mahadevan Gomathisankaran
*
* This code has been derived from tools/libxc/xen/io/netif.h
*
* Copyright (c) 2003-2004, Keir Fraser
*/
#ifndef __XEN_PUBLIC_IO_TPMIF_H__
#define __XEN_PUBLIC_IO_TPMIF_H__
#include "../grant_table.h"
struct tpmif_tx_request {
unsigned long addr; /* Machine address of packet. */
grant_ref_t ref; /* grant table access reference */
uint16_t unused;
uint16_t size; /* Packet size in bytes. */
};
typedef struct tpmif_tx_request tpmif_tx_request_t;
/*
* The TPMIF_TX_RING_SIZE defines the number of pages the
* front-end and backend can exchange (= size of array).
*/
typedef uint32_t TPMIF_RING_IDX;
#define TPMIF_TX_RING_SIZE 1
/* This structure must fit in a memory page. */
struct tpmif_ring {
struct tpmif_tx_request req;
};
typedef struct tpmif_ring tpmif_ring_t;
struct tpmif_tx_interface {
struct tpmif_ring ring[TPMIF_TX_RING_SIZE];
};
typedef struct tpmif_tx_interface tpmif_tx_interface_t;
/******************************************************************************
* TPM I/O interface for Xen guest OSes, v2
*
* Author: Daniel De Graaf <dgdegra@tycho.nsa.gov>
*
* This protocol emulates the request/response behavior of a TPM using a Xen
* shared memory interface. All interaction with the TPM is at the direction
* of the frontend, since a TPM (hardware or virtual) is a passive device -
* the backend only processes commands as requested by the frontend.
*
* The frontend sends a request to the TPM by populating the shared page with
* the request packet, changing the state to TPMIF_STATE_SUBMIT, and sending
* and event channel notification. When the backend is finished, it will set
* the state to TPMIF_STATE_FINISH and send an event channel notification.
*
* In order to allow long-running commands to be canceled, the frontend can
* at any time change the state to TPMIF_STATE_CANCEL and send a notification.
* The TPM can either finish the command (changing state to TPMIF_STATE_FINISH)
* or can cancel the command and change the state to TPMIF_STATE_IDLE. The TPM
* can also change the state to TPMIF_STATE_IDLE instead of TPMIF_STATE_FINISH
* if another reason for cancellation is required - for example, a physical
* TPM may cancel a command if the interface is seized by another locality.
*
* The TPM command format is defined by the TCG, and is available at
* http://www.trustedcomputinggroup.org/resources/tpm_main_specification
*/
enum tpmif_state {
TPMIF_STATE_IDLE, /* no contents / vTPM idle / cancel complete */
TPMIF_STATE_SUBMIT, /* request ready / vTPM working */
TPMIF_STATE_FINISH, /* response ready / vTPM idle */
TPMIF_STATE_CANCEL, /* cancel requested / vTPM working */
};
/* Note: The backend should only change state to IDLE or FINISH, while the
* frontend should only change to SUBMIT or CANCEL. Status changes do not need
* to use atomic operations.
*/
/* The shared page for vTPM request/response packets looks like:
*
* Offset Contents
* =================================================
* 0 struct tpmif_shared_page
* 16 [optional] List of grant IDs
* 16+4*nr_extra_pages TPM packet data
*
* If the TPM packet data extends beyond the end of a single page, the grant IDs
* defined in extra_pages are used as if they were mapped immediately following
* the primary shared page. The grants are allocated by the frontend and mapped
* by the backend. Before sending a request spanning multiple pages, the
* frontend should verify that the TPM supports such large requests by querying
* the TPM_CAP_PROP_INPUT_BUFFER property from the TPM.
*/
struct tpmif_shared_page {
uint32_t length; /* request/response length in bytes */
uint8_t state; /* enum tpmif_state */
uint8_t locality; /* for the current request */
uint8_t pad; /* should be zero */
uint8_t nr_extra_pages; /* extra pages for long packets; may be zero */
uint32_t extra_pages[0]; /* grant IDs; length is actually nr_extra_pages */
};
typedef struct tpmif_shared_page tpmif_shared_page_t;
#endif
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/*
* usbif.h
*
* USB I/O interface for Xen guest OSes.
*
* Copyright (C) 2009, FUJITSU LABORATORIES LTD.
* Author: Noboru Iwamatsu <n_iwamatsu@jp.fujitsu.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef __XEN_PUBLIC_IO_USBIF_H__
#define __XEN_PUBLIC_IO_USBIF_H__
#include "ring.h"
#include "../grant_table.h"
enum usb_spec_version {
USB_VER_UNKNOWN = 0,
USB_VER_USB11,
USB_VER_USB20,
USB_VER_USB30, /* not supported yet */
};
/*
* USB pipe in usbif_request
*
* bits 0-5 are specific bits for virtual USB driver.
* bits 7-31 are standard urb pipe.
*
* - port number(NEW): bits 0-4
* (USB_MAXCHILDREN is 31)
*
* - operation flag(NEW): bit 5
* (0 = submit urb,
* 1 = unlink urb)
*
* - direction: bit 7
* (0 = Host-to-Device [Out]
* 1 = Device-to-Host [In])
*
* - device address: bits 8-14
*
* - endpoint: bits 15-18
*
* - pipe type: bits 30-31
* (00 = isochronous, 01 = interrupt,
* 10 = control, 11 = bulk)
*/
#define usbif_pipeportnum(pipe) ((pipe) & 0x1f)
#define usbif_setportnum_pipe(pipe, portnum) \
((pipe)|(portnum))
#define usbif_pipeunlink(pipe) ((pipe) & 0x20)
#define usbif_pipesubmit(pipe) (!usbif_pipeunlink(pipe))
#define usbif_setunlink_pipe(pipe) ((pipe)|(0x20))
#define USBIF_MAX_SEGMENTS_PER_REQUEST (16)
/*
* RING for transferring urbs.
*/
struct usbif_request_segment {
grant_ref_t gref;
uint16_t offset;
uint16_t length;
};
struct usbif_urb_request {
uint16_t id; /* request id */
uint16_t nr_buffer_segs; /* number of urb->transfer_buffer segments */
/* basic urb parameter */
uint32_t pipe;
uint16_t transfer_flags;
uint16_t buffer_length;
union {
uint8_t ctrl[8]; /* setup_packet (Ctrl) */
struct {
uint16_t interval; /* maximum (1024*8) in usb core */
uint16_t start_frame; /* start frame */
uint16_t number_of_packets; /* number of ISO packet */
uint16_t nr_frame_desc_segs; /* number of iso_frame_desc segments */
} isoc;
struct {
uint16_t interval; /* maximum (1024*8) in usb core */
uint16_t pad[3];
} intr;
struct {
uint16_t unlink_id; /* unlink request id */
uint16_t pad[3];
} unlink;
} u;
/* urb data segments */
struct usbif_request_segment seg[USBIF_MAX_SEGMENTS_PER_REQUEST];
};
typedef struct usbif_urb_request usbif_urb_request_t;
struct usbif_urb_response {
uint16_t id; /* request id */
uint16_t start_frame; /* start frame (ISO) */
int32_t status; /* status (non-ISO) */
int32_t actual_length; /* actual transfer length */
int32_t error_count; /* number of ISO errors */
};
typedef struct usbif_urb_response usbif_urb_response_t;
DEFINE_RING_TYPES(usbif_urb, struct usbif_urb_request, struct usbif_urb_response);
#define USB_URB_RING_SIZE __CONST_RING_SIZE(usbif_urb, PAGE_SIZE)
/*
* RING for notifying connect/disconnect events to frontend
*/
struct usbif_conn_request {
uint16_t id;
};
typedef struct usbif_conn_request usbif_conn_request_t;
struct usbif_conn_response {
uint16_t id; /* request id */
uint8_t portnum; /* port number */
uint8_t speed; /* usb_device_speed */
};
typedef struct usbif_conn_response usbif_conn_response_t;
DEFINE_RING_TYPES(usbif_conn, struct usbif_conn_request, struct usbif_conn_response);
#define USB_CONN_RING_SIZE __CONST_RING_SIZE(usbif_conn, PAGE_SIZE)
#endif /* __XEN_PUBLIC_IO_USBIF_H__ */

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/******************************************************************************
* vscsiif.h
*
* Based on the blkif.h code.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright(c) FUJITSU Limited 2008.
*/
#ifndef __XEN__PUBLIC_IO_SCSI_H__
#define __XEN__PUBLIC_IO_SCSI_H__
#include "ring.h"
#include "../grant_table.h"
/* commands between backend and frontend */
#define VSCSIIF_ACT_SCSI_CDB 1 /* SCSI CDB command */
#define VSCSIIF_ACT_SCSI_ABORT 2 /* SCSI Device(Lun) Abort*/
#define VSCSIIF_ACT_SCSI_RESET 3 /* SCSI Device(Lun) Reset*/
#define VSCSIIF_ACT_SCSI_SG_PRESET 4 /* Preset SG elements */
/*
* Maximum scatter/gather segments per request.
*
* Considering balance between allocating at least 16 "vscsiif_request"
* structures on one page (4096 bytes) and the number of scatter/gather
* elements needed, we decided to use 26 as a magic number.
*/
#define VSCSIIF_SG_TABLESIZE 26
/*
* based on Linux kernel 2.6.18
*/
#define VSCSIIF_MAX_COMMAND_SIZE 16
#define VSCSIIF_SENSE_BUFFERSIZE 96
struct scsiif_request_segment {
grant_ref_t gref;
uint16_t offset;
uint16_t length;
};
typedef struct scsiif_request_segment vscsiif_segment_t;
struct vscsiif_request {
uint16_t rqid; /* private guest value, echoed in resp */
uint8_t act; /* command between backend and frontend */
uint8_t cmd_len;
uint8_t cmnd[VSCSIIF_MAX_COMMAND_SIZE];
uint16_t timeout_per_command; /* The command is issued by twice
the value in Backend. */
uint16_t channel, id, lun;
uint16_t padding;
uint8_t sc_data_direction; /* for DMA_TO_DEVICE(1)
DMA_FROM_DEVICE(2)
DMA_NONE(3) requests */
uint8_t nr_segments; /* Number of pieces of scatter-gather */
vscsiif_segment_t seg[VSCSIIF_SG_TABLESIZE];
uint32_t reserved[3];
};
typedef struct vscsiif_request vscsiif_request_t;
#define VSCSIIF_SG_LIST_SIZE ((sizeof(vscsiif_request_t) - 4) \
/ sizeof(vscsiif_segment_t))
struct vscsiif_sg_list {
/* First two fields must match struct vscsiif_request! */
uint16_t rqid; /* private guest value, must match main req */
uint8_t act; /* VSCSIIF_ACT_SCSI_SG_PRESET */
uint8_t nr_segments; /* Number of pieces of scatter-gather */
vscsiif_segment_t seg[VSCSIIF_SG_LIST_SIZE];
};
typedef struct vscsiif_sg_list vscsiif_sg_list_t;
struct vscsiif_response {
uint16_t rqid;
uint8_t act; /* valid only when backend supports SG_PRESET */
uint8_t sense_len;
uint8_t sense_buffer[VSCSIIF_SENSE_BUFFERSIZE];
int32_t rslt;
uint32_t residual_len; /* request bufflen -
return the value from physical device */
uint32_t reserved[36];
};
typedef struct vscsiif_response vscsiif_response_t;
DEFINE_RING_TYPES(vscsiif, struct vscsiif_request, struct vscsiif_response);
#endif /*__XEN__PUBLIC_IO_SCSI_H__*/
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/*****************************************************************************
* xenbus.h
*
* Xenbus protocol details.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (C) 2005 XenSource Ltd.
*/
#ifndef _XEN_PUBLIC_IO_XENBUS_H
#define _XEN_PUBLIC_IO_XENBUS_H
/*
* The state of either end of the Xenbus, i.e. the current communication
* status of initialisation across the bus. States here imply nothing about
* the state of the connection between the driver and the kernel's device
* layers.
*/
enum xenbus_state {
XenbusStateUnknown = 0,
XenbusStateInitialising = 1,
/*
* InitWait: Finished early initialisation but waiting for information
* from the peer or hotplug scripts.
*/
XenbusStateInitWait = 2,
/*
* Initialised: Waiting for a connection from the peer.
*/
XenbusStateInitialised = 3,
XenbusStateConnected = 4,
/*
* Closing: The device is being closed due to an error or an unplug event.
*/
XenbusStateClosing = 5,
XenbusStateClosed = 6,
/*
* Reconfiguring: The device is being reconfigured.
*/
XenbusStateReconfiguring = 7,
XenbusStateReconfigured = 8
};
typedef enum xenbus_state XenbusState;
#endif /* _XEN_PUBLIC_IO_XENBUS_H */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/*
* Details of the "wire" protocol between Xen Store Daemon and client
* library or guest kernel.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (C) 2005 Rusty Russell IBM Corporation
*/
#ifndef _XS_WIRE_H
#define _XS_WIRE_H
enum xsd_sockmsg_type
{
XS_DEBUG,
XS_DIRECTORY,
XS_READ,
XS_GET_PERMS,
XS_WATCH,
XS_UNWATCH,
XS_TRANSACTION_START,
XS_TRANSACTION_END,
XS_INTRODUCE,
XS_RELEASE,
XS_GET_DOMAIN_PATH,
XS_WRITE,
XS_MKDIR,
XS_RM,
XS_SET_PERMS,
XS_WATCH_EVENT,
XS_ERROR,
XS_IS_DOMAIN_INTRODUCED,
XS_RESUME,
XS_SET_TARGET,
XS_RESTRICT,
XS_RESET_WATCHES
};
#define XS_WRITE_NONE "NONE"
#define XS_WRITE_CREATE "CREATE"
#define XS_WRITE_CREATE_EXCL "CREATE|EXCL"
/* We hand errors as strings, for portability. */
struct xsd_errors
{
int errnum;
const char *errstring;
};
#ifdef EINVAL
#define XSD_ERROR(x) { x, #x }
/* LINTED: static unused */
static struct xsd_errors xsd_errors[]
#if defined(__GNUC__)
__attribute__((unused))
#endif
= {
XSD_ERROR(EINVAL),
XSD_ERROR(EACCES),
XSD_ERROR(EEXIST),
XSD_ERROR(EISDIR),
XSD_ERROR(ENOENT),
XSD_ERROR(ENOMEM),
XSD_ERROR(ENOSPC),
XSD_ERROR(EIO),
XSD_ERROR(ENOTEMPTY),
XSD_ERROR(ENOSYS),
XSD_ERROR(EROFS),
XSD_ERROR(EBUSY),
XSD_ERROR(EAGAIN),
XSD_ERROR(EISCONN),
XSD_ERROR(E2BIG)
};
#endif
struct xsd_sockmsg
{
uint32_t type; /* XS_??? */
uint32_t req_id;/* Request identifier, echoed in daemon's response. */
uint32_t tx_id; /* Transaction id (0 if not related to a transaction). */
uint32_t len; /* Length of data following this. */
/* Generally followed by nul-terminated string(s). */
};
enum xs_watch_type
{
XS_WATCH_PATH = 0,
XS_WATCH_TOKEN
};
/*
* `incontents 150 xenstore_struct XenStore wire protocol.
*
* Inter-domain shared memory communications. */
#define XENSTORE_RING_SIZE 1024
typedef uint32_t XENSTORE_RING_IDX;
#define MASK_XENSTORE_IDX(idx) ((idx) & (XENSTORE_RING_SIZE-1))
struct xenstore_domain_interface {
char req[XENSTORE_RING_SIZE]; /* Requests to xenstore daemon. */
char rsp[XENSTORE_RING_SIZE]; /* Replies and async watch events. */
XENSTORE_RING_IDX req_cons, req_prod;
XENSTORE_RING_IDX rsp_cons, rsp_prod;
};
/* Violating this is very bad. See docs/misc/xenstore.txt. */
#define XENSTORE_PAYLOAD_MAX 4096
/* Violating these just gets you an error back */
#define XENSTORE_ABS_PATH_MAX 3072
#define XENSTORE_REL_PATH_MAX 2048
#endif /* _XS_WIRE_H */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* kexec.h - Public portion
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Xen port written by:
* - Simon 'Horms' Horman <horms@verge.net.au>
* - Magnus Damm <magnus@valinux.co.jp>
*/
#ifndef _XEN_PUBLIC_KEXEC_H
#define _XEN_PUBLIC_KEXEC_H
/* This file describes the Kexec / Kdump hypercall interface for Xen.
*
* Kexec under vanilla Linux allows a user to reboot the physical machine
* into a new user-specified kernel. The Xen port extends this idea
* to allow rebooting of the machine from dom0. When kexec for dom0
* is used to reboot, both the hypervisor and the domains get replaced
* with some other kernel. It is possible to kexec between vanilla
* Linux and Xen and back again. Xen to Xen works well too.
*
* The hypercall interface for kexec can be divided into three main
* types of hypercall operations:
*
* 1) Range information:
* This is used by the dom0 kernel to ask the hypervisor about various
* address information. This information is needed to allow kexec-tools
* to fill in the ELF headers for /proc/vmcore properly.
*
* 2) Load and unload of images:
* There are no big surprises here, the kexec binary from kexec-tools
* runs in userspace in dom0. The tool loads/unloads data into the
* dom0 kernel such as new kernel, initramfs and hypervisor. When
* loaded the dom0 kernel performs a load hypercall operation, and
* before releasing all page references the dom0 kernel calls unload.
*
* 3) Kexec operation:
* This is used to start a previously loaded kernel.
*/
#include "xen.h"
#if defined(__i386__) || defined(__x86_64__)
#define KEXEC_XEN_NO_PAGES 17
#endif
/*
* Prototype for this hypercall is:
* int kexec_op(int cmd, void *args)
* @cmd == KEXEC_CMD_...
* KEXEC operation to perform
* @args == Operation-specific extra arguments (NULL if none).
*/
/*
* Kexec supports two types of operation:
* - kexec into a regular kernel, very similar to a standard reboot
* - KEXEC_TYPE_DEFAULT is used to specify this type
* - kexec into a special "crash kernel", aka kexec-on-panic
* - KEXEC_TYPE_CRASH is used to specify this type
* - parts of our system may be broken at kexec-on-panic time
* - the code should be kept as simple and self-contained as possible
*/
#define KEXEC_TYPE_DEFAULT 0
#define KEXEC_TYPE_CRASH 1
/* The kexec implementation for Xen allows the user to load two
* types of kernels, KEXEC_TYPE_DEFAULT and KEXEC_TYPE_CRASH.
* All data needed for a kexec reboot is kept in one xen_kexec_image_t
* per "instance". The data mainly consists of machine address lists to pages
* together with destination addresses. The data in xen_kexec_image_t
* is passed to the "code page" which is one page of code that performs
* the final relocations before jumping to the new kernel.
*/
typedef struct xen_kexec_image {
#if defined(__i386__) || defined(__x86_64__)
unsigned long page_list[KEXEC_XEN_NO_PAGES];
#endif
unsigned long indirection_page;
unsigned long start_address;
} xen_kexec_image_t;
/*
* Perform kexec having previously loaded a kexec or kdump kernel
* as appropriate.
* type == KEXEC_TYPE_DEFAULT or KEXEC_TYPE_CRASH [in]
*/
#define KEXEC_CMD_kexec 0
typedef struct xen_kexec_exec {
int type;
} xen_kexec_exec_t;
/*
* Load/Unload kernel image for kexec or kdump.
* type == KEXEC_TYPE_DEFAULT or KEXEC_TYPE_CRASH [in]
* image == relocation information for kexec (ignored for unload) [in]
*/
#define KEXEC_CMD_kexec_load 1
#define KEXEC_CMD_kexec_unload 2
typedef struct xen_kexec_load {
int type;
xen_kexec_image_t image;
} xen_kexec_load_t;
#define KEXEC_RANGE_MA_CRASH 0 /* machine address and size of crash area */
#define KEXEC_RANGE_MA_XEN 1 /* machine address and size of Xen itself */
#define KEXEC_RANGE_MA_CPU 2 /* machine address and size of a CPU note */
#define KEXEC_RANGE_MA_XENHEAP 3 /* machine address and size of xenheap
* Note that although this is adjacent
* to Xen it exists in a separate EFI
* region on ia64, and thus needs to be
* inserted into iomem_machine separately */
#define KEXEC_RANGE_MA_BOOT_PARAM 4 /* Obsolete: machine address and size of
* the ia64_boot_param */
#define KEXEC_RANGE_MA_EFI_MEMMAP 5 /* machine address and size of
* of the EFI Memory Map */
#define KEXEC_RANGE_MA_VMCOREINFO 6 /* machine address and size of vmcoreinfo */
/*
* Find the address and size of certain memory areas
* range == KEXEC_RANGE_... [in]
* nr == physical CPU number (starting from 0) if KEXEC_RANGE_MA_CPU [in]
* size == number of bytes reserved in window [out]
* start == address of the first byte in the window [out]
*/
#define KEXEC_CMD_kexec_get_range 3
typedef struct xen_kexec_range {
int range;
int nr;
unsigned long size;
unsigned long start;
} xen_kexec_range_t;
#endif /* _XEN_PUBLIC_KEXEC_H */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* mem_event.h
*
* Memory event common structures.
*
* Copyright (c) 2009 by Citrix Systems, Inc. (Patrick Colp)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef _XEN_PUBLIC_MEM_EVENT_H
#define _XEN_PUBLIC_MEM_EVENT_H
#include "xen.h"
#include "io/ring.h"
/* Memory event flags */
#define MEM_EVENT_FLAG_VCPU_PAUSED (1 << 0)
#define MEM_EVENT_FLAG_DROP_PAGE (1 << 1)
#define MEM_EVENT_FLAG_EVICT_FAIL (1 << 2)
#define MEM_EVENT_FLAG_FOREIGN (1 << 3)
#define MEM_EVENT_FLAG_DUMMY (1 << 4)
/* Reasons for the memory event request */
#define MEM_EVENT_REASON_UNKNOWN 0 /* typical reason */
#define MEM_EVENT_REASON_VIOLATION 1 /* access violation, GFN is address */
#define MEM_EVENT_REASON_CR0 2 /* CR0 was hit: gfn is CR0 value */
#define MEM_EVENT_REASON_CR3 3 /* CR3 was hit: gfn is CR3 value */
#define MEM_EVENT_REASON_CR4 4 /* CR4 was hit: gfn is CR4 value */
#define MEM_EVENT_REASON_INT3 5 /* int3 was hit: gla/gfn are RIP */
#define MEM_EVENT_REASON_SINGLESTEP 6 /* single step was invoked: gla/gfn are RIP */
#define MEM_EVENT_REASON_MSR 7 /* MSR was hit: gfn is MSR value, gla is MSR address;
does NOT honour HVMPME_onchangeonly */
typedef struct mem_event_st {
uint32_t flags;
uint32_t vcpu_id;
uint64_t gfn;
uint64_t offset;
uint64_t gla; /* if gla_valid */
uint32_t p2mt;
uint16_t access_r:1;
uint16_t access_w:1;
uint16_t access_x:1;
uint16_t gla_valid:1;
uint16_t available:12;
uint16_t reason;
} mem_event_request_t, mem_event_response_t;
DEFINE_RING_TYPES(mem_event, mem_event_request_t, mem_event_response_t);
#endif
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* memory.h
*
* Memory reservation and information.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2005, Keir Fraser <keir@xensource.com>
*/
#ifndef __XEN_PUBLIC_MEMORY_H__
#define __XEN_PUBLIC_MEMORY_H__
#include "xen.h"
/*
* Increase or decrease the specified domain's memory reservation. Returns the
* number of extents successfully allocated or freed.
* arg == addr of struct xen_memory_reservation.
*/
#define XENMEM_increase_reservation 0
#define XENMEM_decrease_reservation 1
#define XENMEM_populate_physmap 6
#if __XEN_INTERFACE_VERSION__ >= 0x00030209
/*
* Maximum # bits addressable by the user of the allocated region (e.g., I/O
* devices often have a 32-bit limitation even in 64-bit systems). If zero
* then the user has no addressing restriction. This field is not used by
* XENMEM_decrease_reservation.
*/
#define XENMEMF_address_bits(x) (x)
#define XENMEMF_get_address_bits(x) ((x) & 0xffu)
/* NUMA node to allocate from. */
#define XENMEMF_node(x) (((x) + 1) << 8)
#define XENMEMF_get_node(x) ((((x) >> 8) - 1) & 0xffu)
/* Flag to populate physmap with populate-on-demand entries */
#define XENMEMF_populate_on_demand (1<<16)
/* Flag to request allocation only from the node specified */
#define XENMEMF_exact_node_request (1<<17)
#define XENMEMF_exact_node(n) (XENMEMF_node(n) | XENMEMF_exact_node_request)
#endif
struct xen_memory_reservation {
/*
* XENMEM_increase_reservation:
* OUT: MFN (*not* GMFN) bases of extents that were allocated
* XENMEM_decrease_reservation:
* IN: GMFN bases of extents to free
* XENMEM_populate_physmap:
* IN: GPFN bases of extents to populate with memory
* OUT: GMFN bases of extents that were allocated
* (NB. This command also updates the mach_to_phys translation table)
* XENMEM_claim_pages:
* IN: must be zero
*/
XEN_GUEST_HANDLE(xen_pfn_t) extent_start;
/* Number of extents, and size/alignment of each (2^extent_order pages). */
xen_ulong_t nr_extents;
unsigned int extent_order;
#if __XEN_INTERFACE_VERSION__ >= 0x00030209
/* XENMEMF flags. */
unsigned int mem_flags;
#else
unsigned int address_bits;
#endif
/*
* Domain whose reservation is being changed.
* Unprivileged domains can specify only DOMID_SELF.
*/
domid_t domid;
};
typedef struct xen_memory_reservation xen_memory_reservation_t;
DEFINE_XEN_GUEST_HANDLE(xen_memory_reservation_t);
/*
* An atomic exchange of memory pages. If return code is zero then
* @out.extent_list provides GMFNs of the newly-allocated memory.
* Returns zero on complete success, otherwise a negative error code.
* On complete success then always @nr_exchanged == @in.nr_extents.
* On partial success @nr_exchanged indicates how much work was done.
*/
#define XENMEM_exchange 11
struct xen_memory_exchange {
/*
* [IN] Details of memory extents to be exchanged (GMFN bases).
* Note that @in.address_bits is ignored and unused.
*/
struct xen_memory_reservation in;
/*
* [IN/OUT] Details of new memory extents.
* We require that:
* 1. @in.domid == @out.domid
* 2. @in.nr_extents << @in.extent_order ==
* @out.nr_extents << @out.extent_order
* 3. @in.extent_start and @out.extent_start lists must not overlap
* 4. @out.extent_start lists GPFN bases to be populated
* 5. @out.extent_start is overwritten with allocated GMFN bases
*/
struct xen_memory_reservation out;
/*
* [OUT] Number of input extents that were successfully exchanged:
* 1. The first @nr_exchanged input extents were successfully
* deallocated.
* 2. The corresponding first entries in the output extent list correctly
* indicate the GMFNs that were successfully exchanged.
* 3. All other input and output extents are untouched.
* 4. If not all input exents are exchanged then the return code of this
* command will be non-zero.
* 5. THIS FIELD MUST BE INITIALISED TO ZERO BY THE CALLER!
*/
xen_ulong_t nr_exchanged;
};
typedef struct xen_memory_exchange xen_memory_exchange_t;
DEFINE_XEN_GUEST_HANDLE(xen_memory_exchange_t);
/*
* Returns the maximum machine frame number of mapped RAM in this system.
* This command always succeeds (it never returns an error code).
* arg == NULL.
*/
#define XENMEM_maximum_ram_page 2
/*
* Returns the current or maximum memory reservation, in pages, of the
* specified domain (may be DOMID_SELF). Returns -ve errcode on failure.
* arg == addr of domid_t.
*/
#define XENMEM_current_reservation 3
#define XENMEM_maximum_reservation 4
/*
* Returns the maximum GPFN in use by the guest, or -ve errcode on failure.
*/
#define XENMEM_maximum_gpfn 14
/*
* Returns a list of MFN bases of 2MB extents comprising the machine_to_phys
* mapping table. Architectures which do not have a m2p table do not implement
* this command.
* arg == addr of xen_machphys_mfn_list_t.
*/
#define XENMEM_machphys_mfn_list 5
struct xen_machphys_mfn_list {
/*
* Size of the 'extent_start' array. Fewer entries will be filled if the
* machphys table is smaller than max_extents * 2MB.
*/
unsigned int max_extents;
/*
* Pointer to buffer to fill with list of extent starts. If there are
* any large discontiguities in the machine address space, 2MB gaps in
* the machphys table will be represented by an MFN base of zero.
*/
XEN_GUEST_HANDLE(xen_pfn_t) extent_start;
/*
* Number of extents written to the above array. This will be smaller
* than 'max_extents' if the machphys table is smaller than max_e * 2MB.
*/
unsigned int nr_extents;
};
typedef struct xen_machphys_mfn_list xen_machphys_mfn_list_t;
DEFINE_XEN_GUEST_HANDLE(xen_machphys_mfn_list_t);
/*
* Returns the location in virtual address space of the machine_to_phys
* mapping table. Architectures which do not have a m2p table, or which do not
* map it by default into guest address space, do not implement this command.
* arg == addr of xen_machphys_mapping_t.
*/
#define XENMEM_machphys_mapping 12
struct xen_machphys_mapping {
xen_ulong_t v_start, v_end; /* Start and end virtual addresses. */
xen_ulong_t max_mfn; /* Maximum MFN that can be looked up. */
};
typedef struct xen_machphys_mapping xen_machphys_mapping_t;
DEFINE_XEN_GUEST_HANDLE(xen_machphys_mapping_t);
/* Source mapping space. */
/* ` enum phys_map_space { */
#define XENMAPSPACE_shared_info 0 /* shared info page */
#define XENMAPSPACE_grant_table 1 /* grant table page */
#define XENMAPSPACE_gmfn 2 /* GMFN */
#define XENMAPSPACE_gmfn_range 3 /* GMFN range, XENMEM_add_to_physmap only. */
#define XENMAPSPACE_gmfn_foreign 4 /* GMFN from another dom, XENMEM_add_to_physmap_range only. */
/* ` } */
/*
* Sets the GPFN at which a particular page appears in the specified guest's
* pseudophysical address space.
* arg == addr of xen_add_to_physmap_t.
*/
#define XENMEM_add_to_physmap 7
struct xen_add_to_physmap {
/* Which domain to change the mapping for. */
domid_t domid;
/* Number of pages to go through for gmfn_range */
uint16_t size;
unsigned int space; /* => enum phys_map_space */
#define XENMAPIDX_grant_table_status 0x80000000
/* Index into space being mapped. */
xen_ulong_t idx;
/* GPFN in domid where the source mapping page should appear. */
xen_pfn_t gpfn;
};
typedef struct xen_add_to_physmap xen_add_to_physmap_t;
DEFINE_XEN_GUEST_HANDLE(xen_add_to_physmap_t);
/* A batched version of add_to_physmap. */
#define XENMEM_add_to_physmap_range 23
struct xen_add_to_physmap_range {
/* IN */
/* Which domain to change the mapping for. */
domid_t domid;
uint16_t space; /* => enum phys_map_space */
/* Number of pages to go through */
uint16_t size;
domid_t foreign_domid; /* IFF gmfn_foreign */
/* Indexes into space being mapped. */
XEN_GUEST_HANDLE(xen_ulong_t) idxs;
/* GPFN in domid where the source mapping page should appear. */
XEN_GUEST_HANDLE(xen_pfn_t) gpfns;
/* OUT */
/* Per index error code. */
XEN_GUEST_HANDLE(int) errs;
};
typedef struct xen_add_to_physmap_range xen_add_to_physmap_range_t;
DEFINE_XEN_GUEST_HANDLE(xen_add_to_physmap_range_t);
/*
* Unmaps the page appearing at a particular GPFN from the specified guest's
* pseudophysical address space.
* arg == addr of xen_remove_from_physmap_t.
*/
#define XENMEM_remove_from_physmap 15
struct xen_remove_from_physmap {
/* Which domain to change the mapping for. */
domid_t domid;
/* GPFN of the current mapping of the page. */
xen_pfn_t gpfn;
};
typedef struct xen_remove_from_physmap xen_remove_from_physmap_t;
DEFINE_XEN_GUEST_HANDLE(xen_remove_from_physmap_t);
/*** REMOVED ***/
/*#define XENMEM_translate_gpfn_list 8*/
/*
* Returns the pseudo-physical memory map as it was when the domain
* was started (specified by XENMEM_set_memory_map).
* arg == addr of xen_memory_map_t.
*/
#define XENMEM_memory_map 9
struct xen_memory_map {
/*
* On call the number of entries which can be stored in buffer. On
* return the number of entries which have been stored in
* buffer.
*/
unsigned int nr_entries;
/*
* Entries in the buffer are in the same format as returned by the
* BIOS INT 0x15 EAX=0xE820 call.
*/
XEN_GUEST_HANDLE(void) buffer;
};
typedef struct xen_memory_map xen_memory_map_t;
DEFINE_XEN_GUEST_HANDLE(xen_memory_map_t);
/*
* Returns the real physical memory map. Passes the same structure as
* XENMEM_memory_map.
* arg == addr of xen_memory_map_t.
*/
#define XENMEM_machine_memory_map 10
/*
* Set the pseudo-physical memory map of a domain, as returned by
* XENMEM_memory_map.
* arg == addr of xen_foreign_memory_map_t.
*/
#define XENMEM_set_memory_map 13
struct xen_foreign_memory_map {
domid_t domid;
struct xen_memory_map map;
};
typedef struct xen_foreign_memory_map xen_foreign_memory_map_t;
DEFINE_XEN_GUEST_HANDLE(xen_foreign_memory_map_t);
#define XENMEM_set_pod_target 16
#define XENMEM_get_pod_target 17
struct xen_pod_target {
/* IN */
uint64_t target_pages;
/* OUT */
uint64_t tot_pages;
uint64_t pod_cache_pages;
uint64_t pod_entries;
/* IN */
domid_t domid;
};
typedef struct xen_pod_target xen_pod_target_t;
#if defined(__XEN__) || defined(__XEN_TOOLS__)
#ifndef uint64_aligned_t
#define uint64_aligned_t uint64_t
#endif
/*
* Get the number of MFNs saved through memory sharing.
* The call never fails.
*/
#define XENMEM_get_sharing_freed_pages 18
#define XENMEM_get_sharing_shared_pages 19
#define XENMEM_paging_op 20
#define XENMEM_paging_op_nominate 0
#define XENMEM_paging_op_evict 1
#define XENMEM_paging_op_prep 2
#define XENMEM_access_op 21
#define XENMEM_access_op_resume 0
struct xen_mem_event_op {
uint8_t op; /* XENMEM_*_op_* */
domid_t domain;
/* PAGING_PREP IN: buffer to immediately fill page in */
uint64_aligned_t buffer;
/* Other OPs */
uint64_aligned_t gfn; /* IN: gfn of page being operated on */
};
typedef struct xen_mem_event_op xen_mem_event_op_t;
DEFINE_XEN_GUEST_HANDLE(xen_mem_event_op_t);
#define XENMEM_sharing_op 22
#define XENMEM_sharing_op_nominate_gfn 0
#define XENMEM_sharing_op_nominate_gref 1
#define XENMEM_sharing_op_share 2
#define XENMEM_sharing_op_resume 3
#define XENMEM_sharing_op_debug_gfn 4
#define XENMEM_sharing_op_debug_mfn 5
#define XENMEM_sharing_op_debug_gref 6
#define XENMEM_sharing_op_add_physmap 7
#define XENMEM_sharing_op_audit 8
#define XENMEM_SHARING_OP_S_HANDLE_INVALID (-10)
#define XENMEM_SHARING_OP_C_HANDLE_INVALID (-9)
/* The following allows sharing of grant refs. This is useful
* for sharing utilities sitting as "filters" in IO backends
* (e.g. memshr + blktap(2)). The IO backend is only exposed
* to grant references, and this allows sharing of the grefs */
#define XENMEM_SHARING_OP_FIELD_IS_GREF_FLAG (1ULL << 62)
#define XENMEM_SHARING_OP_FIELD_MAKE_GREF(field, val) \
(field) = (XENMEM_SHARING_OP_FIELD_IS_GREF_FLAG | val)
#define XENMEM_SHARING_OP_FIELD_IS_GREF(field) \
((field) & XENMEM_SHARING_OP_FIELD_IS_GREF_FLAG)
#define XENMEM_SHARING_OP_FIELD_GET_GREF(field) \
((field) & (~XENMEM_SHARING_OP_FIELD_IS_GREF_FLAG))
struct xen_mem_sharing_op {
uint8_t op; /* XENMEM_sharing_op_* */
domid_t domain;
union {
struct mem_sharing_op_nominate { /* OP_NOMINATE_xxx */
union {
uint64_aligned_t gfn; /* IN: gfn to nominate */
uint32_t grant_ref; /* IN: grant ref to nominate */
} u;
uint64_aligned_t handle; /* OUT: the handle */
} nominate;
struct mem_sharing_op_share { /* OP_SHARE/ADD_PHYSMAP */
uint64_aligned_t source_gfn; /* IN: the gfn of the source page */
uint64_aligned_t source_handle; /* IN: handle to the source page */
uint64_aligned_t client_gfn; /* IN: the client gfn */
uint64_aligned_t client_handle; /* IN: handle to the client page */
domid_t client_domain; /* IN: the client domain id */
} share;
struct mem_sharing_op_debug { /* OP_DEBUG_xxx */
union {
uint64_aligned_t gfn; /* IN: gfn to debug */
uint64_aligned_t mfn; /* IN: mfn to debug */
uint32_t gref; /* IN: gref to debug */
} u;
} debug;
} u;
};
typedef struct xen_mem_sharing_op xen_mem_sharing_op_t;
DEFINE_XEN_GUEST_HANDLE(xen_mem_sharing_op_t);
/*
* Attempt to stake a claim for a domain on a quantity of pages
* of system RAM, but _not_ assign specific pageframes. Only
* arithmetic is performed so the hypercall is very fast and need
* not be preemptible, thus sidestepping time-of-check-time-of-use
* races for memory allocation. Returns 0 if the hypervisor page
* allocator has atomically and successfully claimed the requested
* number of pages, else non-zero.
*
* Any domain may have only one active claim. When sufficient memory
* has been allocated to resolve the claim, the claim silently expires.
* Claiming zero pages effectively resets any outstanding claim and
* is always successful.
*
* Note that a valid claim may be staked even after memory has been
* allocated for a domain. In this case, the claim is not incremental,
* i.e. if the domain's tot_pages is 3, and a claim is staked for 10,
* only 7 additional pages are claimed.
*
* Caller must be privileged or the hypercall fails.
*/
#define XENMEM_claim_pages 24
/*
* XENMEM_claim_pages flags - the are no flags at this time.
* The zero value is appropiate.
*/
#endif /* defined(__XEN__) || defined(__XEN_TOOLS__) */
#endif /* __XEN_PUBLIC_MEMORY_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* nmi.h
*
* NMI callback registration and reason codes.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2005, Keir Fraser <keir@xensource.com>
*/
#ifndef __XEN_PUBLIC_NMI_H__
#define __XEN_PUBLIC_NMI_H__
#include "xen.h"
/*
* NMI reason codes:
* Currently these are x86-specific, stored in arch_shared_info.nmi_reason.
*/
/* I/O-check error reported via ISA port 0x61, bit 6. */
#define _XEN_NMIREASON_io_error 0
#define XEN_NMIREASON_io_error (1UL << _XEN_NMIREASON_io_error)
/* PCI SERR reported via ISA port 0x61, bit 7. */
#define _XEN_NMIREASON_pci_serr 1
#define XEN_NMIREASON_pci_serr (1UL << _XEN_NMIREASON_pci_serr)
#if __XEN_INTERFACE_VERSION__ < 0x00040300 /* legacy alias of the above */
/* Parity error reported via ISA port 0x61, bit 7. */
#define _XEN_NMIREASON_parity_error 1
#define XEN_NMIREASON_parity_error (1UL << _XEN_NMIREASON_parity_error)
#endif
/* Unknown hardware-generated NMI. */
#define _XEN_NMIREASON_unknown 2
#define XEN_NMIREASON_unknown (1UL << _XEN_NMIREASON_unknown)
/*
* long nmi_op(unsigned int cmd, void *arg)
* NB. All ops return zero on success, else a negative error code.
*/
/*
* Register NMI callback for this (calling) VCPU. Currently this only makes
* sense for domain 0, vcpu 0. All other callers will be returned EINVAL.
* arg == pointer to xennmi_callback structure.
*/
#define XENNMI_register_callback 0
struct xennmi_callback {
unsigned long handler_address;
unsigned long pad;
};
typedef struct xennmi_callback xennmi_callback_t;
DEFINE_XEN_GUEST_HANDLE(xennmi_callback_t);
/*
* Deregister NMI callback for this (calling) VCPU.
* arg == NULL.
*/
#define XENNMI_unregister_callback 1
#endif /* __XEN_PUBLIC_NMI_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef __XEN_PUBLIC_PHYSDEV_H__
#define __XEN_PUBLIC_PHYSDEV_H__
#include "xen.h"
/*
* Prototype for this hypercall is:
* int physdev_op(int cmd, void *args)
* @cmd == PHYSDEVOP_??? (physdev operation).
* @args == Operation-specific extra arguments (NULL if none).
*/
/*
* Notify end-of-interrupt (EOI) for the specified IRQ.
* @arg == pointer to physdev_eoi structure.
*/
#define PHYSDEVOP_eoi 12
struct physdev_eoi {
/* IN */
uint32_t irq;
};
typedef struct physdev_eoi physdev_eoi_t;
DEFINE_XEN_GUEST_HANDLE(physdev_eoi_t);
/*
* Register a shared page for the hypervisor to indicate whether the guest
* must issue PHYSDEVOP_eoi. The semantics of PHYSDEVOP_eoi change slightly
* once the guest used this function in that the associated event channel
* will automatically get unmasked. The page registered is used as a bit
* array indexed by Xen's PIRQ value.
*/
#define PHYSDEVOP_pirq_eoi_gmfn_v1 17
/*
* Register a shared page for the hypervisor to indicate whether the
* guest must issue PHYSDEVOP_eoi. This hypercall is very similar to
* PHYSDEVOP_pirq_eoi_gmfn_v1 but it doesn't change the semantics of
* PHYSDEVOP_eoi. The page registered is used as a bit array indexed by
* Xen's PIRQ value.
*/
#define PHYSDEVOP_pirq_eoi_gmfn_v2 28
struct physdev_pirq_eoi_gmfn {
/* IN */
xen_pfn_t gmfn;
};
typedef struct physdev_pirq_eoi_gmfn physdev_pirq_eoi_gmfn_t;
DEFINE_XEN_GUEST_HANDLE(physdev_pirq_eoi_gmfn_t);
/*
* Query the status of an IRQ line.
* @arg == pointer to physdev_irq_status_query structure.
*/
#define PHYSDEVOP_irq_status_query 5
struct physdev_irq_status_query {
/* IN */
uint32_t irq;
/* OUT */
uint32_t flags; /* XENIRQSTAT_* */
};
typedef struct physdev_irq_status_query physdev_irq_status_query_t;
DEFINE_XEN_GUEST_HANDLE(physdev_irq_status_query_t);
/* Need to call PHYSDEVOP_eoi when the IRQ has been serviced? */
#define _XENIRQSTAT_needs_eoi (0)
#define XENIRQSTAT_needs_eoi (1U<<_XENIRQSTAT_needs_eoi)
/* IRQ shared by multiple guests? */
#define _XENIRQSTAT_shared (1)
#define XENIRQSTAT_shared (1U<<_XENIRQSTAT_shared)
/*
* Set the current VCPU's I/O privilege level.
* @arg == pointer to physdev_set_iopl structure.
*/
#define PHYSDEVOP_set_iopl 6
struct physdev_set_iopl {
/* IN */
uint32_t iopl;
};
typedef struct physdev_set_iopl physdev_set_iopl_t;
DEFINE_XEN_GUEST_HANDLE(physdev_set_iopl_t);
/*
* Set the current VCPU's I/O-port permissions bitmap.
* @arg == pointer to physdev_set_iobitmap structure.
*/
#define PHYSDEVOP_set_iobitmap 7
struct physdev_set_iobitmap {
/* IN */
#if __XEN_INTERFACE_VERSION__ >= 0x00030205
XEN_GUEST_HANDLE(uint8) bitmap;
#else
uint8_t *bitmap;
#endif
uint32_t nr_ports;
};
typedef struct physdev_set_iobitmap physdev_set_iobitmap_t;
DEFINE_XEN_GUEST_HANDLE(physdev_set_iobitmap_t);
/*
* Read or write an IO-APIC register.
* @arg == pointer to physdev_apic structure.
*/
#define PHYSDEVOP_apic_read 8
#define PHYSDEVOP_apic_write 9
struct physdev_apic {
/* IN */
unsigned long apic_physbase;
uint32_t reg;
/* IN or OUT */
uint32_t value;
};
typedef struct physdev_apic physdev_apic_t;
DEFINE_XEN_GUEST_HANDLE(physdev_apic_t);
/*
* Allocate or free a physical upcall vector for the specified IRQ line.
* @arg == pointer to physdev_irq structure.
*/
#define PHYSDEVOP_alloc_irq_vector 10
#define PHYSDEVOP_free_irq_vector 11
struct physdev_irq {
/* IN */
uint32_t irq;
/* IN or OUT */
uint32_t vector;
};
typedef struct physdev_irq physdev_irq_t;
DEFINE_XEN_GUEST_HANDLE(physdev_irq_t);
#define MAP_PIRQ_TYPE_MSI 0x0
#define MAP_PIRQ_TYPE_GSI 0x1
#define MAP_PIRQ_TYPE_UNKNOWN 0x2
#define MAP_PIRQ_TYPE_MSI_SEG 0x3
#define PHYSDEVOP_map_pirq 13
struct physdev_map_pirq {
domid_t domid;
/* IN */
int type;
/* IN */
int index;
/* IN or OUT */
int pirq;
/* IN - high 16 bits hold segment for MAP_PIRQ_TYPE_MSI_SEG */
int bus;
/* IN */
int devfn;
/* IN */
int entry_nr;
/* IN */
uint64_t table_base;
};
typedef struct physdev_map_pirq physdev_map_pirq_t;
DEFINE_XEN_GUEST_HANDLE(physdev_map_pirq_t);
#define PHYSDEVOP_unmap_pirq 14
struct physdev_unmap_pirq {
domid_t domid;
/* IN */
int pirq;
};
typedef struct physdev_unmap_pirq physdev_unmap_pirq_t;
DEFINE_XEN_GUEST_HANDLE(physdev_unmap_pirq_t);
#define PHYSDEVOP_manage_pci_add 15
#define PHYSDEVOP_manage_pci_remove 16
struct physdev_manage_pci {
/* IN */
uint8_t bus;
uint8_t devfn;
};
typedef struct physdev_manage_pci physdev_manage_pci_t;
DEFINE_XEN_GUEST_HANDLE(physdev_manage_pci_t);
#define PHYSDEVOP_restore_msi 19
struct physdev_restore_msi {
/* IN */
uint8_t bus;
uint8_t devfn;
};
typedef struct physdev_restore_msi physdev_restore_msi_t;
DEFINE_XEN_GUEST_HANDLE(physdev_restore_msi_t);
#define PHYSDEVOP_manage_pci_add_ext 20
struct physdev_manage_pci_ext {
/* IN */
uint8_t bus;
uint8_t devfn;
unsigned is_extfn;
unsigned is_virtfn;
struct {
uint8_t bus;
uint8_t devfn;
} physfn;
};
typedef struct physdev_manage_pci_ext physdev_manage_pci_ext_t;
DEFINE_XEN_GUEST_HANDLE(physdev_manage_pci_ext_t);
/*
* Argument to physdev_op_compat() hypercall. Superceded by new physdev_op()
* hypercall since 0x00030202.
*/
struct physdev_op {
uint32_t cmd;
union {
struct physdev_irq_status_query irq_status_query;
struct physdev_set_iopl set_iopl;
struct physdev_set_iobitmap set_iobitmap;
struct physdev_apic apic_op;
struct physdev_irq irq_op;
} u;
};
typedef struct physdev_op physdev_op_t;
DEFINE_XEN_GUEST_HANDLE(physdev_op_t);
#define PHYSDEVOP_setup_gsi 21
struct physdev_setup_gsi {
int gsi;
/* IN */
uint8_t triggering;
/* IN */
uint8_t polarity;
/* IN */
};
typedef struct physdev_setup_gsi physdev_setup_gsi_t;
DEFINE_XEN_GUEST_HANDLE(physdev_setup_gsi_t);
/* leave PHYSDEVOP 22 free */
/* type is MAP_PIRQ_TYPE_GSI or MAP_PIRQ_TYPE_MSI
* the hypercall returns a free pirq */
#define PHYSDEVOP_get_free_pirq 23
struct physdev_get_free_pirq {
/* IN */
int type;
/* OUT */
uint32_t pirq;
};
typedef struct physdev_get_free_pirq physdev_get_free_pirq_t;
DEFINE_XEN_GUEST_HANDLE(physdev_get_free_pirq_t);
#define XEN_PCI_MMCFG_RESERVED 0x1
#define PHYSDEVOP_pci_mmcfg_reserved 24
struct physdev_pci_mmcfg_reserved {
uint64_t address;
uint16_t segment;
uint8_t start_bus;
uint8_t end_bus;
uint32_t flags;
};
typedef struct physdev_pci_mmcfg_reserved physdev_pci_mmcfg_reserved_t;
DEFINE_XEN_GUEST_HANDLE(physdev_pci_mmcfg_reserved_t);
#define XEN_PCI_DEV_EXTFN 0x1
#define XEN_PCI_DEV_VIRTFN 0x2
#define XEN_PCI_DEV_PXM 0x4
#define PHYSDEVOP_pci_device_add 25
struct physdev_pci_device_add {
/* IN */
uint16_t seg;
uint8_t bus;
uint8_t devfn;
uint32_t flags;
struct {
uint8_t bus;
uint8_t devfn;
} physfn;
#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
uint32_t optarr[];
#elif defined(__GNUC__)
uint32_t optarr[0];
#endif
};
typedef struct physdev_pci_device_add physdev_pci_device_add_t;
DEFINE_XEN_GUEST_HANDLE(physdev_pci_device_add_t);
#define PHYSDEVOP_pci_device_remove 26
#define PHYSDEVOP_restore_msi_ext 27
/*
* Dom0 should use these two to announce MMIO resources assigned to
* MSI-X capable devices won't (prepare) or may (release) change.
*/
#define PHYSDEVOP_prepare_msix 30
#define PHYSDEVOP_release_msix 31
struct physdev_pci_device {
/* IN */
uint16_t seg;
uint8_t bus;
uint8_t devfn;
};
typedef struct physdev_pci_device physdev_pci_device_t;
DEFINE_XEN_GUEST_HANDLE(physdev_pci_device_t);
#define PHYSDEVOP_DBGP_RESET_PREPARE 1
#define PHYSDEVOP_DBGP_RESET_DONE 2
#define PHYSDEVOP_DBGP_BUS_UNKNOWN 0
#define PHYSDEVOP_DBGP_BUS_PCI 1
#define PHYSDEVOP_dbgp_op 29
struct physdev_dbgp_op {
/* IN */
uint8_t op;
uint8_t bus;
union {
struct physdev_pci_device pci;
} u;
};
typedef struct physdev_dbgp_op physdev_dbgp_op_t;
DEFINE_XEN_GUEST_HANDLE(physdev_dbgp_op_t);
/*
* Notify that some PIRQ-bound event channels have been unmasked.
* ** This command is obsolete since interface version 0x00030202 and is **
* ** unsupported by newer versions of Xen. **
*/
#define PHYSDEVOP_IRQ_UNMASK_NOTIFY 4
/*
* These all-capitals physdev operation names are superceded by the new names
* (defined above) since interface version 0x00030202.
*/
#define PHYSDEVOP_IRQ_STATUS_QUERY PHYSDEVOP_irq_status_query
#define PHYSDEVOP_SET_IOPL PHYSDEVOP_set_iopl
#define PHYSDEVOP_SET_IOBITMAP PHYSDEVOP_set_iobitmap
#define PHYSDEVOP_APIC_READ PHYSDEVOP_apic_read
#define PHYSDEVOP_APIC_WRITE PHYSDEVOP_apic_write
#define PHYSDEVOP_ASSIGN_VECTOR PHYSDEVOP_alloc_irq_vector
#define PHYSDEVOP_FREE_VECTOR PHYSDEVOP_free_irq_vector
#define PHYSDEVOP_IRQ_NEEDS_UNMASK_NOTIFY XENIRQSTAT_needs_eoi
#define PHYSDEVOP_IRQ_SHARED XENIRQSTAT_shared
#if __XEN_INTERFACE_VERSION__ < 0x00040200
#define PHYSDEVOP_pirq_eoi_gmfn PHYSDEVOP_pirq_eoi_gmfn_v1
#else
#define PHYSDEVOP_pirq_eoi_gmfn PHYSDEVOP_pirq_eoi_gmfn_v2
#endif
#endif /* __XEN_PUBLIC_PHYSDEV_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* platform.h
*
* Hardware platform operations. Intended for use by domain-0 kernel.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2002-2006, K Fraser
*/
#ifndef __XEN_PUBLIC_PLATFORM_H__
#define __XEN_PUBLIC_PLATFORM_H__
#include "xen.h"
#define XENPF_INTERFACE_VERSION 0x03000001
/*
* Set clock such that it would read <secs,nsecs> after 00:00:00 UTC,
* 1 January, 1970 if the current system time was <system_time>.
*/
#define XENPF_settime 17
struct xenpf_settime {
/* IN variables. */
uint32_t secs;
uint32_t nsecs;
uint64_t system_time;
};
typedef struct xenpf_settime xenpf_settime_t;
DEFINE_XEN_GUEST_HANDLE(xenpf_settime_t);
/*
* Request memory range (@mfn, @mfn+@nr_mfns-1) to have type @type.
* On x86, @type is an architecture-defined MTRR memory type.
* On success, returns the MTRR that was used (@reg) and a handle that can
* be passed to XENPF_DEL_MEMTYPE to accurately tear down the new setting.
* (x86-specific).
*/
#define XENPF_add_memtype 31
struct xenpf_add_memtype {
/* IN variables. */
xen_pfn_t mfn;
uint64_t nr_mfns;
uint32_t type;
/* OUT variables. */
uint32_t handle;
uint32_t reg;
};
typedef struct xenpf_add_memtype xenpf_add_memtype_t;
DEFINE_XEN_GUEST_HANDLE(xenpf_add_memtype_t);
/*
* Tear down an existing memory-range type. If @handle is remembered then it
* should be passed in to accurately tear down the correct setting (in case
* of overlapping memory regions with differing types). If it is not known
* then @handle should be set to zero. In all cases @reg must be set.
* (x86-specific).
*/
#define XENPF_del_memtype 32
struct xenpf_del_memtype {
/* IN variables. */
uint32_t handle;
uint32_t reg;
};
typedef struct xenpf_del_memtype xenpf_del_memtype_t;
DEFINE_XEN_GUEST_HANDLE(xenpf_del_memtype_t);
/* Read current type of an MTRR (x86-specific). */
#define XENPF_read_memtype 33
struct xenpf_read_memtype {
/* IN variables. */
uint32_t reg;
/* OUT variables. */
xen_pfn_t mfn;
uint64_t nr_mfns;
uint32_t type;
};
typedef struct xenpf_read_memtype xenpf_read_memtype_t;
DEFINE_XEN_GUEST_HANDLE(xenpf_read_memtype_t);
#define XENPF_microcode_update 35
struct xenpf_microcode_update {
/* IN variables. */
XEN_GUEST_HANDLE(const_void) data;/* Pointer to microcode data */
uint32_t length; /* Length of microcode data. */
};
typedef struct xenpf_microcode_update xenpf_microcode_update_t;
DEFINE_XEN_GUEST_HANDLE(xenpf_microcode_update_t);
#define XENPF_platform_quirk 39
#define QUIRK_NOIRQBALANCING 1 /* Do not restrict IO-APIC RTE targets */
#define QUIRK_IOAPIC_BAD_REGSEL 2 /* IO-APIC REGSEL forgets its value */
#define QUIRK_IOAPIC_GOOD_REGSEL 3 /* IO-APIC REGSEL behaves properly */
struct xenpf_platform_quirk {
/* IN variables. */
uint32_t quirk_id;
};
typedef struct xenpf_platform_quirk xenpf_platform_quirk_t;
DEFINE_XEN_GUEST_HANDLE(xenpf_platform_quirk_t);
#define XENPF_efi_runtime_call 49
#define XEN_EFI_get_time 1
#define XEN_EFI_set_time 2
#define XEN_EFI_get_wakeup_time 3
#define XEN_EFI_set_wakeup_time 4
#define XEN_EFI_get_next_high_monotonic_count 5
#define XEN_EFI_get_variable 6
#define XEN_EFI_set_variable 7
#define XEN_EFI_get_next_variable_name 8
#define XEN_EFI_query_variable_info 9
#define XEN_EFI_query_capsule_capabilities 10
#define XEN_EFI_update_capsule 11
struct xenpf_efi_runtime_call {
uint32_t function;
/*
* This field is generally used for per sub-function flags (defined
* below), except for the XEN_EFI_get_next_high_monotonic_count case,
* where it holds the single returned value.
*/
uint32_t misc;
unsigned long status;
union {
#define XEN_EFI_GET_TIME_SET_CLEARS_NS 0x00000001
struct {
struct xenpf_efi_time {
uint16_t year;
uint8_t month;
uint8_t day;
uint8_t hour;
uint8_t min;
uint8_t sec;
uint32_t ns;
int16_t tz;
uint8_t daylight;
} time;
uint32_t resolution;
uint32_t accuracy;
} get_time;
struct xenpf_efi_time set_time;
#define XEN_EFI_GET_WAKEUP_TIME_ENABLED 0x00000001
#define XEN_EFI_GET_WAKEUP_TIME_PENDING 0x00000002
struct xenpf_efi_time get_wakeup_time;
#define XEN_EFI_SET_WAKEUP_TIME_ENABLE 0x00000001
#define XEN_EFI_SET_WAKEUP_TIME_ENABLE_ONLY 0x00000002
struct xenpf_efi_time set_wakeup_time;
#define XEN_EFI_VARIABLE_NON_VOLATILE 0x00000001
#define XEN_EFI_VARIABLE_BOOTSERVICE_ACCESS 0x00000002
#define XEN_EFI_VARIABLE_RUNTIME_ACCESS 0x00000004
struct {
XEN_GUEST_HANDLE(void) name; /* UCS-2/UTF-16 string */
unsigned long size;
XEN_GUEST_HANDLE(void) data;
struct xenpf_efi_guid {
uint32_t data1;
uint16_t data2;
uint16_t data3;
uint8_t data4[8];
} vendor_guid;
} get_variable, set_variable;
struct {
unsigned long size;
XEN_GUEST_HANDLE(void) name; /* UCS-2/UTF-16 string */
struct xenpf_efi_guid vendor_guid;
} get_next_variable_name;
#define XEN_EFI_VARINFO_BOOT_SNAPSHOT 0x00000001
struct {
uint32_t attr;
uint64_t max_store_size;
uint64_t remain_store_size;
uint64_t max_size;
} query_variable_info;
struct {
XEN_GUEST_HANDLE(void) capsule_header_array;
unsigned long capsule_count;
uint64_t max_capsule_size;
unsigned int reset_type;
} query_capsule_capabilities;
struct {
XEN_GUEST_HANDLE(void) capsule_header_array;
unsigned long capsule_count;
uint64_t sg_list; /* machine address */
} update_capsule;
} u;
};
typedef struct xenpf_efi_runtime_call xenpf_efi_runtime_call_t;
DEFINE_XEN_GUEST_HANDLE(xenpf_efi_runtime_call_t);
#define XENPF_firmware_info 50
#define XEN_FW_DISK_INFO 1 /* from int 13 AH=08/41/48 */
#define XEN_FW_DISK_MBR_SIGNATURE 2 /* from MBR offset 0x1b8 */
#define XEN_FW_VBEDDC_INFO 3 /* from int 10 AX=4f15 */
#define XEN_FW_EFI_INFO 4 /* from EFI */
#define XEN_FW_EFI_VERSION 0
#define XEN_FW_EFI_CONFIG_TABLE 1
#define XEN_FW_EFI_VENDOR 2
#define XEN_FW_EFI_MEM_INFO 3
#define XEN_FW_EFI_RT_VERSION 4
#define XEN_FW_EFI_PCI_ROM 5
#define XEN_FW_KBD_SHIFT_FLAGS 5
struct xenpf_firmware_info {
/* IN variables. */
uint32_t type;
uint32_t index;
/* OUT variables. */
union {
struct {
/* Int13, Fn48: Check Extensions Present. */
uint8_t device; /* %dl: bios device number */
uint8_t version; /* %ah: major version */
uint16_t interface_support; /* %cx: support bitmap */
/* Int13, Fn08: Legacy Get Device Parameters. */
uint16_t legacy_max_cylinder; /* %cl[7:6]:%ch: max cyl # */
uint8_t legacy_max_head; /* %dh: max head # */
uint8_t legacy_sectors_per_track; /* %cl[5:0]: max sector # */
/* Int13, Fn41: Get Device Parameters (as filled into %ds:%esi). */
/* NB. First uint16_t of buffer must be set to buffer size. */
XEN_GUEST_HANDLE(void) edd_params;
} disk_info; /* XEN_FW_DISK_INFO */
struct {
uint8_t device; /* bios device number */
uint32_t mbr_signature; /* offset 0x1b8 in mbr */
} disk_mbr_signature; /* XEN_FW_DISK_MBR_SIGNATURE */
struct {
/* Int10, AX=4F15: Get EDID info. */
uint8_t capabilities;
uint8_t edid_transfer_time;
/* must refer to 128-byte buffer */
XEN_GUEST_HANDLE(uint8) edid;
} vbeddc_info; /* XEN_FW_VBEDDC_INFO */
union xenpf_efi_info {
uint32_t version;
struct {
uint64_t addr; /* EFI_CONFIGURATION_TABLE */
uint32_t nent;
} cfg;
struct {
uint32_t revision;
uint32_t bufsz; /* input, in bytes */
XEN_GUEST_HANDLE(void) name; /* UCS-2/UTF-16 string */
} vendor;
struct {
uint64_t addr;
uint64_t size;
uint64_t attr;
uint32_t type;
} mem;
struct {
/* IN variables */
uint16_t segment;
uint8_t bus;
uint8_t devfn;
uint16_t vendor;
uint16_t devid;
/* OUT variables */
uint64_t address;
xen_ulong_t size;
} pci_rom;
} efi_info; /* XEN_FW_EFI_INFO */
/* Int16, Fn02: Get keyboard shift flags. */
uint8_t kbd_shift_flags; /* XEN_FW_KBD_SHIFT_FLAGS */
} u;
};
typedef struct xenpf_firmware_info xenpf_firmware_info_t;
DEFINE_XEN_GUEST_HANDLE(xenpf_firmware_info_t);
#define XENPF_enter_acpi_sleep 51
struct xenpf_enter_acpi_sleep {
/* IN variables */
#if __XEN_INTERFACE_VERSION__ < 0x00040300
uint16_t pm1a_cnt_val; /* PM1a control value. */
uint16_t pm1b_cnt_val; /* PM1b control value. */
#else
uint16_t val_a; /* PM1a control / sleep type A. */
uint16_t val_b; /* PM1b control / sleep type B. */
#endif
uint32_t sleep_state; /* Which state to enter (Sn). */
#define XENPF_ACPI_SLEEP_EXTENDED 0x00000001
uint32_t flags; /* XENPF_ACPI_SLEEP_*. */
};
typedef struct xenpf_enter_acpi_sleep xenpf_enter_acpi_sleep_t;
DEFINE_XEN_GUEST_HANDLE(xenpf_enter_acpi_sleep_t);
#define XENPF_change_freq 52
struct xenpf_change_freq {
/* IN variables */
uint32_t flags; /* Must be zero. */
uint32_t cpu; /* Physical cpu. */
uint64_t freq; /* New frequency (Hz). */
};
typedef struct xenpf_change_freq xenpf_change_freq_t;
DEFINE_XEN_GUEST_HANDLE(xenpf_change_freq_t);
/*
* Get idle times (nanoseconds since boot) for physical CPUs specified in the
* @cpumap_bitmap with range [0..@cpumap_nr_cpus-1]. The @idletime array is
* indexed by CPU number; only entries with the corresponding @cpumap_bitmap
* bit set are written to. On return, @cpumap_bitmap is modified so that any
* non-existent CPUs are cleared. Such CPUs have their @idletime array entry
* cleared.
*/
#define XENPF_getidletime 53
struct xenpf_getidletime {
/* IN/OUT variables */
/* IN: CPUs to interrogate; OUT: subset of IN which are present */
XEN_GUEST_HANDLE(uint8) cpumap_bitmap;
/* IN variables */
/* Size of cpumap bitmap. */
uint32_t cpumap_nr_cpus;
/* Must be indexable for every cpu in cpumap_bitmap. */
XEN_GUEST_HANDLE(uint64) idletime;
/* OUT variables */
/* System time when the idletime snapshots were taken. */
uint64_t now;
};
typedef struct xenpf_getidletime xenpf_getidletime_t;
DEFINE_XEN_GUEST_HANDLE(xenpf_getidletime_t);
#define XENPF_set_processor_pminfo 54
/* ability bits */
#define XEN_PROCESSOR_PM_CX 1
#define XEN_PROCESSOR_PM_PX 2
#define XEN_PROCESSOR_PM_TX 4
/* cmd type */
#define XEN_PM_CX 0
#define XEN_PM_PX 1
#define XEN_PM_TX 2
#define XEN_PM_PDC 3
/* Px sub info type */
#define XEN_PX_PCT 1
#define XEN_PX_PSS 2
#define XEN_PX_PPC 4
#define XEN_PX_PSD 8
struct xen_power_register {
uint32_t space_id;
uint32_t bit_width;
uint32_t bit_offset;
uint32_t access_size;
uint64_t address;
};
struct xen_processor_csd {
uint32_t domain; /* domain number of one dependent group */
uint32_t coord_type; /* coordination type */
uint32_t num; /* number of processors in same domain */
};
typedef struct xen_processor_csd xen_processor_csd_t;
DEFINE_XEN_GUEST_HANDLE(xen_processor_csd_t);
struct xen_processor_cx {
struct xen_power_register reg; /* GAS for Cx trigger register */
uint8_t type; /* cstate value, c0: 0, c1: 1, ... */
uint32_t latency; /* worst latency (ms) to enter/exit this cstate */
uint32_t power; /* average power consumption(mW) */
uint32_t dpcnt; /* number of dependency entries */
XEN_GUEST_HANDLE(xen_processor_csd_t) dp; /* NULL if no dependency */
};
typedef struct xen_processor_cx xen_processor_cx_t;
DEFINE_XEN_GUEST_HANDLE(xen_processor_cx_t);
struct xen_processor_flags {
uint32_t bm_control:1;
uint32_t bm_check:1;
uint32_t has_cst:1;
uint32_t power_setup_done:1;
uint32_t bm_rld_set:1;
};
struct xen_processor_power {
uint32_t count; /* number of C state entries in array below */
struct xen_processor_flags flags; /* global flags of this processor */
XEN_GUEST_HANDLE(xen_processor_cx_t) states; /* supported c states */
};
struct xen_pct_register {
uint8_t descriptor;
uint16_t length;
uint8_t space_id;
uint8_t bit_width;
uint8_t bit_offset;
uint8_t reserved;
uint64_t address;
};
struct xen_processor_px {
uint64_t core_frequency; /* megahertz */
uint64_t power; /* milliWatts */
uint64_t transition_latency; /* microseconds */
uint64_t bus_master_latency; /* microseconds */
uint64_t control; /* control value */
uint64_t status; /* success indicator */
};
typedef struct xen_processor_px xen_processor_px_t;
DEFINE_XEN_GUEST_HANDLE(xen_processor_px_t);
struct xen_psd_package {
uint64_t num_entries;
uint64_t revision;
uint64_t domain;
uint64_t coord_type;
uint64_t num_processors;
};
struct xen_processor_performance {
uint32_t flags; /* flag for Px sub info type */
uint32_t platform_limit; /* Platform limitation on freq usage */
struct xen_pct_register control_register;
struct xen_pct_register status_register;
uint32_t state_count; /* total available performance states */
XEN_GUEST_HANDLE(xen_processor_px_t) states;
struct xen_psd_package domain_info;
uint32_t shared_type; /* coordination type of this processor */
};
typedef struct xen_processor_performance xen_processor_performance_t;
DEFINE_XEN_GUEST_HANDLE(xen_processor_performance_t);
struct xenpf_set_processor_pminfo {
/* IN variables */
uint32_t id; /* ACPI CPU ID */
uint32_t type; /* {XEN_PM_CX, XEN_PM_PX} */
union {
struct xen_processor_power power;/* Cx: _CST/_CSD */
struct xen_processor_performance perf; /* Px: _PPC/_PCT/_PSS/_PSD */
XEN_GUEST_HANDLE(uint32) pdc; /* _PDC */
} u;
};
typedef struct xenpf_set_processor_pminfo xenpf_set_processor_pminfo_t;
DEFINE_XEN_GUEST_HANDLE(xenpf_set_processor_pminfo_t);
#define XENPF_get_cpuinfo 55
struct xenpf_pcpuinfo {
/* IN */
uint32_t xen_cpuid;
/* OUT */
/* The maxium cpu_id that is present */
uint32_t max_present;
#define XEN_PCPU_FLAGS_ONLINE 1
/* Correponding xen_cpuid is not present*/
#define XEN_PCPU_FLAGS_INVALID 2
uint32_t flags;
uint32_t apic_id;
uint32_t acpi_id;
};
typedef struct xenpf_pcpuinfo xenpf_pcpuinfo_t;
DEFINE_XEN_GUEST_HANDLE(xenpf_pcpuinfo_t);
#define XENPF_get_cpu_version 48
struct xenpf_pcpu_version {
/* IN */
uint32_t xen_cpuid;
/* OUT */
/* The maxium cpu_id that is present */
uint32_t max_present;
char vendor_id[12];
uint32_t family;
uint32_t model;
uint32_t stepping;
};
typedef struct xenpf_pcpu_version xenpf_pcpu_version_t;
DEFINE_XEN_GUEST_HANDLE(xenpf_pcpu_version_t);
#define XENPF_cpu_online 56
#define XENPF_cpu_offline 57
struct xenpf_cpu_ol
{
uint32_t cpuid;
};
typedef struct xenpf_cpu_ol xenpf_cpu_ol_t;
DEFINE_XEN_GUEST_HANDLE(xenpf_cpu_ol_t);
#define XENPF_cpu_hotadd 58
struct xenpf_cpu_hotadd
{
uint32_t apic_id;
uint32_t acpi_id;
uint32_t pxm;
};
#define XENPF_mem_hotadd 59
struct xenpf_mem_hotadd
{
uint64_t spfn;
uint64_t epfn;
uint32_t pxm;
uint32_t flags;
};
#define XENPF_core_parking 60
#define XEN_CORE_PARKING_SET 1
#define XEN_CORE_PARKING_GET 2
struct xenpf_core_parking {
/* IN variables */
uint32_t type;
/* IN variables: set cpu nums expected to be idled */
/* OUT variables: get cpu nums actually be idled */
uint32_t idle_nums;
};
typedef struct xenpf_core_parking xenpf_core_parking_t;
DEFINE_XEN_GUEST_HANDLE(xenpf_core_parking_t);
/*
* ` enum neg_errnoval
* ` HYPERVISOR_platform_op(const struct xen_platform_op*);
*/
struct xen_platform_op {
uint32_t cmd;
uint32_t interface_version; /* XENPF_INTERFACE_VERSION */
union {
struct xenpf_settime settime;
struct xenpf_add_memtype add_memtype;
struct xenpf_del_memtype del_memtype;
struct xenpf_read_memtype read_memtype;
struct xenpf_microcode_update microcode;
struct xenpf_platform_quirk platform_quirk;
struct xenpf_efi_runtime_call efi_runtime_call;
struct xenpf_firmware_info firmware_info;
struct xenpf_enter_acpi_sleep enter_acpi_sleep;
struct xenpf_change_freq change_freq;
struct xenpf_getidletime getidletime;
struct xenpf_set_processor_pminfo set_pminfo;
struct xenpf_pcpuinfo pcpu_info;
struct xenpf_pcpu_version pcpu_version;
struct xenpf_cpu_ol cpu_ol;
struct xenpf_cpu_hotadd cpu_add;
struct xenpf_mem_hotadd mem_add;
struct xenpf_core_parking core_parking;
uint8_t pad[128];
} u;
};
typedef struct xen_platform_op xen_platform_op_t;
DEFINE_XEN_GUEST_HANDLE(xen_platform_op_t);
#endif /* __XEN_PUBLIC_PLATFORM_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* sched.h
*
* Scheduler state interactions
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2005, Keir Fraser <keir@xensource.com>
*/
#ifndef __XEN_PUBLIC_SCHED_H__
#define __XEN_PUBLIC_SCHED_H__
#include "event_channel.h"
/*
* `incontents 150 sched Guest Scheduler Operations
*
* The SCHEDOP interface provides mechanisms for a guest to interact
* with the scheduler, including yield, blocking and shutting itself
* down.
*/
/*
* The prototype for this hypercall is:
* ` long HYPERVISOR_sched_op(enum sched_op cmd, void *arg, ...)
*
* @cmd == SCHEDOP_??? (scheduler operation).
* @arg == Operation-specific extra argument(s), as described below.
* ... == Additional Operation-specific extra arguments, described below.
*
* Versions of Xen prior to 3.0.2 provided only the following legacy version
* of this hypercall, supporting only the commands yield, block and shutdown:
* long sched_op(int cmd, unsigned long arg)
* @cmd == SCHEDOP_??? (scheduler operation).
* @arg == 0 (SCHEDOP_yield and SCHEDOP_block)
* == SHUTDOWN_* code (SCHEDOP_shutdown)
*
* This legacy version is available to new guests as:
* ` long HYPERVISOR_sched_op_compat(enum sched_op cmd, unsigned long arg)
*/
/* ` enum sched_op { // SCHEDOP_* => struct sched_* */
/*
* Voluntarily yield the CPU.
* @arg == NULL.
*/
#define SCHEDOP_yield 0
/*
* Block execution of this VCPU until an event is received for processing.
* If called with event upcalls masked, this operation will atomically
* reenable event delivery and check for pending events before blocking the
* VCPU. This avoids a "wakeup waiting" race.
* @arg == NULL.
*/
#define SCHEDOP_block 1
/*
* Halt execution of this domain (all VCPUs) and notify the system controller.
* @arg == pointer to sched_shutdown_t structure.
*
* If the sched_shutdown_t reason is SHUTDOWN_suspend then this
* hypercall takes an additional extra argument which should be the
* MFN of the guest's start_info_t.
*
* In addition, which reason is SHUTDOWN_suspend this hypercall
* returns 1 if suspend was cancelled or the domain was merely
* checkpointed, and 0 if it is resuming in a new domain.
*/
#define SCHEDOP_shutdown 2
/*
* Poll a set of event-channel ports. Return when one or more are pending. An
* optional timeout may be specified.
* @arg == pointer to sched_poll_t structure.
*/
#define SCHEDOP_poll 3
/*
* Declare a shutdown for another domain. The main use of this function is
* in interpreting shutdown requests and reasons for fully-virtualized
* domains. A para-virtualized domain may use SCHEDOP_shutdown directly.
* @arg == pointer to sched_remote_shutdown_t structure.
*/
#define SCHEDOP_remote_shutdown 4
/*
* Latch a shutdown code, so that when the domain later shuts down it
* reports this code to the control tools.
* @arg == sched_shutdown_t, as for SCHEDOP_shutdown.
*/
#define SCHEDOP_shutdown_code 5
/*
* Setup, poke and destroy a domain watchdog timer.
* @arg == pointer to sched_watchdog_t structure.
* With id == 0, setup a domain watchdog timer to cause domain shutdown
* after timeout, returns watchdog id.
* With id != 0 and timeout == 0, destroy domain watchdog timer.
* With id != 0 and timeout != 0, poke watchdog timer and set new timeout.
*/
#define SCHEDOP_watchdog 6
/* ` } */
struct sched_shutdown {
unsigned int reason; /* SHUTDOWN_* => enum sched_shutdown_reason */
};
typedef struct sched_shutdown sched_shutdown_t;
DEFINE_XEN_GUEST_HANDLE(sched_shutdown_t);
struct sched_poll {
XEN_GUEST_HANDLE(evtchn_port_t) ports;
unsigned int nr_ports;
uint64_t timeout;
};
typedef struct sched_poll sched_poll_t;
DEFINE_XEN_GUEST_HANDLE(sched_poll_t);
struct sched_remote_shutdown {
domid_t domain_id; /* Remote domain ID */
unsigned int reason; /* SHUTDOWN_* => enum sched_shutdown_reason */
};
typedef struct sched_remote_shutdown sched_remote_shutdown_t;
DEFINE_XEN_GUEST_HANDLE(sched_remote_shutdown_t);
struct sched_watchdog {
uint32_t id; /* watchdog ID */
uint32_t timeout; /* timeout */
};
typedef struct sched_watchdog sched_watchdog_t;
DEFINE_XEN_GUEST_HANDLE(sched_watchdog_t);
/*
* Reason codes for SCHEDOP_shutdown. These may be interpreted by control
* software to determine the appropriate action. For the most part, Xen does
* not care about the shutdown code.
*/
/* ` enum sched_shutdown_reason { */
#define SHUTDOWN_poweroff 0 /* Domain exited normally. Clean up and kill. */
#define SHUTDOWN_reboot 1 /* Clean up, kill, and then restart. */
#define SHUTDOWN_suspend 2 /* Clean up, save suspend info, kill. */
#define SHUTDOWN_crash 3 /* Tell controller we've crashed. */
#define SHUTDOWN_watchdog 4 /* Restart because watchdog time expired. */
#define SHUTDOWN_MAX 4 /* Maximum valid shutdown reason. */
/* ` } */
#endif /* __XEN_PUBLIC_SCHED_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* sysctl.h
*
* System management operations. For use by node control stack.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2002-2006, K Fraser
*/
#ifndef __XEN_PUBLIC_SYSCTL_H__
#define __XEN_PUBLIC_SYSCTL_H__
#if !defined(__XEN__) && !defined(__XEN_TOOLS__)
#error "sysctl operations are intended for use by node control tools only"
#endif
#include "xen.h"
#include "domctl.h"
#define XEN_SYSCTL_INTERFACE_VERSION 0x0000000A
/*
* Read console content from Xen buffer ring.
*/
/* XEN_SYSCTL_readconsole */
struct xen_sysctl_readconsole {
/* IN: Non-zero -> clear after reading. */
uint8_t clear;
/* IN: Non-zero -> start index specified by @index field. */
uint8_t incremental;
uint8_t pad0, pad1;
/*
* IN: Start index for consuming from ring buffer (if @incremental);
* OUT: End index after consuming from ring buffer.
*/
uint32_t index;
/* IN: Virtual address to write console data. */
XEN_GUEST_HANDLE_64(char) buffer;
/* IN: Size of buffer; OUT: Bytes written to buffer. */
uint32_t count;
};
typedef struct xen_sysctl_readconsole xen_sysctl_readconsole_t;
DEFINE_XEN_GUEST_HANDLE(xen_sysctl_readconsole_t);
/* Get trace buffers machine base address */
/* XEN_SYSCTL_tbuf_op */
struct xen_sysctl_tbuf_op {
/* IN variables */
#define XEN_SYSCTL_TBUFOP_get_info 0
#define XEN_SYSCTL_TBUFOP_set_cpu_mask 1
#define XEN_SYSCTL_TBUFOP_set_evt_mask 2
#define XEN_SYSCTL_TBUFOP_set_size 3
#define XEN_SYSCTL_TBUFOP_enable 4
#define XEN_SYSCTL_TBUFOP_disable 5
uint32_t cmd;
/* IN/OUT variables */
struct xenctl_bitmap cpu_mask;
uint32_t evt_mask;
/* OUT variables */
uint64_aligned_t buffer_mfn;
uint32_t size; /* Also an IN variable! */
};
typedef struct xen_sysctl_tbuf_op xen_sysctl_tbuf_op_t;
DEFINE_XEN_GUEST_HANDLE(xen_sysctl_tbuf_op_t);
/*
* Get physical information about the host machine
*/
/* XEN_SYSCTL_physinfo */
/* (x86) The platform supports HVM guests. */
#define _XEN_SYSCTL_PHYSCAP_hvm 0
#define XEN_SYSCTL_PHYSCAP_hvm (1u<<_XEN_SYSCTL_PHYSCAP_hvm)
/* (x86) The platform supports HVM-guest direct access to I/O devices. */
#define _XEN_SYSCTL_PHYSCAP_hvm_directio 1
#define XEN_SYSCTL_PHYSCAP_hvm_directio (1u<<_XEN_SYSCTL_PHYSCAP_hvm_directio)
struct xen_sysctl_physinfo {
uint32_t threads_per_core;
uint32_t cores_per_socket;
uint32_t nr_cpus; /* # CPUs currently online */
uint32_t max_cpu_id; /* Largest possible CPU ID on this host */
uint32_t nr_nodes; /* # nodes currently online */
uint32_t max_node_id; /* Largest possible node ID on this host */
uint32_t cpu_khz;
uint64_aligned_t total_pages;
uint64_aligned_t free_pages;
uint64_aligned_t scrub_pages;
uint64_aligned_t outstanding_pages;
uint32_t hw_cap[8];
/* XEN_SYSCTL_PHYSCAP_??? */
uint32_t capabilities;
};
typedef struct xen_sysctl_physinfo xen_sysctl_physinfo_t;
DEFINE_XEN_GUEST_HANDLE(xen_sysctl_physinfo_t);
/*
* Get the ID of the current scheduler.
*/
/* XEN_SYSCTL_sched_id */
struct xen_sysctl_sched_id {
/* OUT variable */
uint32_t sched_id;
};
typedef struct xen_sysctl_sched_id xen_sysctl_sched_id_t;
DEFINE_XEN_GUEST_HANDLE(xen_sysctl_sched_id_t);
/* Interface for controlling Xen software performance counters. */
/* XEN_SYSCTL_perfc_op */
/* Sub-operations: */
#define XEN_SYSCTL_PERFCOP_reset 1 /* Reset all counters to zero. */
#define XEN_SYSCTL_PERFCOP_query 2 /* Get perfctr information. */
struct xen_sysctl_perfc_desc {
char name[80]; /* name of perf counter */
uint32_t nr_vals; /* number of values for this counter */
};
typedef struct xen_sysctl_perfc_desc xen_sysctl_perfc_desc_t;
DEFINE_XEN_GUEST_HANDLE(xen_sysctl_perfc_desc_t);
typedef uint32_t xen_sysctl_perfc_val_t;
DEFINE_XEN_GUEST_HANDLE(xen_sysctl_perfc_val_t);
struct xen_sysctl_perfc_op {
/* IN variables. */
uint32_t cmd; /* XEN_SYSCTL_PERFCOP_??? */
/* OUT variables. */
uint32_t nr_counters; /* number of counters description */
uint32_t nr_vals; /* number of values */
/* counter information (or NULL) */
XEN_GUEST_HANDLE_64(xen_sysctl_perfc_desc_t) desc;
/* counter values (or NULL) */
XEN_GUEST_HANDLE_64(xen_sysctl_perfc_val_t) val;
};
typedef struct xen_sysctl_perfc_op xen_sysctl_perfc_op_t;
DEFINE_XEN_GUEST_HANDLE(xen_sysctl_perfc_op_t);
/* XEN_SYSCTL_getdomaininfolist */
struct xen_sysctl_getdomaininfolist {
/* IN variables. */
domid_t first_domain;
uint32_t max_domains;
XEN_GUEST_HANDLE_64(xen_domctl_getdomaininfo_t) buffer;
/* OUT variables. */
uint32_t num_domains;
};
typedef struct xen_sysctl_getdomaininfolist xen_sysctl_getdomaininfolist_t;
DEFINE_XEN_GUEST_HANDLE(xen_sysctl_getdomaininfolist_t);
/* Inject debug keys into Xen. */
/* XEN_SYSCTL_debug_keys */
struct xen_sysctl_debug_keys {
/* IN variables. */
XEN_GUEST_HANDLE_64(char) keys;
uint32_t nr_keys;
};
typedef struct xen_sysctl_debug_keys xen_sysctl_debug_keys_t;
DEFINE_XEN_GUEST_HANDLE(xen_sysctl_debug_keys_t);
/* Get physical CPU information. */
/* XEN_SYSCTL_getcpuinfo */
struct xen_sysctl_cpuinfo {
uint64_aligned_t idletime;
};
typedef struct xen_sysctl_cpuinfo xen_sysctl_cpuinfo_t;
DEFINE_XEN_GUEST_HANDLE(xen_sysctl_cpuinfo_t);
struct xen_sysctl_getcpuinfo {
/* IN variables. */
uint32_t max_cpus;
XEN_GUEST_HANDLE_64(xen_sysctl_cpuinfo_t) info;
/* OUT variables. */
uint32_t nr_cpus;
};
typedef struct xen_sysctl_getcpuinfo xen_sysctl_getcpuinfo_t;
DEFINE_XEN_GUEST_HANDLE(xen_sysctl_getcpuinfo_t);
/* XEN_SYSCTL_availheap */
struct xen_sysctl_availheap {
/* IN variables. */
uint32_t min_bitwidth; /* Smallest address width (zero if don't care). */
uint32_t max_bitwidth; /* Largest address width (zero if don't care). */
int32_t node; /* NUMA node of interest (-1 for all nodes). */
/* OUT variables. */
uint64_aligned_t avail_bytes;/* Bytes available in the specified region. */
};
typedef struct xen_sysctl_availheap xen_sysctl_availheap_t;
DEFINE_XEN_GUEST_HANDLE(xen_sysctl_availheap_t);
/* XEN_SYSCTL_get_pmstat */
struct pm_px_val {
uint64_aligned_t freq; /* Px core frequency */
uint64_aligned_t residency; /* Px residency time */
uint64_aligned_t count; /* Px transition count */
};
typedef struct pm_px_val pm_px_val_t;
DEFINE_XEN_GUEST_HANDLE(pm_px_val_t);
struct pm_px_stat {
uint8_t total; /* total Px states */
uint8_t usable; /* usable Px states */
uint8_t last; /* last Px state */
uint8_t cur; /* current Px state */
XEN_GUEST_HANDLE_64(uint64) trans_pt; /* Px transition table */
XEN_GUEST_HANDLE_64(pm_px_val_t) pt;
};
typedef struct pm_px_stat pm_px_stat_t;
DEFINE_XEN_GUEST_HANDLE(pm_px_stat_t);
struct pm_cx_stat {
uint32_t nr; /* entry nr in triggers & residencies, including C0 */
uint32_t last; /* last Cx state */
uint64_aligned_t idle_time; /* idle time from boot */
XEN_GUEST_HANDLE_64(uint64) triggers; /* Cx trigger counts */
XEN_GUEST_HANDLE_64(uint64) residencies; /* Cx residencies */
uint64_aligned_t pc2;
uint64_aligned_t pc3;
uint64_aligned_t pc6;
uint64_aligned_t pc7;
uint64_aligned_t cc3;
uint64_aligned_t cc6;
uint64_aligned_t cc7;
};
struct xen_sysctl_get_pmstat {
#define PMSTAT_CATEGORY_MASK 0xf0
#define PMSTAT_PX 0x10
#define PMSTAT_CX 0x20
#define PMSTAT_get_max_px (PMSTAT_PX | 0x1)
#define PMSTAT_get_pxstat (PMSTAT_PX | 0x2)
#define PMSTAT_reset_pxstat (PMSTAT_PX | 0x3)
#define PMSTAT_get_max_cx (PMSTAT_CX | 0x1)
#define PMSTAT_get_cxstat (PMSTAT_CX | 0x2)
#define PMSTAT_reset_cxstat (PMSTAT_CX | 0x3)
uint32_t type;
uint32_t cpuid;
union {
struct pm_px_stat getpx;
struct pm_cx_stat getcx;
/* other struct for tx, etc */
} u;
};
typedef struct xen_sysctl_get_pmstat xen_sysctl_get_pmstat_t;
DEFINE_XEN_GUEST_HANDLE(xen_sysctl_get_pmstat_t);
/* XEN_SYSCTL_cpu_hotplug */
struct xen_sysctl_cpu_hotplug {
/* IN variables */
uint32_t cpu; /* Physical cpu. */
#define XEN_SYSCTL_CPU_HOTPLUG_ONLINE 0
#define XEN_SYSCTL_CPU_HOTPLUG_OFFLINE 1
uint32_t op; /* hotplug opcode */
};
typedef struct xen_sysctl_cpu_hotplug xen_sysctl_cpu_hotplug_t;
DEFINE_XEN_GUEST_HANDLE(xen_sysctl_cpu_hotplug_t);
/*
* Get/set xen power management, include
* 1. cpufreq governors and related parameters
*/
/* XEN_SYSCTL_pm_op */
struct xen_userspace {
uint32_t scaling_setspeed;
};
typedef struct xen_userspace xen_userspace_t;
struct xen_ondemand {
uint32_t sampling_rate_max;
uint32_t sampling_rate_min;
uint32_t sampling_rate;
uint32_t up_threshold;
};
typedef struct xen_ondemand xen_ondemand_t;
/*
* cpufreq para name of this structure named
* same as sysfs file name of native linux
*/
#define CPUFREQ_NAME_LEN 16
struct xen_get_cpufreq_para {
/* IN/OUT variable */
uint32_t cpu_num;
uint32_t freq_num;
uint32_t gov_num;
/* for all governors */
/* OUT variable */
XEN_GUEST_HANDLE_64(uint32) affected_cpus;
XEN_GUEST_HANDLE_64(uint32) scaling_available_frequencies;
XEN_GUEST_HANDLE_64(char) scaling_available_governors;
char scaling_driver[CPUFREQ_NAME_LEN];
uint32_t cpuinfo_cur_freq;
uint32_t cpuinfo_max_freq;
uint32_t cpuinfo_min_freq;
uint32_t scaling_cur_freq;
char scaling_governor[CPUFREQ_NAME_LEN];
uint32_t scaling_max_freq;
uint32_t scaling_min_freq;
/* for specific governor */
union {
struct xen_userspace userspace;
struct xen_ondemand ondemand;
} u;
int32_t turbo_enabled;
};
struct xen_set_cpufreq_gov {
char scaling_governor[CPUFREQ_NAME_LEN];
};
struct xen_set_cpufreq_para {
#define SCALING_MAX_FREQ 1
#define SCALING_MIN_FREQ 2
#define SCALING_SETSPEED 3
#define SAMPLING_RATE 4
#define UP_THRESHOLD 5
uint32_t ctrl_type;
uint32_t ctrl_value;
};
struct xen_sysctl_pm_op {
#define PM_PARA_CATEGORY_MASK 0xf0
#define CPUFREQ_PARA 0x10
/* cpufreq command type */
#define GET_CPUFREQ_PARA (CPUFREQ_PARA | 0x01)
#define SET_CPUFREQ_GOV (CPUFREQ_PARA | 0x02)
#define SET_CPUFREQ_PARA (CPUFREQ_PARA | 0x03)
#define GET_CPUFREQ_AVGFREQ (CPUFREQ_PARA | 0x04)
/* set/reset scheduler power saving option */
#define XEN_SYSCTL_pm_op_set_sched_opt_smt 0x21
/* cpuidle max_cstate access command */
#define XEN_SYSCTL_pm_op_get_max_cstate 0x22
#define XEN_SYSCTL_pm_op_set_max_cstate 0x23
/* set scheduler migration cost value */
#define XEN_SYSCTL_pm_op_set_vcpu_migration_delay 0x24
#define XEN_SYSCTL_pm_op_get_vcpu_migration_delay 0x25
/* enable/disable turbo mode when in dbs governor */
#define XEN_SYSCTL_pm_op_enable_turbo 0x26
#define XEN_SYSCTL_pm_op_disable_turbo 0x27
uint32_t cmd;
uint32_t cpuid;
union {
struct xen_get_cpufreq_para get_para;
struct xen_set_cpufreq_gov set_gov;
struct xen_set_cpufreq_para set_para;
uint64_aligned_t get_avgfreq;
uint32_t set_sched_opt_smt;
uint32_t get_max_cstate;
uint32_t set_max_cstate;
uint32_t get_vcpu_migration_delay;
uint32_t set_vcpu_migration_delay;
} u;
};
/* XEN_SYSCTL_page_offline_op */
struct xen_sysctl_page_offline_op {
/* IN: range of page to be offlined */
#define sysctl_page_offline 1
#define sysctl_page_online 2
#define sysctl_query_page_offline 3
uint32_t cmd;
uint32_t start;
uint32_t end;
/* OUT: result of page offline request */
/*
* bit 0~15: result flags
* bit 16~31: owner
*/
XEN_GUEST_HANDLE(uint32) status;
};
#define PG_OFFLINE_STATUS_MASK (0xFFUL)
/* The result is invalid, i.e. HV does not handle it */
#define PG_OFFLINE_INVALID (0x1UL << 0)
#define PG_OFFLINE_OFFLINED (0x1UL << 1)
#define PG_OFFLINE_PENDING (0x1UL << 2)
#define PG_OFFLINE_FAILED (0x1UL << 3)
#define PG_OFFLINE_AGAIN (0x1UL << 4)
#define PG_ONLINE_FAILED PG_OFFLINE_FAILED
#define PG_ONLINE_ONLINED PG_OFFLINE_OFFLINED
#define PG_OFFLINE_STATUS_OFFLINED (0x1UL << 1)
#define PG_OFFLINE_STATUS_ONLINE (0x1UL << 2)
#define PG_OFFLINE_STATUS_OFFLINE_PENDING (0x1UL << 3)
#define PG_OFFLINE_STATUS_BROKEN (0x1UL << 4)
#define PG_OFFLINE_MISC_MASK (0xFFUL << 4)
/* valid when PG_OFFLINE_FAILED or PG_OFFLINE_PENDING */
#define PG_OFFLINE_XENPAGE (0x1UL << 8)
#define PG_OFFLINE_DOM0PAGE (0x1UL << 9)
#define PG_OFFLINE_ANONYMOUS (0x1UL << 10)
#define PG_OFFLINE_NOT_CONV_RAM (0x1UL << 11)
#define PG_OFFLINE_OWNED (0x1UL << 12)
#define PG_OFFLINE_BROKEN (0x1UL << 13)
#define PG_ONLINE_BROKEN PG_OFFLINE_BROKEN
#define PG_OFFLINE_OWNER_SHIFT 16
/* XEN_SYSCTL_lockprof_op */
/* Sub-operations: */
#define XEN_SYSCTL_LOCKPROF_reset 1 /* Reset all profile data to zero. */
#define XEN_SYSCTL_LOCKPROF_query 2 /* Get lock profile information. */
/* Record-type: */
#define LOCKPROF_TYPE_GLOBAL 0 /* global lock, idx meaningless */
#define LOCKPROF_TYPE_PERDOM 1 /* per-domain lock, idx is domid */
#define LOCKPROF_TYPE_N 2 /* number of types */
struct xen_sysctl_lockprof_data {
char name[40]; /* lock name (may include up to 2 %d specifiers) */
int32_t type; /* LOCKPROF_TYPE_??? */
int32_t idx; /* index (e.g. domain id) */
uint64_aligned_t lock_cnt; /* # of locking succeeded */
uint64_aligned_t block_cnt; /* # of wait for lock */
uint64_aligned_t lock_time; /* nsecs lock held */
uint64_aligned_t block_time; /* nsecs waited for lock */
};
typedef struct xen_sysctl_lockprof_data xen_sysctl_lockprof_data_t;
DEFINE_XEN_GUEST_HANDLE(xen_sysctl_lockprof_data_t);
struct xen_sysctl_lockprof_op {
/* IN variables. */
uint32_t cmd; /* XEN_SYSCTL_LOCKPROF_??? */
uint32_t max_elem; /* size of output buffer */
/* OUT variables (query only). */
uint32_t nr_elem; /* number of elements available */
uint64_aligned_t time; /* nsecs of profile measurement */
/* profile information (or NULL) */
XEN_GUEST_HANDLE_64(xen_sysctl_lockprof_data_t) data;
};
typedef struct xen_sysctl_lockprof_op xen_sysctl_lockprof_op_t;
DEFINE_XEN_GUEST_HANDLE(xen_sysctl_lockprof_op_t);
/* XEN_SYSCTL_topologyinfo */
#define INVALID_TOPOLOGY_ID (~0U)
struct xen_sysctl_topologyinfo {
/*
* IN: maximum addressable entry in the caller-provided arrays.
* OUT: largest cpu identifier in the system.
* If OUT is greater than IN then the arrays are truncated!
* If OUT is leass than IN then the array tails are not written by sysctl.
*/
uint32_t max_cpu_index;
/*
* If not NULL, these arrays are filled with core/socket/node identifier
* for each cpu.
* If a cpu has no core/socket/node information (e.g., cpu not present)
* then the sentinel value ~0u is written to each array.
* The number of array elements written by the sysctl is:
* min(@max_cpu_index_IN,@max_cpu_index_OUT)+1
*/
XEN_GUEST_HANDLE_64(uint32) cpu_to_core;
XEN_GUEST_HANDLE_64(uint32) cpu_to_socket;
XEN_GUEST_HANDLE_64(uint32) cpu_to_node;
};
typedef struct xen_sysctl_topologyinfo xen_sysctl_topologyinfo_t;
DEFINE_XEN_GUEST_HANDLE(xen_sysctl_topologyinfo_t);
/* XEN_SYSCTL_numainfo */
#define INVALID_NUMAINFO_ID (~0U)
struct xen_sysctl_numainfo {
/*
* IN: maximum addressable entry in the caller-provided arrays.
* OUT: largest node identifier in the system.
* If OUT is greater than IN then the arrays are truncated!
*/
uint32_t max_node_index;
/* NB. Entries are 0 if node is not present. */
XEN_GUEST_HANDLE_64(uint64) node_to_memsize;
XEN_GUEST_HANDLE_64(uint64) node_to_memfree;
/*
* Array, of size (max_node_index+1)^2, listing memory access distances
* between nodes. If an entry has no node distance information (e.g., node
* not present) then the value ~0u is written.
*
* Note that the array rows must be indexed by multiplying by the minimum
* of the caller-provided max_node_index and the returned value of
* max_node_index. That is, if the largest node index in the system is
* smaller than the caller can handle, a smaller 2-d array is constructed
* within the space provided by the caller. When this occurs, trailing
* space provided by the caller is not modified. If the largest node index
* in the system is larger than the caller can handle, then a 2-d array of
* the maximum size handleable by the caller is constructed.
*/
XEN_GUEST_HANDLE_64(uint32) node_to_node_distance;
};
typedef struct xen_sysctl_numainfo xen_sysctl_numainfo_t;
DEFINE_XEN_GUEST_HANDLE(xen_sysctl_numainfo_t);
/* XEN_SYSCTL_cpupool_op */
#define XEN_SYSCTL_CPUPOOL_OP_CREATE 1 /* C */
#define XEN_SYSCTL_CPUPOOL_OP_DESTROY 2 /* D */
#define XEN_SYSCTL_CPUPOOL_OP_INFO 3 /* I */
#define XEN_SYSCTL_CPUPOOL_OP_ADDCPU 4 /* A */
#define XEN_SYSCTL_CPUPOOL_OP_RMCPU 5 /* R */
#define XEN_SYSCTL_CPUPOOL_OP_MOVEDOMAIN 6 /* M */
#define XEN_SYSCTL_CPUPOOL_OP_FREEINFO 7 /* F */
#define XEN_SYSCTL_CPUPOOL_PAR_ANY 0xFFFFFFFF
struct xen_sysctl_cpupool_op {
uint32_t op; /* IN */
uint32_t cpupool_id; /* IN: CDIARM OUT: CI */
uint32_t sched_id; /* IN: C OUT: I */
uint32_t domid; /* IN: M */
uint32_t cpu; /* IN: AR */
uint32_t n_dom; /* OUT: I */
struct xenctl_bitmap cpumap; /* OUT: IF */
};
typedef struct xen_sysctl_cpupool_op xen_sysctl_cpupool_op_t;
DEFINE_XEN_GUEST_HANDLE(xen_sysctl_cpupool_op_t);
#define ARINC653_MAX_DOMAINS_PER_SCHEDULE 64
/*
* This structure is used to pass a new ARINC653 schedule from a
* privileged domain (ie dom0) to Xen.
*/
struct xen_sysctl_arinc653_schedule {
/* major_frame holds the time for the new schedule's major frame
* in nanoseconds. */
uint64_aligned_t major_frame;
/* num_sched_entries holds how many of the entries in the
* sched_entries[] array are valid. */
uint8_t num_sched_entries;
/* The sched_entries array holds the actual schedule entries. */
struct {
/* dom_handle must match a domain's UUID */
xen_domain_handle_t dom_handle;
/* If a domain has multiple VCPUs, vcpu_id specifies which one
* this schedule entry applies to. It should be set to 0 if
* there is only one VCPU for the domain. */
unsigned int vcpu_id;
/* runtime specifies the amount of time that should be allocated
* to this VCPU per major frame. It is specified in nanoseconds */
uint64_aligned_t runtime;
} sched_entries[ARINC653_MAX_DOMAINS_PER_SCHEDULE];
};
typedef struct xen_sysctl_arinc653_schedule xen_sysctl_arinc653_schedule_t;
DEFINE_XEN_GUEST_HANDLE(xen_sysctl_arinc653_schedule_t);
struct xen_sysctl_credit_schedule {
/* Length of timeslice in milliseconds */
#define XEN_SYSCTL_CSCHED_TSLICE_MAX 1000
#define XEN_SYSCTL_CSCHED_TSLICE_MIN 1
unsigned tslice_ms;
/* Rate limit (minimum timeslice) in microseconds */
#define XEN_SYSCTL_SCHED_RATELIMIT_MAX 500000
#define XEN_SYSCTL_SCHED_RATELIMIT_MIN 100
unsigned ratelimit_us;
};
typedef struct xen_sysctl_credit_schedule xen_sysctl_credit_schedule_t;
DEFINE_XEN_GUEST_HANDLE(xen_sysctl_credit_schedule_t);
/* XEN_SYSCTL_scheduler_op */
/* Set or get info? */
#define XEN_SYSCTL_SCHEDOP_putinfo 0
#define XEN_SYSCTL_SCHEDOP_getinfo 1
struct xen_sysctl_scheduler_op {
uint32_t cpupool_id; /* Cpupool whose scheduler is to be targetted. */
uint32_t sched_id; /* XEN_SCHEDULER_* (domctl.h) */
uint32_t cmd; /* XEN_SYSCTL_SCHEDOP_* */
union {
struct xen_sysctl_sched_arinc653 {
XEN_GUEST_HANDLE_64(xen_sysctl_arinc653_schedule_t) schedule;
} sched_arinc653;
struct xen_sysctl_credit_schedule sched_credit;
} u;
};
typedef struct xen_sysctl_scheduler_op xen_sysctl_scheduler_op_t;
DEFINE_XEN_GUEST_HANDLE(xen_sysctl_scheduler_op_t);
/* XEN_SYSCTL_coverage_op */
/*
* Get total size of information, to help allocate
* the buffer. The pointer points to a 32 bit value.
*/
#define XEN_SYSCTL_COVERAGE_get_total_size 0
/*
* Read coverage information in a single run
* You must use a tool to split them.
*/
#define XEN_SYSCTL_COVERAGE_read 1
/*
* Reset all the coverage counters to 0
* No parameters.
*/
#define XEN_SYSCTL_COVERAGE_reset 2
/*
* Like XEN_SYSCTL_COVERAGE_read but reset also
* counters to 0 in a single call.
*/
#define XEN_SYSCTL_COVERAGE_read_and_reset 3
struct xen_sysctl_coverage_op {
uint32_t cmd; /* XEN_SYSCTL_COVERAGE_* */
union {
uint32_t total_size; /* OUT */
XEN_GUEST_HANDLE_64(uint8) raw_info; /* OUT */
} u;
};
typedef struct xen_sysctl_coverage_op xen_sysctl_coverage_op_t;
DEFINE_XEN_GUEST_HANDLE(xen_sysctl_coverage_op_t);
struct xen_sysctl {
uint32_t cmd;
#define XEN_SYSCTL_readconsole 1
#define XEN_SYSCTL_tbuf_op 2
#define XEN_SYSCTL_physinfo 3
#define XEN_SYSCTL_sched_id 4
#define XEN_SYSCTL_perfc_op 5
#define XEN_SYSCTL_getdomaininfolist 6
#define XEN_SYSCTL_debug_keys 7
#define XEN_SYSCTL_getcpuinfo 8
#define XEN_SYSCTL_availheap 9
#define XEN_SYSCTL_get_pmstat 10
#define XEN_SYSCTL_cpu_hotplug 11
#define XEN_SYSCTL_pm_op 12
#define XEN_SYSCTL_page_offline_op 14
#define XEN_SYSCTL_lockprof_op 15
#define XEN_SYSCTL_topologyinfo 16
#define XEN_SYSCTL_numainfo 17
#define XEN_SYSCTL_cpupool_op 18
#define XEN_SYSCTL_scheduler_op 19
#define XEN_SYSCTL_coverage_op 20
uint32_t interface_version; /* XEN_SYSCTL_INTERFACE_VERSION */
union {
struct xen_sysctl_readconsole readconsole;
struct xen_sysctl_tbuf_op tbuf_op;
struct xen_sysctl_physinfo physinfo;
struct xen_sysctl_topologyinfo topologyinfo;
struct xen_sysctl_numainfo numainfo;
struct xen_sysctl_sched_id sched_id;
struct xen_sysctl_perfc_op perfc_op;
struct xen_sysctl_getdomaininfolist getdomaininfolist;
struct xen_sysctl_debug_keys debug_keys;
struct xen_sysctl_getcpuinfo getcpuinfo;
struct xen_sysctl_availheap availheap;
struct xen_sysctl_get_pmstat get_pmstat;
struct xen_sysctl_cpu_hotplug cpu_hotplug;
struct xen_sysctl_pm_op pm_op;
struct xen_sysctl_page_offline_op page_offline;
struct xen_sysctl_lockprof_op lockprof_op;
struct xen_sysctl_cpupool_op cpupool_op;
struct xen_sysctl_scheduler_op scheduler_op;
struct xen_sysctl_coverage_op coverage_op;
uint8_t pad[128];
} u;
};
typedef struct xen_sysctl xen_sysctl_t;
DEFINE_XEN_GUEST_HANDLE(xen_sysctl_t);
#endif /* __XEN_PUBLIC_SYSCTL_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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sys/src/9/xen/xen-public/tmem.h Normal file
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/******************************************************************************
* tmem.h
*
* Guest OS interface to Xen Transcendent Memory.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2004, K A Fraser
*/
#ifndef __XEN_PUBLIC_TMEM_H__
#define __XEN_PUBLIC_TMEM_H__
#include "xen.h"
/* version of ABI */
#define TMEM_SPEC_VERSION 1
/* Commands to HYPERVISOR_tmem_op() */
#define TMEM_CONTROL 0
#define TMEM_NEW_POOL 1
#define TMEM_DESTROY_POOL 2
#define TMEM_NEW_PAGE 3
#define TMEM_PUT_PAGE 4
#define TMEM_GET_PAGE 5
#define TMEM_FLUSH_PAGE 6
#define TMEM_FLUSH_OBJECT 7
#define TMEM_READ 8
#define TMEM_WRITE 9
#define TMEM_XCHG 10
/* Privileged commands to HYPERVISOR_tmem_op() */
#define TMEM_AUTH 101
#define TMEM_RESTORE_NEW 102
/* Subops for HYPERVISOR_tmem_op(TMEM_CONTROL) */
#define TMEMC_THAW 0
#define TMEMC_FREEZE 1
#define TMEMC_FLUSH 2
#define TMEMC_DESTROY 3
#define TMEMC_LIST 4
#define TMEMC_SET_WEIGHT 5
#define TMEMC_SET_CAP 6
#define TMEMC_SET_COMPRESS 7
#define TMEMC_QUERY_FREEABLE_MB 8
#define TMEMC_SAVE_BEGIN 10
#define TMEMC_SAVE_GET_VERSION 11
#define TMEMC_SAVE_GET_MAXPOOLS 12
#define TMEMC_SAVE_GET_CLIENT_WEIGHT 13
#define TMEMC_SAVE_GET_CLIENT_CAP 14
#define TMEMC_SAVE_GET_CLIENT_FLAGS 15
#define TMEMC_SAVE_GET_POOL_FLAGS 16
#define TMEMC_SAVE_GET_POOL_NPAGES 17
#define TMEMC_SAVE_GET_POOL_UUID 18
#define TMEMC_SAVE_GET_NEXT_PAGE 19
#define TMEMC_SAVE_GET_NEXT_INV 20
#define TMEMC_SAVE_END 21
#define TMEMC_RESTORE_BEGIN 30
#define TMEMC_RESTORE_PUT_PAGE 32
#define TMEMC_RESTORE_FLUSH_PAGE 33
/* Bits for HYPERVISOR_tmem_op(TMEM_NEW_POOL) */
#define TMEM_POOL_PERSIST 1
#define TMEM_POOL_SHARED 2
#define TMEM_POOL_PRECOMPRESSED 4
#define TMEM_POOL_PAGESIZE_SHIFT 4
#define TMEM_POOL_PAGESIZE_MASK 0xf
#define TMEM_POOL_VERSION_SHIFT 24
#define TMEM_POOL_VERSION_MASK 0xff
#define TMEM_POOL_RESERVED_BITS 0x00ffff00
/* Bits for client flags (save/restore) */
#define TMEM_CLIENT_COMPRESS 1
#define TMEM_CLIENT_FROZEN 2
/* Special errno values */
#define EFROZEN 1000
#define EEMPTY 1001
#ifndef __ASSEMBLY__
typedef xen_pfn_t tmem_cli_mfn_t;
typedef XEN_GUEST_HANDLE(char) tmem_cli_va_t;
struct tmem_op {
uint32_t cmd;
int32_t pool_id;
union {
struct {
uint64_t uuid[2];
uint32_t flags;
uint32_t arg1;
} creat; /* for cmd == TMEM_NEW_POOL, TMEM_AUTH, TMEM_RESTORE_NEW */
struct {
uint32_t subop;
uint32_t cli_id;
uint32_t arg1;
uint32_t arg2;
uint64_t oid[3];
tmem_cli_va_t buf;
} ctrl; /* for cmd == TMEM_CONTROL */
struct {
uint64_t oid[3];
uint32_t index;
uint32_t tmem_offset;
uint32_t pfn_offset;
uint32_t len;
tmem_cli_mfn_t cmfn; /* client machine page frame */
} gen; /* for all other cmd ("generic") */
} u;
};
typedef struct tmem_op tmem_op_t;
DEFINE_XEN_GUEST_HANDLE(tmem_op_t);
struct tmem_handle {
uint32_t pool_id;
uint32_t index;
uint64_t oid[3];
};
#endif
#endif /* __XEN_PUBLIC_TMEM_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* include/public/trace.h
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Mark Williamson, (C) 2004 Intel Research Cambridge
* Copyright (C) 2005 Bin Ren
*/
#ifndef __XEN_PUBLIC_TRACE_H__
#define __XEN_PUBLIC_TRACE_H__
#define TRACE_EXTRA_MAX 7
#define TRACE_EXTRA_SHIFT 28
/* Trace classes */
#define TRC_CLS_SHIFT 16
#define TRC_GEN 0x0001f000 /* General trace */
#define TRC_SCHED 0x0002f000 /* Xen Scheduler trace */
#define TRC_DOM0OP 0x0004f000 /* Xen DOM0 operation trace */
#define TRC_HVM 0x0008f000 /* Xen HVM trace */
#define TRC_MEM 0x0010f000 /* Xen memory trace */
#define TRC_PV 0x0020f000 /* Xen PV traces */
#define TRC_SHADOW 0x0040f000 /* Xen shadow tracing */
#define TRC_HW 0x0080f000 /* Xen hardware-related traces */
#define TRC_GUEST 0x0800f000 /* Guest-generated traces */
#define TRC_ALL 0x0ffff000
#define TRC_HD_TO_EVENT(x) ((x)&0x0fffffff)
#define TRC_HD_CYCLE_FLAG (1UL<<31)
#define TRC_HD_INCLUDES_CYCLE_COUNT(x) ( !!( (x) & TRC_HD_CYCLE_FLAG ) )
#define TRC_HD_EXTRA(x) (((x)>>TRACE_EXTRA_SHIFT)&TRACE_EXTRA_MAX)
/* Trace subclasses */
#define TRC_SUBCLS_SHIFT 12
/* trace subclasses for SVM */
#define TRC_HVM_ENTRYEXIT 0x00081000 /* VMENTRY and #VMEXIT */
#define TRC_HVM_HANDLER 0x00082000 /* various HVM handlers */
#define TRC_SCHED_MIN 0x00021000 /* Just runstate changes */
#define TRC_SCHED_CLASS 0x00022000 /* Scheduler-specific */
#define TRC_SCHED_VERBOSE 0x00028000 /* More inclusive scheduling */
/*
* The highest 3 bits of the last 12 bits of TRC_SCHED_CLASS above are
* reserved for encoding what scheduler produced the information. The
* actual event is encoded in the last 9 bits.
*
* This means we have 8 scheduling IDs available (which means at most 8
* schedulers generating events) and, in each scheduler, up to 512
* different events.
*/
#define TRC_SCHED_ID_BITS 3
#define TRC_SCHED_ID_SHIFT (TRC_SUBCLS_SHIFT - TRC_SCHED_ID_BITS)
#define TRC_SCHED_ID_MASK (((1UL<<TRC_SCHED_ID_BITS) - 1) << TRC_SCHED_ID_SHIFT)
#define TRC_SCHED_EVT_MASK (~(TRC_SCHED_ID_MASK))
/* Per-scheduler IDs, to identify scheduler specific events */
#define TRC_SCHED_CSCHED 0
#define TRC_SCHED_CSCHED2 1
#define TRC_SCHED_SEDF 2
#define TRC_SCHED_ARINC653 3
/* Per-scheduler tracing */
#define TRC_SCHED_CLASS_EVT(_c, _e) \
( ( TRC_SCHED_CLASS | \
((TRC_SCHED_##_c << TRC_SCHED_ID_SHIFT) & TRC_SCHED_ID_MASK) ) + \
(_e & TRC_SCHED_EVT_MASK) )
/* Trace classes for Hardware */
#define TRC_HW_PM 0x00801000 /* Power management traces */
#define TRC_HW_IRQ 0x00802000 /* Traces relating to the handling of IRQs */
/* Trace events per class */
#define TRC_LOST_RECORDS (TRC_GEN + 1)
#define TRC_TRACE_WRAP_BUFFER (TRC_GEN + 2)
#define TRC_TRACE_CPU_CHANGE (TRC_GEN + 3)
#define TRC_SCHED_RUNSTATE_CHANGE (TRC_SCHED_MIN + 1)
#define TRC_SCHED_CONTINUE_RUNNING (TRC_SCHED_MIN + 2)
#define TRC_SCHED_DOM_ADD (TRC_SCHED_VERBOSE + 1)
#define TRC_SCHED_DOM_REM (TRC_SCHED_VERBOSE + 2)
#define TRC_SCHED_SLEEP (TRC_SCHED_VERBOSE + 3)
#define TRC_SCHED_WAKE (TRC_SCHED_VERBOSE + 4)
#define TRC_SCHED_YIELD (TRC_SCHED_VERBOSE + 5)
#define TRC_SCHED_BLOCK (TRC_SCHED_VERBOSE + 6)
#define TRC_SCHED_SHUTDOWN (TRC_SCHED_VERBOSE + 7)
#define TRC_SCHED_CTL (TRC_SCHED_VERBOSE + 8)
#define TRC_SCHED_ADJDOM (TRC_SCHED_VERBOSE + 9)
#define TRC_SCHED_SWITCH (TRC_SCHED_VERBOSE + 10)
#define TRC_SCHED_S_TIMER_FN (TRC_SCHED_VERBOSE + 11)
#define TRC_SCHED_T_TIMER_FN (TRC_SCHED_VERBOSE + 12)
#define TRC_SCHED_DOM_TIMER_FN (TRC_SCHED_VERBOSE + 13)
#define TRC_SCHED_SWITCH_INFPREV (TRC_SCHED_VERBOSE + 14)
#define TRC_SCHED_SWITCH_INFNEXT (TRC_SCHED_VERBOSE + 15)
#define TRC_SCHED_SHUTDOWN_CODE (TRC_SCHED_VERBOSE + 16)
#define TRC_MEM_PAGE_GRANT_MAP (TRC_MEM + 1)
#define TRC_MEM_PAGE_GRANT_UNMAP (TRC_MEM + 2)
#define TRC_MEM_PAGE_GRANT_TRANSFER (TRC_MEM + 3)
#define TRC_MEM_SET_P2M_ENTRY (TRC_MEM + 4)
#define TRC_MEM_DECREASE_RESERVATION (TRC_MEM + 5)
#define TRC_MEM_POD_POPULATE (TRC_MEM + 16)
#define TRC_MEM_POD_ZERO_RECLAIM (TRC_MEM + 17)
#define TRC_MEM_POD_SUPERPAGE_SPLINTER (TRC_MEM + 18)
#define TRC_PV_ENTRY 0x00201000 /* Hypervisor entry points for PV guests. */
#define TRC_PV_SUBCALL 0x00202000 /* Sub-call in a multicall hypercall */
#define TRC_PV_HYPERCALL (TRC_PV_ENTRY + 1)
#define TRC_PV_TRAP (TRC_PV_ENTRY + 3)
#define TRC_PV_PAGE_FAULT (TRC_PV_ENTRY + 4)
#define TRC_PV_FORCED_INVALID_OP (TRC_PV_ENTRY + 5)
#define TRC_PV_EMULATE_PRIVOP (TRC_PV_ENTRY + 6)
#define TRC_PV_EMULATE_4GB (TRC_PV_ENTRY + 7)
#define TRC_PV_MATH_STATE_RESTORE (TRC_PV_ENTRY + 8)
#define TRC_PV_PAGING_FIXUP (TRC_PV_ENTRY + 9)
#define TRC_PV_GDT_LDT_MAPPING_FAULT (TRC_PV_ENTRY + 10)
#define TRC_PV_PTWR_EMULATION (TRC_PV_ENTRY + 11)
#define TRC_PV_PTWR_EMULATION_PAE (TRC_PV_ENTRY + 12)
#define TRC_PV_HYPERCALL_V2 (TRC_PV_ENTRY + 13)
#define TRC_PV_HYPERCALL_SUBCALL (TRC_PV_SUBCALL + 14)
/*
* TRC_PV_HYPERCALL_V2 format
*
* Only some of the hypercall argument are recorded. Bit fields A0 to
* A5 in the first extra word are set if the argument is present and
* the arguments themselves are packed sequentially in the following
* words.
*
* The TRC_64_FLAG bit is not set for these events (even if there are
* 64-bit arguments in the record).
*
* Word
* 0 bit 31 30|29 28|27 26|25 24|23 22|21 20|19 ... 0
* A5 |A4 |A3 |A2 |A1 |A0 |Hypercall op
* 1 First 32 bit (or low word of first 64 bit) arg in record
* 2 Second 32 bit (or high word of first 64 bit) arg in record
* ...
*
* A0-A5 bitfield values:
*
* 00b Argument not present
* 01b 32-bit argument present
* 10b 64-bit argument present
* 11b Reserved
*/
#define TRC_PV_HYPERCALL_V2_ARG_32(i) (0x1 << (20 + 2*(i)))
#define TRC_PV_HYPERCALL_V2_ARG_64(i) (0x2 << (20 + 2*(i)))
#define TRC_PV_HYPERCALL_V2_ARG_MASK (0xfff00000)
#define TRC_SHADOW_NOT_SHADOW (TRC_SHADOW + 1)
#define TRC_SHADOW_FAST_PROPAGATE (TRC_SHADOW + 2)
#define TRC_SHADOW_FAST_MMIO (TRC_SHADOW + 3)
#define TRC_SHADOW_FALSE_FAST_PATH (TRC_SHADOW + 4)
#define TRC_SHADOW_MMIO (TRC_SHADOW + 5)
#define TRC_SHADOW_FIXUP (TRC_SHADOW + 6)
#define TRC_SHADOW_DOMF_DYING (TRC_SHADOW + 7)
#define TRC_SHADOW_EMULATE (TRC_SHADOW + 8)
#define TRC_SHADOW_EMULATE_UNSHADOW_USER (TRC_SHADOW + 9)
#define TRC_SHADOW_EMULATE_UNSHADOW_EVTINJ (TRC_SHADOW + 10)
#define TRC_SHADOW_EMULATE_UNSHADOW_UNHANDLED (TRC_SHADOW + 11)
#define TRC_SHADOW_WRMAP_BF (TRC_SHADOW + 12)
#define TRC_SHADOW_PREALLOC_UNPIN (TRC_SHADOW + 13)
#define TRC_SHADOW_RESYNC_FULL (TRC_SHADOW + 14)
#define TRC_SHADOW_RESYNC_ONLY (TRC_SHADOW + 15)
/* trace events per subclass */
#define TRC_HVM_NESTEDFLAG (0x400)
#define TRC_HVM_VMENTRY (TRC_HVM_ENTRYEXIT + 0x01)
#define TRC_HVM_VMEXIT (TRC_HVM_ENTRYEXIT + 0x02)
#define TRC_HVM_VMEXIT64 (TRC_HVM_ENTRYEXIT + TRC_64_FLAG + 0x02)
#define TRC_HVM_PF_XEN (TRC_HVM_HANDLER + 0x01)
#define TRC_HVM_PF_XEN64 (TRC_HVM_HANDLER + TRC_64_FLAG + 0x01)
#define TRC_HVM_PF_INJECT (TRC_HVM_HANDLER + 0x02)
#define TRC_HVM_PF_INJECT64 (TRC_HVM_HANDLER + TRC_64_FLAG + 0x02)
#define TRC_HVM_INJ_EXC (TRC_HVM_HANDLER + 0x03)
#define TRC_HVM_INJ_VIRQ (TRC_HVM_HANDLER + 0x04)
#define TRC_HVM_REINJ_VIRQ (TRC_HVM_HANDLER + 0x05)
#define TRC_HVM_IO_READ (TRC_HVM_HANDLER + 0x06)
#define TRC_HVM_IO_WRITE (TRC_HVM_HANDLER + 0x07)
#define TRC_HVM_CR_READ (TRC_HVM_HANDLER + 0x08)
#define TRC_HVM_CR_READ64 (TRC_HVM_HANDLER + TRC_64_FLAG + 0x08)
#define TRC_HVM_CR_WRITE (TRC_HVM_HANDLER + 0x09)
#define TRC_HVM_CR_WRITE64 (TRC_HVM_HANDLER + TRC_64_FLAG + 0x09)
#define TRC_HVM_DR_READ (TRC_HVM_HANDLER + 0x0A)
#define TRC_HVM_DR_WRITE (TRC_HVM_HANDLER + 0x0B)
#define TRC_HVM_MSR_READ (TRC_HVM_HANDLER + 0x0C)
#define TRC_HVM_MSR_WRITE (TRC_HVM_HANDLER + 0x0D)
#define TRC_HVM_CPUID (TRC_HVM_HANDLER + 0x0E)
#define TRC_HVM_INTR (TRC_HVM_HANDLER + 0x0F)
#define TRC_HVM_NMI (TRC_HVM_HANDLER + 0x10)
#define TRC_HVM_SMI (TRC_HVM_HANDLER + 0x11)
#define TRC_HVM_VMMCALL (TRC_HVM_HANDLER + 0x12)
#define TRC_HVM_HLT (TRC_HVM_HANDLER + 0x13)
#define TRC_HVM_INVLPG (TRC_HVM_HANDLER + 0x14)
#define TRC_HVM_INVLPG64 (TRC_HVM_HANDLER + TRC_64_FLAG + 0x14)
#define TRC_HVM_MCE (TRC_HVM_HANDLER + 0x15)
#define TRC_HVM_IOPORT_READ (TRC_HVM_HANDLER + 0x16)
#define TRC_HVM_IOMEM_READ (TRC_HVM_HANDLER + 0x17)
#define TRC_HVM_CLTS (TRC_HVM_HANDLER + 0x18)
#define TRC_HVM_LMSW (TRC_HVM_HANDLER + 0x19)
#define TRC_HVM_LMSW64 (TRC_HVM_HANDLER + TRC_64_FLAG + 0x19)
#define TRC_HVM_RDTSC (TRC_HVM_HANDLER + 0x1a)
#define TRC_HVM_INTR_WINDOW (TRC_HVM_HANDLER + 0x20)
#define TRC_HVM_NPF (TRC_HVM_HANDLER + 0x21)
#define TRC_HVM_REALMODE_EMULATE (TRC_HVM_HANDLER + 0x22)
#define TRC_HVM_TRAP (TRC_HVM_HANDLER + 0x23)
#define TRC_HVM_TRAP_DEBUG (TRC_HVM_HANDLER + 0x24)
#define TRC_HVM_VLAPIC (TRC_HVM_HANDLER + 0x25)
#define TRC_HVM_IOPORT_WRITE (TRC_HVM_HANDLER + 0x216)
#define TRC_HVM_IOMEM_WRITE (TRC_HVM_HANDLER + 0x217)
/* trace events for per class */
#define TRC_PM_FREQ_CHANGE (TRC_HW_PM + 0x01)
#define TRC_PM_IDLE_ENTRY (TRC_HW_PM + 0x02)
#define TRC_PM_IDLE_EXIT (TRC_HW_PM + 0x03)
/* Trace events for IRQs */
#define TRC_HW_IRQ_MOVE_CLEANUP_DELAY (TRC_HW_IRQ + 0x1)
#define TRC_HW_IRQ_MOVE_CLEANUP (TRC_HW_IRQ + 0x2)
#define TRC_HW_IRQ_BIND_VECTOR (TRC_HW_IRQ + 0x3)
#define TRC_HW_IRQ_CLEAR_VECTOR (TRC_HW_IRQ + 0x4)
#define TRC_HW_IRQ_MOVE_FINISH (TRC_HW_IRQ + 0x5)
#define TRC_HW_IRQ_ASSIGN_VECTOR (TRC_HW_IRQ + 0x6)
#define TRC_HW_IRQ_UNMAPPED_VECTOR (TRC_HW_IRQ + 0x7)
#define TRC_HW_IRQ_HANDLED (TRC_HW_IRQ + 0x8)
/*
* Event Flags
*
* Some events (e.g, TRC_PV_TRAP and TRC_HVM_IOMEM_READ) have multiple
* record formats. These event flags distinguish between the
* different formats.
*/
#define TRC_64_FLAG 0x100 /* Addresses are 64 bits (instead of 32 bits) */
/* This structure represents a single trace buffer record. */
struct t_rec {
uint32_t event:28;
uint32_t extra_u32:3; /* # entries in trailing extra_u32[] array */
uint32_t cycles_included:1; /* u.cycles or u.no_cycles? */
union {
struct {
uint32_t cycles_lo, cycles_hi; /* cycle counter timestamp */
uint32_t extra_u32[7]; /* event data items */
} cycles;
struct {
uint32_t extra_u32[7]; /* event data items */
} nocycles;
} u;
};
/*
* This structure contains the metadata for a single trace buffer. The head
* field, indexes into an array of struct t_rec's.
*/
struct t_buf {
/* Assume the data buffer size is X. X is generally not a power of 2.
* CONS and PROD are incremented modulo (2*X):
* 0 <= cons < 2*X
* 0 <= prod < 2*X
* This is done because addition modulo X breaks at 2^32 when X is not a
* power of 2:
* (((2^32 - 1) % X) + 1) % X != (2^32) % X
*/
uint32_t cons; /* Offset of next item to be consumed by control tools. */
uint32_t prod; /* Offset of next item to be produced by Xen. */
/* Records follow immediately after the meta-data header. */
};
/* Structure used to pass MFNs to the trace buffers back to trace consumers.
* Offset is an offset into the mapped structure where the mfn list will be held.
* MFNs will be at ((unsigned long *)(t_info))+(t_info->cpu_offset[cpu]).
*/
struct t_info {
uint16_t tbuf_size; /* Size in pages of each trace buffer */
uint16_t mfn_offset[]; /* Offset within t_info structure of the page list per cpu */
/* MFN lists immediately after the header */
};
#endif /* __XEN_PUBLIC_TRACE_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* vcpu.h
*
* VCPU initialisation, query, and hotplug.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2005, Keir Fraser <keir@xensource.com>
*/
#ifndef __XEN_PUBLIC_VCPU_H__
#define __XEN_PUBLIC_VCPU_H__
#include "xen.h"
/*
* Prototype for this hypercall is:
* int vcpu_op(int cmd, int vcpuid, void *extra_args)
* @cmd == VCPUOP_??? (VCPU operation).
* @vcpuid == VCPU to operate on.
* @extra_args == Operation-specific extra arguments (NULL if none).
*/
/*
* Initialise a VCPU. Each VCPU can be initialised only once. A
* newly-initialised VCPU will not run until it is brought up by VCPUOP_up.
*
* @extra_arg == pointer to vcpu_guest_context structure containing initial
* state for the VCPU.
*/
#define VCPUOP_initialise 0
/*
* Bring up a VCPU. This makes the VCPU runnable. This operation will fail
* if the VCPU has not been initialised (VCPUOP_initialise).
*/
#define VCPUOP_up 1
/*
* Bring down a VCPU (i.e., make it non-runnable).
* There are a few caveats that callers should observe:
* 1. This operation may return, and VCPU_is_up may return false, before the
* VCPU stops running (i.e., the command is asynchronous). It is a good
* idea to ensure that the VCPU has entered a non-critical loop before
* bringing it down. Alternatively, this operation is guaranteed
* synchronous if invoked by the VCPU itself.
* 2. After a VCPU is initialised, there is currently no way to drop all its
* references to domain memory. Even a VCPU that is down still holds
* memory references via its pagetable base pointer and GDT. It is good
* practise to move a VCPU onto an 'idle' or default page table, LDT and
* GDT before bringing it down.
*/
#define VCPUOP_down 2
/* Returns 1 if the given VCPU is up. */
#define VCPUOP_is_up 3
/*
* Return information about the state and running time of a VCPU.
* @extra_arg == pointer to vcpu_runstate_info structure.
*/
#define VCPUOP_get_runstate_info 4
struct vcpu_runstate_info {
/* VCPU's current state (RUNSTATE_*). */
int state;
/* When was current state entered (system time, ns)? */
uint64_t state_entry_time;
/*
* Time spent in each RUNSTATE_* (ns). The sum of these times is
* guaranteed not to drift from system time.
*/
uint64_t time[4];
};
typedef struct vcpu_runstate_info vcpu_runstate_info_t;
DEFINE_XEN_GUEST_HANDLE(vcpu_runstate_info_t);
/* VCPU is currently running on a physical CPU. */
#define RUNSTATE_running 0
/* VCPU is runnable, but not currently scheduled on any physical CPU. */
#define RUNSTATE_runnable 1
/* VCPU is blocked (a.k.a. idle). It is therefore not runnable. */
#define RUNSTATE_blocked 2
/*
* VCPU is not runnable, but it is not blocked.
* This is a 'catch all' state for things like hotplug and pauses by the
* system administrator (or for critical sections in the hypervisor).
* RUNSTATE_blocked dominates this state (it is the preferred state).
*/
#define RUNSTATE_offline 3
/*
* Register a shared memory area from which the guest may obtain its own
* runstate information without needing to execute a hypercall.
* Notes:
* 1. The registered address may be virtual or physical or guest handle,
* depending on the platform. Virtual address or guest handle should be
* registered on x86 systems.
* 2. Only one shared area may be registered per VCPU. The shared area is
* updated by the hypervisor each time the VCPU is scheduled. Thus
* runstate.state will always be RUNSTATE_running and
* runstate.state_entry_time will indicate the system time at which the
* VCPU was last scheduled to run.
* @extra_arg == pointer to vcpu_register_runstate_memory_area structure.
*/
#define VCPUOP_register_runstate_memory_area 5
struct vcpu_register_runstate_memory_area {
union {
XEN_GUEST_HANDLE(vcpu_runstate_info_t) h;
struct vcpu_runstate_info *v;
uint64_t p;
} addr;
};
typedef struct vcpu_register_runstate_memory_area vcpu_register_runstate_memory_area_t;
DEFINE_XEN_GUEST_HANDLE(vcpu_register_runstate_memory_area_t);
/*
* Set or stop a VCPU's periodic timer. Every VCPU has one periodic timer
* which can be set via these commands. Periods smaller than one millisecond
* may not be supported.
*/
#define VCPUOP_set_periodic_timer 6 /* arg == vcpu_set_periodic_timer_t */
#define VCPUOP_stop_periodic_timer 7 /* arg == NULL */
struct vcpu_set_periodic_timer {
uint64_t period_ns;
};
typedef struct vcpu_set_periodic_timer vcpu_set_periodic_timer_t;
DEFINE_XEN_GUEST_HANDLE(vcpu_set_periodic_timer_t);
/*
* Set or stop a VCPU's single-shot timer. Every VCPU has one single-shot
* timer which can be set via these commands.
*/
#define VCPUOP_set_singleshot_timer 8 /* arg == vcpu_set_singleshot_timer_t */
#define VCPUOP_stop_singleshot_timer 9 /* arg == NULL */
struct vcpu_set_singleshot_timer {
uint64_t timeout_abs_ns; /* Absolute system time value in nanoseconds. */
uint32_t flags; /* VCPU_SSHOTTMR_??? */
};
typedef struct vcpu_set_singleshot_timer vcpu_set_singleshot_timer_t;
DEFINE_XEN_GUEST_HANDLE(vcpu_set_singleshot_timer_t);
/* Flags to VCPUOP_set_singleshot_timer. */
/* Require the timeout to be in the future (return -ETIME if it's passed). */
#define _VCPU_SSHOTTMR_future (0)
#define VCPU_SSHOTTMR_future (1U << _VCPU_SSHOTTMR_future)
/*
* Register a memory location in the guest address space for the
* vcpu_info structure. This allows the guest to place the vcpu_info
* structure in a convenient place, such as in a per-cpu data area.
* The pointer need not be page aligned, but the structure must not
* cross a page boundary.
*
* This may be called only once per vcpu.
*/
#define VCPUOP_register_vcpu_info 10 /* arg == vcpu_register_vcpu_info_t */
struct vcpu_register_vcpu_info {
uint64_t mfn; /* mfn of page to place vcpu_info */
uint32_t offset; /* offset within page */
uint32_t rsvd; /* unused */
};
typedef struct vcpu_register_vcpu_info vcpu_register_vcpu_info_t;
DEFINE_XEN_GUEST_HANDLE(vcpu_register_vcpu_info_t);
/* Send an NMI to the specified VCPU. @extra_arg == NULL. */
#define VCPUOP_send_nmi 11
/*
* Get the physical ID information for a pinned vcpu's underlying physical
* processor. The physical ID informmation is architecture-specific.
* On x86: id[31:0]=apic_id, id[63:32]=acpi_id.
* This command returns -EINVAL if it is not a valid operation for this VCPU.
*/
#define VCPUOP_get_physid 12 /* arg == vcpu_get_physid_t */
struct vcpu_get_physid {
uint64_t phys_id;
};
typedef struct vcpu_get_physid vcpu_get_physid_t;
DEFINE_XEN_GUEST_HANDLE(vcpu_get_physid_t);
#define xen_vcpu_physid_to_x86_apicid(physid) ((uint32_t)(physid))
#define xen_vcpu_physid_to_x86_acpiid(physid) ((uint32_t)((physid) >> 32))
/*
* Register a memory location to get a secondary copy of the vcpu time
* parameters. The master copy still exists as part of the vcpu shared
* memory area, and this secondary copy is updated whenever the master copy
* is updated (and using the same versioning scheme for synchronisation).
*
* The intent is that this copy may be mapped (RO) into userspace so
* that usermode can compute system time using the time info and the
* tsc. Usermode will see an array of vcpu_time_info structures, one
* for each vcpu, and choose the right one by an existing mechanism
* which allows it to get the current vcpu number (such as via a
* segment limit). It can then apply the normal algorithm to compute
* system time from the tsc.
*
* @extra_arg == pointer to vcpu_register_time_info_memory_area structure.
*/
#define VCPUOP_register_vcpu_time_memory_area 13
DEFINE_XEN_GUEST_HANDLE(vcpu_time_info_t);
struct vcpu_register_time_memory_area {
union {
XEN_GUEST_HANDLE(vcpu_time_info_t) h;
struct vcpu_time_info *v;
uint64_t p;
} addr;
};
typedef struct vcpu_register_time_memory_area vcpu_register_time_memory_area_t;
DEFINE_XEN_GUEST_HANDLE(vcpu_register_time_memory_area_t);
#endif /* __XEN_PUBLIC_VCPU_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* version.h
*
* Xen version, type, and compile information.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2005, Nguyen Anh Quynh <aquynh@gmail.com>
* Copyright (c) 2005, Keir Fraser <keir@xensource.com>
*/
#ifndef __XEN_PUBLIC_VERSION_H__
#define __XEN_PUBLIC_VERSION_H__
#include "xen.h"
/* NB. All ops return zero on success, except XENVER_{version,pagesize} */
/* arg == NULL; returns major:minor (16:16). */
#define XENVER_version 0
/* arg == xen_extraversion_t. */
#define XENVER_extraversion 1
typedef char xen_extraversion_t[16];
#define XEN_EXTRAVERSION_LEN (sizeof(xen_extraversion_t))
/* arg == xen_compile_info_t. */
#define XENVER_compile_info 2
struct xen_compile_info {
char compiler[64];
char compile_by[16];
char compile_domain[32];
char compile_date[32];
};
typedef struct xen_compile_info xen_compile_info_t;
#define XENVER_capabilities 3
typedef char xen_capabilities_info_t[1024];
#define XEN_CAPABILITIES_INFO_LEN (sizeof(xen_capabilities_info_t))
#define XENVER_changeset 4
typedef char xen_changeset_info_t[64];
#define XEN_CHANGESET_INFO_LEN (sizeof(xen_changeset_info_t))
#define XENVER_platform_parameters 5
struct xen_platform_parameters {
xen_ulong_t virt_start;
};
typedef struct xen_platform_parameters xen_platform_parameters_t;
#define XENVER_get_features 6
struct xen_feature_info {
unsigned int submap_idx; /* IN: which 32-bit submap to return */
uint32_t submap; /* OUT: 32-bit submap */
};
typedef struct xen_feature_info xen_feature_info_t;
/* Declares the features reported by XENVER_get_features. */
#include "features.h"
/* arg == NULL; returns host memory page size. */
#define XENVER_pagesize 7
/* arg == xen_domain_handle_t. */
#define XENVER_guest_handle 8
#define XENVER_commandline 9
typedef char xen_commandline_t[1024];
#endif /* __XEN_PUBLIC_VERSION_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* xen-compat.h
*
* Guest OS interface to Xen. Compatibility layer.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2006, Christian Limpach
*/
#ifndef __XEN_PUBLIC_XEN_COMPAT_H__
#define __XEN_PUBLIC_XEN_COMPAT_H__
#define __XEN_LATEST_INTERFACE_VERSION__ 0x00040300
#if defined(__XEN__) || defined(__XEN_TOOLS__)
/* Xen is built with matching headers and implements the latest interface. */
#define __XEN_INTERFACE_VERSION__ __XEN_LATEST_INTERFACE_VERSION__
#elif !defined(__XEN_INTERFACE_VERSION__)
/* Guests which do not specify a version get the legacy interface. */
#define __XEN_INTERFACE_VERSION__ 0x00000000
#endif
#if __XEN_INTERFACE_VERSION__ > __XEN_LATEST_INTERFACE_VERSION__
#error "These header files do not support the requested interface version."
#endif
#endif /* __XEN_PUBLIC_XEN_COMPAT_H__ */

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/******************************************************************************
* xen.h
*
* Guest OS interface to Xen.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2004, K A Fraser
*/
#ifndef __XEN_PUBLIC_XEN_H__
#define __XEN_PUBLIC_XEN_H__
#include "xen-compat.h"
#if defined(__i386__) || defined(__x86_64__)
#include "arch-x86/xen.h"
#elif defined(__arm__) || defined (__aarch64__)
#include "arch-arm.h"
#else
#error "Unsupported architecture"
#endif
#ifndef __ASSEMBLY__
/* Guest handles for primitive C types. */
DEFINE_XEN_GUEST_HANDLE(char);
__DEFINE_XEN_GUEST_HANDLE(uchar, unsigned char);
DEFINE_XEN_GUEST_HANDLE(int);
__DEFINE_XEN_GUEST_HANDLE(uint, unsigned int);
#if __XEN_INTERFACE_VERSION__ < 0x00040300
DEFINE_XEN_GUEST_HANDLE(long);
__DEFINE_XEN_GUEST_HANDLE(ulong, unsigned long);
#endif
DEFINE_XEN_GUEST_HANDLE(void);
DEFINE_XEN_GUEST_HANDLE(uint64_t);
DEFINE_XEN_GUEST_HANDLE(xen_pfn_t);
DEFINE_XEN_GUEST_HANDLE(xen_ulong_t);
#endif
/*
* HYPERCALLS
*/
/* `incontents 100 hcalls List of hypercalls
* ` enum hypercall_num { // __HYPERVISOR_* => HYPERVISOR_*()
*/
#define __HYPERVISOR_set_trap_table 0
#define __HYPERVISOR_mmu_update 1
#define __HYPERVISOR_set_gdt 2
#define __HYPERVISOR_stack_switch 3
#define __HYPERVISOR_set_callbacks 4
#define __HYPERVISOR_fpu_taskswitch 5
#define __HYPERVISOR_sched_op_compat 6 /* compat since 0x00030101 */
#define __HYPERVISOR_platform_op 7
#define __HYPERVISOR_set_debugreg 8
#define __HYPERVISOR_get_debugreg 9
#define __HYPERVISOR_update_descriptor 10
#define __HYPERVISOR_memory_op 12
#define __HYPERVISOR_multicall 13
#define __HYPERVISOR_update_va_mapping 14
#define __HYPERVISOR_set_timer_op 15
#define __HYPERVISOR_event_channel_op_compat 16 /* compat since 0x00030202 */
#define __HYPERVISOR_xen_version 17
#define __HYPERVISOR_console_io 18
#define __HYPERVISOR_physdev_op_compat 19 /* compat since 0x00030202 */
#define __HYPERVISOR_grant_table_op 20
#define __HYPERVISOR_vm_assist 21
#define __HYPERVISOR_update_va_mapping_otherdomain 22
#define __HYPERVISOR_iret 23 /* x86 only */
#define __HYPERVISOR_vcpu_op 24
#define __HYPERVISOR_set_segment_base 25 /* x86/64 only */
#define __HYPERVISOR_mmuext_op 26
#define __HYPERVISOR_xsm_op 27
#define __HYPERVISOR_nmi_op 28
#define __HYPERVISOR_sched_op 29
#define __HYPERVISOR_callback_op 30
#define __HYPERVISOR_xenoprof_op 31
#define __HYPERVISOR_event_channel_op 32
#define __HYPERVISOR_physdev_op 33
#define __HYPERVISOR_hvm_op 34
#define __HYPERVISOR_sysctl 35
#define __HYPERVISOR_domctl 36
#define __HYPERVISOR_kexec_op 37
#define __HYPERVISOR_tmem_op 38
#define __HYPERVISOR_xc_reserved_op 39 /* reserved for XenClient */
/* Architecture-specific hypercall definitions. */
#define __HYPERVISOR_arch_0 48
#define __HYPERVISOR_arch_1 49
#define __HYPERVISOR_arch_2 50
#define __HYPERVISOR_arch_3 51
#define __HYPERVISOR_arch_4 52
#define __HYPERVISOR_arch_5 53
#define __HYPERVISOR_arch_6 54
#define __HYPERVISOR_arch_7 55
/* ` } */
/*
* HYPERCALL COMPATIBILITY.
*/
/* New sched_op hypercall introduced in 0x00030101. */
#if __XEN_INTERFACE_VERSION__ < 0x00030101
#undef __HYPERVISOR_sched_op
#define __HYPERVISOR_sched_op __HYPERVISOR_sched_op_compat
#endif
/* New event-channel and physdev hypercalls introduced in 0x00030202. */
#if __XEN_INTERFACE_VERSION__ < 0x00030202
#undef __HYPERVISOR_event_channel_op
#define __HYPERVISOR_event_channel_op __HYPERVISOR_event_channel_op_compat
#undef __HYPERVISOR_physdev_op
#define __HYPERVISOR_physdev_op __HYPERVISOR_physdev_op_compat
#endif
/* New platform_op hypercall introduced in 0x00030204. */
#if __XEN_INTERFACE_VERSION__ < 0x00030204
#define __HYPERVISOR_dom0_op __HYPERVISOR_platform_op
#endif
/*
* VIRTUAL INTERRUPTS
*
* Virtual interrupts that a guest OS may receive from Xen.
*
* In the side comments, 'V.' denotes a per-VCPU VIRQ while 'G.' denotes a
* global VIRQ. The former can be bound once per VCPU and cannot be re-bound.
* The latter can be allocated only once per guest: they must initially be
* allocated to VCPU0 but can subsequently be re-bound.
*/
/* ` enum virq { */
#define VIRQ_TIMER 0 /* V. Timebase update, and/or requested timeout. */
#define VIRQ_DEBUG 1 /* V. Request guest to dump debug info. */
#define VIRQ_CONSOLE 2 /* G. (DOM0) Bytes received on emergency console. */
#define VIRQ_DOM_EXC 3 /* G. (DOM0) Exceptional event for some domain. */
#define VIRQ_TBUF 4 /* G. (DOM0) Trace buffer has records available. */
#define VIRQ_DEBUGGER 6 /* G. (DOM0) A domain has paused for debugging. */
#define VIRQ_XENOPROF 7 /* V. XenOprofile interrupt: new sample available */
#define VIRQ_CON_RING 8 /* G. (DOM0) Bytes received on console */
#define VIRQ_PCPU_STATE 9 /* G. (DOM0) PCPU state changed */
#define VIRQ_MEM_EVENT 10 /* G. (DOM0) A memory event has occured */
#define VIRQ_XC_RESERVED 11 /* G. Reserved for XenClient */
#define VIRQ_ENOMEM 12 /* G. (DOM0) Low on heap memory */
/* Architecture-specific VIRQ definitions. */
#define VIRQ_ARCH_0 16
#define VIRQ_ARCH_1 17
#define VIRQ_ARCH_2 18
#define VIRQ_ARCH_3 19
#define VIRQ_ARCH_4 20
#define VIRQ_ARCH_5 21
#define VIRQ_ARCH_6 22
#define VIRQ_ARCH_7 23
/* ` } */
#define NR_VIRQS 24
/*
* ` enum neg_errnoval
* ` HYPERVISOR_mmu_update(const struct mmu_update reqs[],
* ` unsigned count, unsigned *done_out,
* ` unsigned foreigndom)
* `
* @reqs is an array of mmu_update_t structures ((ptr, val) pairs).
* @count is the length of the above array.
* @pdone is an output parameter indicating number of completed operations
* @foreigndom[15:0]: FD, the expected owner of data pages referenced in this
* hypercall invocation. Can be DOMID_SELF.
* @foreigndom[31:16]: PFD, the expected owner of pagetable pages referenced
* in this hypercall invocation. The value of this field
* (x) encodes the PFD as follows:
* x == 0 => PFD == DOMID_SELF
* x != 0 => PFD == x - 1
*
* Sub-commands: ptr[1:0] specifies the appropriate MMU_* command.
* -------------
* ptr[1:0] == MMU_NORMAL_PT_UPDATE:
* Updates an entry in a page table belonging to PFD. If updating an L1 table,
* and the new table entry is valid/present, the mapped frame must belong to
* FD. If attempting to map an I/O page then the caller assumes the privilege
* of the FD.
* FD == DOMID_IO: Permit /only/ I/O mappings, at the priv level of the caller.
* FD == DOMID_XEN: Map restricted areas of Xen's heap space.
* ptr[:2] -- Machine address of the page-table entry to modify.
* val -- Value to write.
*
* There also certain implicit requirements when using this hypercall. The
* pages that make up a pagetable must be mapped read-only in the guest.
* This prevents uncontrolled guest updates to the pagetable. Xen strictly
* enforces this, and will disallow any pagetable update which will end up
* mapping pagetable page RW, and will disallow using any writable page as a
* pagetable. In practice it means that when constructing a page table for a
* process, thread, etc, we MUST be very dilligient in following these rules:
* 1). Start with top-level page (PGD or in Xen language: L4). Fill out
* the entries.
* 2). Keep on going, filling out the upper (PUD or L3), and middle (PMD
* or L2).
* 3). Start filling out the PTE table (L1) with the PTE entries. Once
* done, make sure to set each of those entries to RO (so writeable bit
* is unset). Once that has been completed, set the PMD (L2) for this
* PTE table as RO.
* 4). When completed with all of the PMD (L2) entries, and all of them have
* been set to RO, make sure to set RO the PUD (L3). Do the same
* operation on PGD (L4) pagetable entries that have a PUD (L3) entry.
* 5). Now before you can use those pages (so setting the cr3), you MUST also
* pin them so that the hypervisor can verify the entries. This is done
* via the HYPERVISOR_mmuext_op(MMUEXT_PIN_L4_TABLE, guest physical frame
* number of the PGD (L4)). And this point the HYPERVISOR_mmuext_op(
* MMUEXT_NEW_BASEPTR, guest physical frame number of the PGD (L4)) can be
* issued.
* For 32-bit guests, the L4 is not used (as there is less pagetables), so
* instead use L3.
* At this point the pagetables can be modified using the MMU_NORMAL_PT_UPDATE
* hypercall. Also if so desired the OS can also try to write to the PTE
* and be trapped by the hypervisor (as the PTE entry is RO).
*
* To deallocate the pages, the operations are the reverse of the steps
* mentioned above. The argument is MMUEXT_UNPIN_TABLE for all levels and the
* pagetable MUST not be in use (meaning that the cr3 is not set to it).
*
* ptr[1:0] == MMU_MACHPHYS_UPDATE:
* Updates an entry in the machine->pseudo-physical mapping table.
* ptr[:2] -- Machine address within the frame whose mapping to modify.
* The frame must belong to the FD, if one is specified.
* val -- Value to write into the mapping entry.
*
* ptr[1:0] == MMU_PT_UPDATE_PRESERVE_AD:
* As MMU_NORMAL_PT_UPDATE above, but A/D bits currently in the PTE are ORed
* with those in @val.
*
* @val is usually the machine frame number along with some attributes.
* The attributes by default follow the architecture defined bits. Meaning that
* if this is a X86_64 machine and four page table layout is used, the layout
* of val is:
* - 63 if set means No execute (NX)
* - 46-13 the machine frame number
* - 12 available for guest
* - 11 available for guest
* - 10 available for guest
* - 9 available for guest
* - 8 global
* - 7 PAT (PSE is disabled, must use hypercall to make 4MB or 2MB pages)
* - 6 dirty
* - 5 accessed
* - 4 page cached disabled
* - 3 page write through
* - 2 userspace accessible
* - 1 writeable
* - 0 present
*
* The one bits that does not fit with the default layout is the PAGE_PSE
* also called PAGE_PAT). The MMUEXT_[UN]MARK_SUPER arguments to the
* HYPERVISOR_mmuext_op serve as mechanism to set a pagetable to be 4MB
* (or 2MB) instead of using the PAGE_PSE bit.
*
* The reason that the PAGE_PSE (bit 7) is not being utilized is due to Xen
* using it as the Page Attribute Table (PAT) bit - for details on it please
* refer to Intel SDM 10.12. The PAT allows to set the caching attributes of
* pages instead of using MTRRs.
*
* The PAT MSR is as follows (it is a 64-bit value, each entry is 8 bits):
* PAT4 PAT0
* +-----+-----+----+----+----+-----+----+----+
* | UC | UC- | WC | WB | UC | UC- | WC | WB | <= Linux
* +-----+-----+----+----+----+-----+----+----+
* | UC | UC- | WT | WB | UC | UC- | WT | WB | <= BIOS (default when machine boots)
* +-----+-----+----+----+----+-----+----+----+
* | rsv | rsv | WP | WC | UC | UC- | WT | WB | <= Xen
* +-----+-----+----+----+----+-----+----+----+
*
* The lookup of this index table translates to looking up
* Bit 7, Bit 4, and Bit 3 of val entry:
*
* PAT/PSE (bit 7) ... PCD (bit 4) .. PWT (bit 3).
*
* If all bits are off, then we are using PAT0. If bit 3 turned on,
* then we are using PAT1, if bit 3 and bit 4, then PAT2..
*
* As you can see, the Linux PAT1 translates to PAT4 under Xen. Which means
* that if a guest that follows Linux's PAT setup and would like to set Write
* Combined on pages it MUST use PAT4 entry. Meaning that Bit 7 (PAGE_PAT) is
* set. For example, under Linux it only uses PAT0, PAT1, and PAT2 for the
* caching as:
*
* WB = none (so PAT0)
* WC = PWT (bit 3 on)
* UC = PWT | PCD (bit 3 and 4 are on).
*
* To make it work with Xen, it needs to translate the WC bit as so:
*
* PWT (so bit 3 on) --> PAT (so bit 7 is on) and clear bit 3
*
* And to translate back it would:
*
* PAT (bit 7 on) --> PWT (bit 3 on) and clear bit 7.
*/
#define MMU_NORMAL_PT_UPDATE 0 /* checked '*ptr = val'. ptr is MA. */
#define MMU_MACHPHYS_UPDATE 1 /* ptr = MA of frame to modify entry for */
#define MMU_PT_UPDATE_PRESERVE_AD 2 /* atomically: *ptr = val | (*ptr&(A|D)) */
/*
* MMU EXTENDED OPERATIONS
*
* ` enum neg_errnoval
* ` HYPERVISOR_mmuext_op(mmuext_op_t uops[],
* ` unsigned int count,
* ` unsigned int *pdone,
* ` unsigned int foreigndom)
*/
/* HYPERVISOR_mmuext_op() accepts a list of mmuext_op structures.
* A foreigndom (FD) can be specified (or DOMID_SELF for none).
* Where the FD has some effect, it is described below.
*
* cmd: MMUEXT_(UN)PIN_*_TABLE
* mfn: Machine frame number to be (un)pinned as a p.t. page.
* The frame must belong to the FD, if one is specified.
*
* cmd: MMUEXT_NEW_BASEPTR
* mfn: Machine frame number of new page-table base to install in MMU.
*
* cmd: MMUEXT_NEW_USER_BASEPTR [x86/64 only]
* mfn: Machine frame number of new page-table base to install in MMU
* when in user space.
*
* cmd: MMUEXT_TLB_FLUSH_LOCAL
* No additional arguments. Flushes local TLB.
*
* cmd: MMUEXT_INVLPG_LOCAL
* linear_addr: Linear address to be flushed from the local TLB.
*
* cmd: MMUEXT_TLB_FLUSH_MULTI
* vcpumask: Pointer to bitmap of VCPUs to be flushed.
*
* cmd: MMUEXT_INVLPG_MULTI
* linear_addr: Linear address to be flushed.
* vcpumask: Pointer to bitmap of VCPUs to be flushed.
*
* cmd: MMUEXT_TLB_FLUSH_ALL
* No additional arguments. Flushes all VCPUs' TLBs.
*
* cmd: MMUEXT_INVLPG_ALL
* linear_addr: Linear address to be flushed from all VCPUs' TLBs.
*
* cmd: MMUEXT_FLUSH_CACHE
* No additional arguments. Writes back and flushes cache contents.
*
* cmd: MMUEXT_FLUSH_CACHE_GLOBAL
* No additional arguments. Writes back and flushes cache contents
* on all CPUs in the system.
*
* cmd: MMUEXT_SET_LDT
* linear_addr: Linear address of LDT base (NB. must be page-aligned).
* nr_ents: Number of entries in LDT.
*
* cmd: MMUEXT_CLEAR_PAGE
* mfn: Machine frame number to be cleared.
*
* cmd: MMUEXT_COPY_PAGE
* mfn: Machine frame number of the destination page.
* src_mfn: Machine frame number of the source page.
*
* cmd: MMUEXT_[UN]MARK_SUPER
* mfn: Machine frame number of head of superpage to be [un]marked.
*/
/* ` enum mmuext_cmd { */
#define MMUEXT_PIN_L1_TABLE 0
#define MMUEXT_PIN_L2_TABLE 1
#define MMUEXT_PIN_L3_TABLE 2
#define MMUEXT_PIN_L4_TABLE 3
#define MMUEXT_UNPIN_TABLE 4
#define MMUEXT_NEW_BASEPTR 5
#define MMUEXT_TLB_FLUSH_LOCAL 6
#define MMUEXT_INVLPG_LOCAL 7
#define MMUEXT_TLB_FLUSH_MULTI 8
#define MMUEXT_INVLPG_MULTI 9
#define MMUEXT_TLB_FLUSH_ALL 10
#define MMUEXT_INVLPG_ALL 11
#define MMUEXT_FLUSH_CACHE 12
#define MMUEXT_SET_LDT 13
#define MMUEXT_NEW_USER_BASEPTR 15
#define MMUEXT_CLEAR_PAGE 16
#define MMUEXT_COPY_PAGE 17
#define MMUEXT_FLUSH_CACHE_GLOBAL 18
#define MMUEXT_MARK_SUPER 19
#define MMUEXT_UNMARK_SUPER 20
/* ` } */
#ifndef __ASSEMBLY__
struct mmuext_op {
unsigned int cmd; /* => enum mmuext_cmd */
union {
/* [UN]PIN_TABLE, NEW_BASEPTR, NEW_USER_BASEPTR
* CLEAR_PAGE, COPY_PAGE, [UN]MARK_SUPER */
xen_pfn_t mfn;
/* INVLPG_LOCAL, INVLPG_ALL, SET_LDT */
unsigned long linear_addr;
} arg1;
union {
/* SET_LDT */
unsigned int nr_ents;
/* TLB_FLUSH_MULTI, INVLPG_MULTI */
#if __XEN_INTERFACE_VERSION__ >= 0x00030205
XEN_GUEST_HANDLE(const_void) vcpumask;
#else
const void *vcpumask;
#endif
/* COPY_PAGE */
xen_pfn_t src_mfn;
} arg2;
};
typedef struct mmuext_op mmuext_op_t;
DEFINE_XEN_GUEST_HANDLE(mmuext_op_t);
#endif
/*
* ` enum neg_errnoval
* ` HYPERVISOR_update_va_mapping(unsigned long va, u64 val,
* ` enum uvm_flags flags)
* `
* ` enum neg_errnoval
* ` HYPERVISOR_update_va_mapping_otherdomain(unsigned long va, u64 val,
* ` enum uvm_flags flags,
* ` domid_t domid)
* `
* ` @va: The virtual address whose mapping we want to change
* ` @val: The new page table entry, must contain a machine address
* ` @flags: Control TLB flushes
*/
/* These are passed as 'flags' to update_va_mapping. They can be ORed. */
/* When specifying UVMF_MULTI, also OR in a pointer to a CPU bitmap. */
/* UVMF_LOCAL is merely UVMF_MULTI with a NULL bitmap pointer. */
/* ` enum uvm_flags { */
#define UVMF_NONE (0UL<<0) /* No flushing at all. */
#define UVMF_TLB_FLUSH (1UL<<0) /* Flush entire TLB(s). */
#define UVMF_INVLPG (2UL<<0) /* Flush only one entry. */
#define UVMF_FLUSHTYPE_MASK (3UL<<0)
#define UVMF_MULTI (0UL<<2) /* Flush subset of TLBs. */
#define UVMF_LOCAL (0UL<<2) /* Flush local TLB. */
#define UVMF_ALL (1UL<<2) /* Flush all TLBs. */
/* ` } */
/*
* Commands to HYPERVISOR_console_io().
*/
#define CONSOLEIO_write 0
#define CONSOLEIO_read 1
/*
* Commands to HYPERVISOR_vm_assist().
*/
#define VMASST_CMD_enable 0
#define VMASST_CMD_disable 1
/* x86/32 guests: simulate full 4GB segment limits. */
#define VMASST_TYPE_4gb_segments 0
/* x86/32 guests: trap (vector 15) whenever above vmassist is used. */
#define VMASST_TYPE_4gb_segments_notify 1
/*
* x86 guests: support writes to bottom-level PTEs.
* NB1. Page-directory entries cannot be written.
* NB2. Guest must continue to remove all writable mappings of PTEs.
*/
#define VMASST_TYPE_writable_pagetables 2
/* x86/PAE guests: support PDPTs above 4GB. */
#define VMASST_TYPE_pae_extended_cr3 3
#define MAX_VMASST_TYPE 3
#ifndef __ASSEMBLY__
typedef uint16_t domid_t;
/* Domain ids >= DOMID_FIRST_RESERVED cannot be used for ordinary domains. */
#define DOMID_FIRST_RESERVED (0x7FF0U)
/* DOMID_SELF is used in certain contexts to refer to oneself. */
#define DOMID_SELF (0x7FF0U)
/*
* DOMID_IO is used to restrict page-table updates to mapping I/O memory.
* Although no Foreign Domain need be specified to map I/O pages, DOMID_IO
* is useful to ensure that no mappings to the OS's own heap are accidentally
* installed. (e.g., in Linux this could cause havoc as reference counts
* aren't adjusted on the I/O-mapping code path).
* This only makes sense in MMUEXT_SET_FOREIGNDOM, but in that context can
* be specified by any calling domain.
*/
#define DOMID_IO (0x7FF1U)
/*
* DOMID_XEN is used to allow privileged domains to map restricted parts of
* Xen's heap space (e.g., the machine_to_phys table).
* This only makes sense in MMUEXT_SET_FOREIGNDOM, and is only permitted if
* the caller is privileged.
*/
#define DOMID_XEN (0x7FF2U)
/*
* DOMID_COW is used as the owner of sharable pages */
#define DOMID_COW (0x7FF3U)
/* DOMID_INVALID is used to identify pages with unknown owner. */
#define DOMID_INVALID (0x7FF4U)
/* Idle domain. */
#define DOMID_IDLE (0x7FFFU)
/*
* Send an array of these to HYPERVISOR_mmu_update().
* NB. The fields are natural pointer/address size for this architecture.
*/
struct mmu_update {
uint64_t ptr; /* Machine address of PTE. */
uint64_t val; /* New contents of PTE. */
};
typedef struct mmu_update mmu_update_t;
DEFINE_XEN_GUEST_HANDLE(mmu_update_t);
/*
* ` enum neg_errnoval
* ` HYPERVISOR_multicall(multicall_entry_t call_list[],
* ` unsigned int nr_calls);
*
* NB. The fields are natural register size for this architecture.
*/
struct multicall_entry {
unsigned long op, result;
unsigned long args[6];
};
typedef struct multicall_entry multicall_entry_t;
DEFINE_XEN_GUEST_HANDLE(multicall_entry_t);
/*
* Event channel endpoints per domain:
* 1024 if a long is 32 bits; 4096 if a long is 64 bits.
*/
#define NR_EVENT_CHANNELS (sizeof(xen_ulong_t) * sizeof(xen_ulong_t) * 64)
struct vcpu_time_info {
/*
* Updates to the following values are preceded and followed by an
* increment of 'version'. The guest can therefore detect updates by
* looking for changes to 'version'. If the least-significant bit of
* the version number is set then an update is in progress and the guest
* must wait to read a consistent set of values.
* The correct way to interact with the version number is similar to
* Linux's seqlock: see the implementations of read_seqbegin/read_seqretry.
*/
uint32_t version;
uint32_t pad0;
uint64_t tsc_timestamp; /* TSC at last update of time vals. */
uint64_t system_time; /* Time, in nanosecs, since boot. */
/*
* Current system time:
* system_time +
* ((((tsc - tsc_timestamp) << tsc_shift) * tsc_to_system_mul) >> 32)
* CPU frequency (Hz):
* ((10^9 << 32) / tsc_to_system_mul) >> tsc_shift
*/
uint32_t tsc_to_system_mul;
int8_t tsc_shift;
int8_t pad1[3];
}; /* 32 bytes */
typedef struct vcpu_time_info vcpu_time_info_t;
struct vcpu_info {
/*
* 'evtchn_upcall_pending' is written non-zero by Xen to indicate
* a pending notification for a particular VCPU. It is then cleared
* by the guest OS /before/ checking for pending work, thus avoiding
* a set-and-check race. Note that the mask is only accessed by Xen
* on the CPU that is currently hosting the VCPU. This means that the
* pending and mask flags can be updated by the guest without special
* synchronisation (i.e., no need for the x86 LOCK prefix).
* This may seem suboptimal because if the pending flag is set by
* a different CPU then an IPI may be scheduled even when the mask
* is set. However, note:
* 1. The task of 'interrupt holdoff' is covered by the per-event-
* channel mask bits. A 'noisy' event that is continually being
* triggered can be masked at source at this very precise
* granularity.
* 2. The main purpose of the per-VCPU mask is therefore to restrict
* reentrant execution: whether for concurrency control, or to
* prevent unbounded stack usage. Whatever the purpose, we expect
* that the mask will be asserted only for short periods at a time,
* and so the likelihood of a 'spurious' IPI is suitably small.
* The mask is read before making an event upcall to the guest: a
* non-zero mask therefore guarantees that the VCPU will not receive
* an upcall activation. The mask is cleared when the VCPU requests
* to block: this avoids wakeup-waiting races.
*/
uint8_t evtchn_upcall_pending;
uint8_t evtchn_upcall_mask;
xen_ulong_t evtchn_pending_sel;
struct arch_vcpu_info arch;
struct vcpu_time_info time;
}; /* 64 bytes (x86) */
#ifndef __XEN__
typedef struct vcpu_info vcpu_info_t;
#endif
/*
* `incontents 200 startofday_shared Start-of-day shared data structure
* Xen/kernel shared data -- pointer provided in start_info.
*
* This structure is defined to be both smaller than a page, and the
* only data on the shared page, but may vary in actual size even within
* compatible Xen versions; guests should not rely on the size
* of this structure remaining constant.
*/
struct shared_info {
struct vcpu_info vcpu_info[XEN_LEGACY_MAX_VCPUS];
/*
* A domain can create "event channels" on which it can send and receive
* asynchronous event notifications. There are three classes of event that
* are delivered by this mechanism:
* 1. Bi-directional inter- and intra-domain connections. Domains must
* arrange out-of-band to set up a connection (usually by allocating
* an unbound 'listener' port and avertising that via a storage service
* such as xenstore).
* 2. Physical interrupts. A domain with suitable hardware-access
* privileges can bind an event-channel port to a physical interrupt
* source.
* 3. Virtual interrupts ('events'). A domain can bind an event-channel
* port to a virtual interrupt source, such as the virtual-timer
* device or the emergency console.
*
* Event channels are addressed by a "port index". Each channel is
* associated with two bits of information:
* 1. PENDING -- notifies the domain that there is a pending notification
* to be processed. This bit is cleared by the guest.
* 2. MASK -- if this bit is clear then a 0->1 transition of PENDING
* will cause an asynchronous upcall to be scheduled. This bit is only
* updated by the guest. It is read-only within Xen. If a channel
* becomes pending while the channel is masked then the 'edge' is lost
* (i.e., when the channel is unmasked, the guest must manually handle
* pending notifications as no upcall will be scheduled by Xen).
*
* To expedite scanning of pending notifications, any 0->1 pending
* transition on an unmasked channel causes a corresponding bit in a
* per-vcpu selector word to be set. Each bit in the selector covers a
* 'C long' in the PENDING bitfield array.
*/
xen_ulong_t evtchn_pending[sizeof(xen_ulong_t) * 8];
xen_ulong_t evtchn_mask[sizeof(xen_ulong_t) * 8];
/*
* Wallclock time: updated only by control software. Guests should base
* their gettimeofday() syscall on this wallclock-base value.
*/
uint32_t wc_version; /* Version counter: see vcpu_time_info_t. */
uint32_t wc_sec; /* Secs 00:00:00 UTC, Jan 1, 1970. */
uint32_t wc_nsec; /* Nsecs 00:00:00 UTC, Jan 1, 1970. */
struct arch_shared_info arch;
};
#ifndef __XEN__
typedef struct shared_info shared_info_t;
#endif
/*
* `incontents 200 startofday Start-of-day memory layout
*
* 1. The domain is started within contiguous virtual-memory region.
* 2. The contiguous region ends on an aligned 4MB boundary.
* 3. This the order of bootstrap elements in the initial virtual region:
* a. relocated kernel image
* b. initial ram disk [mod_start, mod_len]
* c. list of allocated page frames [mfn_list, nr_pages]
* (unless relocated due to XEN_ELFNOTE_INIT_P2M)
* d. start_info_t structure [register ESI (x86)]
* e. bootstrap page tables [pt_base and CR3 (x86)]
* f. bootstrap stack [register ESP (x86)]
* 4. Bootstrap elements are packed together, but each is 4kB-aligned.
* 5. The initial ram disk may be omitted.
* 6. The list of page frames forms a contiguous 'pseudo-physical' memory
* layout for the domain. In particular, the bootstrap virtual-memory
* region is a 1:1 mapping to the first section of the pseudo-physical map.
* 7. All bootstrap elements are mapped read-writable for the guest OS. The
* only exception is the bootstrap page table, which is mapped read-only.
* 8. There is guaranteed to be at least 512kB padding after the final
* bootstrap element. If necessary, the bootstrap virtual region is
* extended by an extra 4MB to ensure this.
*
* Note: Prior to 25833:bb85bbccb1c9. ("x86/32-on-64 adjust Dom0 initial page
* table layout") a bug caused the pt_base (3.e above) and cr3 to not point
* to the start of the guest page tables (it was offset by two pages).
* This only manifested itself on 32-on-64 dom0 kernels and not 32-on-64 domU
* or 64-bit kernels of any colour. The page tables for a 32-on-64 dom0 got
* allocated in the order: 'first L1','first L2', 'first L3', so the offset
* to the page table base is by two pages back. The initial domain if it is
* 32-bit and runs under a 64-bit hypervisor should _NOT_ use two of the
* pages preceding pt_base and mark them as reserved/unused.
*/
#define MAX_GUEST_CMDLINE 1024
struct start_info {
/* THE FOLLOWING ARE FILLED IN BOTH ON INITIAL BOOT AND ON RESUME. */
char magic[32]; /* "xen-<version>-<platform>". */
unsigned long nr_pages; /* Total pages allocated to this domain. */
unsigned long shared_info; /* MACHINE address of shared info struct. */
uint32_t flags; /* SIF_xxx flags. */
xen_pfn_t store_mfn; /* MACHINE page number of shared page. */
uint32_t store_evtchn; /* Event channel for store communication. */
union {
struct {
xen_pfn_t mfn; /* MACHINE page number of console page. */
uint32_t evtchn; /* Event channel for console page. */
} domU;
struct {
uint32_t info_off; /* Offset of console_info struct. */
uint32_t info_size; /* Size of console_info struct from start.*/
} dom0;
} console;
/* THE FOLLOWING ARE ONLY FILLED IN ON INITIAL BOOT (NOT RESUME). */
unsigned long pt_base; /* VIRTUAL address of page directory. */
unsigned long nr_pt_frames; /* Number of bootstrap p.t. frames. */
unsigned long mfn_list; /* VIRTUAL address of page-frame list. */
unsigned long mod_start; /* VIRTUAL address of pre-loaded module */
/* (PFN of pre-loaded module if */
/* SIF_MOD_START_PFN set in flags). */
unsigned long mod_len; /* Size (bytes) of pre-loaded module. */
int8_t cmd_line[MAX_GUEST_CMDLINE];
/* The pfn range here covers both page table and p->m table frames. */
unsigned long first_p2m_pfn;/* 1st pfn forming initial P->M table. */
unsigned long nr_p2m_frames;/* # of pfns forming initial P->M table. */
};
typedef struct start_info start_info_t;
/* New console union for dom0 introduced in 0x00030203. */
#if __XEN_INTERFACE_VERSION__ < 0x00030203
#define console_mfn console.domU.mfn
#define console_evtchn console.domU.evtchn
#endif
/* These flags are passed in the 'flags' field of start_info_t. */
#define SIF_PRIVILEGED (1<<0) /* Is the domain privileged? */
#define SIF_INITDOMAIN (1<<1) /* Is this the initial control domain? */
#define SIF_MULTIBOOT_MOD (1<<2) /* Is mod_start a multiboot module? */
#define SIF_MOD_START_PFN (1<<3) /* Is mod_start a PFN? */
#define SIF_PM_MASK (0xFF<<8) /* reserve 1 byte for xen-pm options */
/*
* A multiboot module is a package containing modules very similar to a
* multiboot module array. The only differences are:
* - the array of module descriptors is by convention simply at the beginning
* of the multiboot module,
* - addresses in the module descriptors are based on the beginning of the
* multiboot module,
* - the number of modules is determined by a termination descriptor that has
* mod_start == 0.
*
* This permits to both build it statically and reference it in a configuration
* file, and let the PV guest easily rebase the addresses to virtual addresses
* and at the same time count the number of modules.
*/
struct xen_multiboot_mod_list
{
/* Address of first byte of the module */
uint32_t mod_start;
/* Address of last byte of the module (inclusive) */
uint32_t mod_end;
/* Address of zero-terminated command line */
uint32_t cmdline;
/* Unused, must be zero */
uint32_t pad;
};
/*
* `incontents 200 startofday_dom0_console Dom0_console
*
* The console structure in start_info.console.dom0
*
* This structure includes a variety of information required to
* have a working VGA/VESA console.
*/
typedef struct dom0_vga_console_info {
uint8_t video_type; /* DOM0_VGA_CONSOLE_??? */
#define XEN_VGATYPE_TEXT_MODE_3 0x03
#define XEN_VGATYPE_VESA_LFB 0x23
#define XEN_VGATYPE_EFI_LFB 0x70
union {
struct {
/* Font height, in pixels. */
uint16_t font_height;
/* Cursor location (column, row). */
uint16_t cursor_x, cursor_y;
/* Number of rows and columns (dimensions in characters). */
uint16_t rows, columns;
} text_mode_3;
struct {
/* Width and height, in pixels. */
uint16_t width, height;
/* Bytes per scan line. */
uint16_t bytes_per_line;
/* Bits per pixel. */
uint16_t bits_per_pixel;
/* LFB physical address, and size (in units of 64kB). */
uint32_t lfb_base;
uint32_t lfb_size;
/* RGB mask offsets and sizes, as defined by VBE 1.2+ */
uint8_t red_pos, red_size;
uint8_t green_pos, green_size;
uint8_t blue_pos, blue_size;
uint8_t rsvd_pos, rsvd_size;
#if __XEN_INTERFACE_VERSION__ >= 0x00030206
/* VESA capabilities (offset 0xa, VESA command 0x4f00). */
uint32_t gbl_caps;
/* Mode attributes (offset 0x0, VESA command 0x4f01). */
uint16_t mode_attrs;
#endif
} vesa_lfb;
} u;
} dom0_vga_console_info_t;
#define xen_vga_console_info dom0_vga_console_info
#define xen_vga_console_info_t dom0_vga_console_info_t
typedef uint8_t xen_domain_handle_t[16];
/* Turn a plain number into a C unsigned long constant. */
#define __mk_unsigned_long(x) x ## UL
#define mk_unsigned_long(x) __mk_unsigned_long(x)
__DEFINE_XEN_GUEST_HANDLE(uint8, uint8_t);
__DEFINE_XEN_GUEST_HANDLE(uint16, uint16_t);
__DEFINE_XEN_GUEST_HANDLE(uint32, uint32_t);
__DEFINE_XEN_GUEST_HANDLE(uint64, uint64_t);
#else /* __ASSEMBLY__ */
/* In assembly code we cannot use C numeric constant suffixes. */
#define mk_unsigned_long(x) x
#endif /* !__ASSEMBLY__ */
/* Default definitions for macros used by domctl/sysctl. */
#if defined(__XEN__) || defined(__XEN_TOOLS__)
#ifndef uint64_aligned_t
#define uint64_aligned_t uint64_t
#endif
#ifndef XEN_GUEST_HANDLE_64
#define XEN_GUEST_HANDLE_64(name) XEN_GUEST_HANDLE(name)
#endif
#ifndef __ASSEMBLY__
struct xenctl_bitmap {
XEN_GUEST_HANDLE_64(uint8) bitmap;
uint32_t nr_bits;
};
#endif
#endif /* defined(__XEN__) || defined(__XEN_TOOLS__) */
#endif /* __XEN_PUBLIC_XEN_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (C) IBM Corp. 2006
*/
#ifndef _XEN_XENCOMM_H_
#define _XEN_XENCOMM_H_
/* A xencomm descriptor is a scatter/gather list containing physical
* addresses corresponding to a virtually contiguous memory area. The
* hypervisor translates these physical addresses to machine addresses to copy
* to and from the virtually contiguous area.
*/
#define XENCOMM_MAGIC 0x58434F4D /* 'XCOM' */
#define XENCOMM_INVALID (~0UL)
struct xencomm_desc {
uint32_t magic;
uint32_t nr_addrs; /* the number of entries in address[] */
uint64_t address[0];
};
#endif /* _XEN_XENCOMM_H_ */

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/******************************************************************************
* xenoprof.h
*
* Interface for enabling system wide profiling based on hardware performance
* counters
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (C) 2005 Hewlett-Packard Co.
* Written by Aravind Menon & Jose Renato Santos
*/
#ifndef __XEN_PUBLIC_XENOPROF_H__
#define __XEN_PUBLIC_XENOPROF_H__
#include "xen.h"
/*
* Commands to HYPERVISOR_xenoprof_op().
*/
#define XENOPROF_init 0
#define XENOPROF_reset_active_list 1
#define XENOPROF_reset_passive_list 2
#define XENOPROF_set_active 3
#define XENOPROF_set_passive 4
#define XENOPROF_reserve_counters 5
#define XENOPROF_counter 6
#define XENOPROF_setup_events 7
#define XENOPROF_enable_virq 8
#define XENOPROF_start 9
#define XENOPROF_stop 10
#define XENOPROF_disable_virq 11
#define XENOPROF_release_counters 12
#define XENOPROF_shutdown 13
#define XENOPROF_get_buffer 14
#define XENOPROF_set_backtrace 15
/* AMD IBS support */
#define XENOPROF_get_ibs_caps 16
#define XENOPROF_ibs_counter 17
#define XENOPROF_last_op 17
#define MAX_OPROF_EVENTS 32
#define MAX_OPROF_DOMAINS 25
#define XENOPROF_CPU_TYPE_SIZE 64
/* Xenoprof performance events (not Xen events) */
struct event_log {
uint64_t eip;
uint8_t mode;
uint8_t event;
};
/* PC value that indicates a special code */
#define XENOPROF_ESCAPE_CODE (~0ULL)
/* Transient events for the xenoprof->oprofile cpu buf */
#define XENOPROF_TRACE_BEGIN 1
/* Xenoprof buffer shared between Xen and domain - 1 per VCPU */
struct xenoprof_buf {
uint32_t event_head;
uint32_t event_tail;
uint32_t event_size;
uint32_t vcpu_id;
uint64_t xen_samples;
uint64_t kernel_samples;
uint64_t user_samples;
uint64_t lost_samples;
struct event_log event_log[1];
};
#ifndef __XEN__
typedef struct xenoprof_buf xenoprof_buf_t;
DEFINE_XEN_GUEST_HANDLE(xenoprof_buf_t);
#endif
struct xenoprof_init {
int32_t num_events;
int32_t is_primary;
char cpu_type[XENOPROF_CPU_TYPE_SIZE];
};
typedef struct xenoprof_init xenoprof_init_t;
DEFINE_XEN_GUEST_HANDLE(xenoprof_init_t);
struct xenoprof_get_buffer {
int32_t max_samples;
int32_t nbuf;
int32_t bufsize;
uint64_t buf_gmaddr;
};
typedef struct xenoprof_get_buffer xenoprof_get_buffer_t;
DEFINE_XEN_GUEST_HANDLE(xenoprof_get_buffer_t);
struct xenoprof_counter {
uint32_t ind;
uint64_t count;
uint32_t enabled;
uint32_t event;
uint32_t hypervisor;
uint32_t kernel;
uint32_t user;
uint64_t unit_mask;
};
typedef struct xenoprof_counter xenoprof_counter_t;
DEFINE_XEN_GUEST_HANDLE(xenoprof_counter_t);
typedef struct xenoprof_passive {
uint16_t domain_id;
int32_t max_samples;
int32_t nbuf;
int32_t bufsize;
uint64_t buf_gmaddr;
} xenoprof_passive_t;
DEFINE_XEN_GUEST_HANDLE(xenoprof_passive_t);
struct xenoprof_ibs_counter {
uint64_t op_enabled;
uint64_t fetch_enabled;
uint64_t max_cnt_fetch;
uint64_t max_cnt_op;
uint64_t rand_en;
uint64_t dispatched_ops;
};
typedef struct xenoprof_ibs_counter xenoprof_ibs_counter_t;
DEFINE_XEN_GUEST_HANDLE(xenoprof_ibs_counter_t);
#endif /* __XEN_PUBLIC_XENOPROF_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

201
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/*
* This file contains the flask_op hypercall commands and definitions.
*
* Author: George Coker, <gscoker@alpha.ncsc.mil>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef __FLASK_OP_H__
#define __FLASK_OP_H__
#define XEN_FLASK_INTERFACE_VERSION 1
struct xen_flask_load {
XEN_GUEST_HANDLE(char) buffer;
uint32_t size;
};
struct xen_flask_setenforce {
uint32_t enforcing;
};
struct xen_flask_sid_context {
/* IN/OUT: sid to convert to/from string */
uint32_t sid;
/* IN: size of the context buffer
* OUT: actual size of the output context string
*/
uint32_t size;
XEN_GUEST_HANDLE(char) context;
};
struct xen_flask_access {
/* IN: access request */
uint32_t ssid;
uint32_t tsid;
uint32_t tclass;
uint32_t req;
/* OUT: AVC data */
uint32_t allowed;
uint32_t audit_allow;
uint32_t audit_deny;
uint32_t seqno;
};
struct xen_flask_transition {
/* IN: transition SIDs and class */
uint32_t ssid;
uint32_t tsid;
uint32_t tclass;
/* OUT: new SID */
uint32_t newsid;
};
struct xen_flask_userlist {
/* IN: starting SID for list */
uint32_t start_sid;
/* IN: size of user string and output buffer
* OUT: number of SIDs returned */
uint32_t size;
union {
/* IN: user to enumerate SIDs */
XEN_GUEST_HANDLE(char) user;
/* OUT: SID list */
XEN_GUEST_HANDLE(uint32) sids;
} u;
};
struct xen_flask_boolean {
/* IN/OUT: numeric identifier for boolean [GET/SET]
* If -1, name will be used and bool_id will be filled in. */
uint32_t bool_id;
/* OUT: current enforcing value of boolean [GET/SET] */
uint8_t enforcing;
/* OUT: pending value of boolean [GET/SET] */
uint8_t pending;
/* IN: new value of boolean [SET] */
uint8_t new_value;
/* IN: commit new value instead of only setting pending [SET] */
uint8_t commit;
/* IN: size of boolean name buffer [GET/SET]
* OUT: actual size of name [GET only] */
uint32_t size;
/* IN: if bool_id is -1, used to find boolean [GET/SET]
* OUT: textual name of boolean [GET only]
*/
XEN_GUEST_HANDLE(char) name;
};
struct xen_flask_setavc_threshold {
/* IN */
uint32_t threshold;
};
struct xen_flask_hash_stats {
/* OUT */
uint32_t entries;
uint32_t buckets_used;
uint32_t buckets_total;
uint32_t max_chain_len;
};
struct xen_flask_cache_stats {
/* IN */
uint32_t cpu;
/* OUT */
uint32_t lookups;
uint32_t hits;
uint32_t misses;
uint32_t allocations;
uint32_t reclaims;
uint32_t frees;
};
struct xen_flask_ocontext {
/* IN */
uint32_t ocon;
uint32_t sid;
uint64_t low, high;
};
struct xen_flask_peersid {
/* IN */
evtchn_port_t evtchn;
/* OUT */
uint32_t sid;
};
struct xen_flask_relabel {
/* IN */
uint32_t domid;
uint32_t sid;
};
struct xen_flask_op {
uint32_t cmd;
#define FLASK_LOAD 1
#define FLASK_GETENFORCE 2
#define FLASK_SETENFORCE 3
#define FLASK_CONTEXT_TO_SID 4
#define FLASK_SID_TO_CONTEXT 5
#define FLASK_ACCESS 6
#define FLASK_CREATE 7
#define FLASK_RELABEL 8
#define FLASK_USER 9
#define FLASK_POLICYVERS 10
#define FLASK_GETBOOL 11
#define FLASK_SETBOOL 12
#define FLASK_COMMITBOOLS 13
#define FLASK_MLS 14
#define FLASK_DISABLE 15
#define FLASK_GETAVC_THRESHOLD 16
#define FLASK_SETAVC_THRESHOLD 17
#define FLASK_AVC_HASHSTATS 18
#define FLASK_AVC_CACHESTATS 19
#define FLASK_MEMBER 20
#define FLASK_ADD_OCONTEXT 21
#define FLASK_DEL_OCONTEXT 22
#define FLASK_GET_PEER_SID 23
#define FLASK_RELABEL_DOMAIN 24
uint32_t interface_version; /* XEN_FLASK_INTERFACE_VERSION */
union {
struct xen_flask_load load;
struct xen_flask_setenforce enforce;
/* FLASK_CONTEXT_TO_SID and FLASK_SID_TO_CONTEXT */
struct xen_flask_sid_context sid_context;
struct xen_flask_access access;
/* FLASK_CREATE, FLASK_RELABEL, FLASK_MEMBER */
struct xen_flask_transition transition;
struct xen_flask_userlist userlist;
/* FLASK_GETBOOL, FLASK_SETBOOL */
struct xen_flask_boolean boolean;
struct xen_flask_setavc_threshold setavc_threshold;
struct xen_flask_hash_stats hash_stats;
struct xen_flask_cache_stats cache_stats;
/* FLASK_ADD_OCONTEXT, FLASK_DEL_OCONTEXT */
struct xen_flask_ocontext ocontext;
struct xen_flask_peersid peersid;
struct xen_flask_relabel relabel;
} u;
};
typedef struct xen_flask_op xen_flask_op_t;
DEFINE_XEN_GUEST_HANDLE(xen_flask_op_t);
#endif

72
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#include "xendefs.h"
#include "mem.h"
#define ENTRY(X) TEXT X(SB), $0
/*
* XXX there's a race in here because we can get an upcall
* betwen the spllo() (in xenupcall) and the rti. This will make
* handlers stack, which could lead to a blown stack. Probably
* not worth fixing (but possibly worth detecting and panicing).
*
* For fun get some popcorn and turn off the lights and read the
* linux solution (search for scrit/ecrit).
*/
ENTRY(hypervisor_callback)
SUBL $8, SP /* space for ecode and trap type */
PUSHL DS /* save DS */
PUSHL $(KDSEL)
POPL DS /* fix up DS */
PUSHL ES /* save ES */
PUSHL $(KDSEL)
POPL ES /* fix up ES */
PUSHL FS /* save the rest of the Ureg struct */
PUSHL GS
PUSHAL
PUSHL SP /* Ureg* argument to trap */
CALL xenupcall+0(SB)
POPL AX
POPAL
POPL GS
POPL FS
POPL ES
POPL DS
ADDL $8, SP /* pop error code and trap type */
IRETL
/* Hypervisor uses this for application faults while it executes.*/
ENTRY(failsafe_callback)
IRETL
PUSHL AX
CALL install_safe_pf_handler(SB)
MOVL 32(SP), BX
MOVW BX, DS
MOVL 36(SP), BX
MOVW BX, ES
MOVL 40(SP), BX
MOVW BX, FS
MOVL 44(SP), BX
MOVW BX, GS
CALL install_normal_pf_handler(SB)
POPL AX
ADDL $16, SP
IRETL
/* xen traps with varying argument counts */
TEXT xencall6(SB), $0
MOVL VDI+20(FP), DI
TEXT xencall5(SB), $0
MOVL VSI+16(FP), SI
TEXT xencall4(SB), $0
MOVL VDX+12(FP), DX
TEXT xencall3(SB), $0
MOVL VCX+8(FP), CX
TEXT xencall2(SB), $0
MOVL VBX+4(FP), BX
TEXT xencall1(SB), $0
MOVL op+0(FP), AX
INT $0x82
RET

162
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/*
* Transform a Plan 9 386 bootable image to make it compatible with
* the Xen binary image loader:
*
* - pad the beginning of the text with zeroes so that the image can be loaded at
* guest 'physical' address 0
* - insert a Xen header
* - pad the end of the text so that data segment is page-aligned in the file
* - adjust the linenumber-pc table so Plan 9 debuggers won't be confused
*/
#include <u.h>
#include <libc.h>
#include <bio.h>
#include <mach.h>
#define PAGE 4096
#define PLAN9HDR 32
#define XENHDR 32
#define KZERO 0x80000000
#define FLAG_VALID (1<<16)
#define FLAG_PAE (1<<14)
void
lput(long n)
{
char buf[sizeof(long)];
int i;
for (i = sizeof(long)-1; i >= 0; i--) {
buf[i] = n;
n >>= 8;
}
write(1, buf, sizeof(long));
}
void
rput(long n)
{
char buf[sizeof(long)];
int i;
for (i = 0; i < sizeof(long); i++) {
buf[i] = n;
n >>= 8;
}
write(1, buf, sizeof(long));
}
void
copy(long n)
{
char buf[PAGE];
int m;
while (n > 0) {
m = sizeof buf;
if (m > n)
m = n;
read(0, buf, m);
write(1, buf, m);
n -= m;
}
}
void pad(int n)
{
char buf[PAGE];
int m;
memset(buf, 0, sizeof buf);
while (n > 0) {
m = sizeof buf;
if (m > n)
m = n;
write(1, buf, m);
n -= m;
}
}
/*
* See /sys/src/cmd/8l/span.c:/^asmlc
*/
void adjustlnpc(int v)
{
char buf[PAGE];
int n, s;
n = 0;
while (v) {
s = 127;
if (v < 127)
s = v;
buf[n++] = s+128;
if (n == sizeof buf) {
write(1, buf, n);
n = 0;
}
v -= s;
}
if (n > 0)
write(1, buf, n);
}
void
main(int argc, char **argv)
{
Fhdr fhdr;
long newtxtsz;
long newentry;
long newlnpcsz;
long prepad, postpad;
long flags;
flags = FLAG_VALID;
if (argc > 1 && strcmp(argv[1], "-p") == 0)
flags |= FLAG_PAE;
crackhdr(0, &fhdr);
newtxtsz = ((fhdr.txtsz+PLAN9HDR+PAGE-1)&~(PAGE-1)) - PLAN9HDR;
newentry = KZERO+PLAN9HDR;
prepad = fhdr.entry - newentry;
postpad = newtxtsz - fhdr.txtsz;
newtxtsz += prepad;
newlnpcsz = fhdr.lnpcsz;
if (newlnpcsz)
newlnpcsz += (prepad+126)/127;
/* plan 9 header */
lput(4*11*11+7); /* magic */
lput(newtxtsz); /* sizes */
lput(fhdr.datsz);
lput(fhdr.bsssz);
lput(fhdr.symsz); /* nsyms */
lput(newentry); /* va of entry */
lput(fhdr.sppcsz); /* sp offsets */
lput(newlnpcsz); /* line offsets */
/* xen header */
rput(0x336EC578); /* magic */
rput(flags); /* flags */
rput(-(0x336EC578+flags)); /* checksum */
rput(newentry); /* header_addr */
rput(KZERO); /* load_addr */
rput(KZERO+newtxtsz+fhdr.datsz); /* load_end_addr */
rput(KZERO+newtxtsz+fhdr.datsz+fhdr.bsssz); /* bss_end_addr */
rput(fhdr.entry); /* entry_addr */
pad(prepad-XENHDR);
seek(0, fhdr.txtoff, 0);
copy(fhdr.txtsz);
pad(postpad);
copy(fhdr.datsz);
copy(fhdr.symsz);
if (newlnpcsz) {
adjustlnpc(prepad);
copy(fhdr.lnpcsz);
}
exits(0);
}

157
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#include <u.h>
#include <libc.h>
#include "/sys/src/libmach/elf.h"
enum {
Page = 4096,
};
#define ROUND(n) ((n+Page-1)&~(Page-1))
Shdr isect, csect;
static ushort
GETS(void *a)
{
uchar *p = a;
return p[0] | p[1]<<8;
}
static ulong
GETL(void *a)
{
uchar *p = a;
return p[0] | p[1]<<8 | p[2]<<16 | p[3]<<24;
}
static void
PUTS(void *a, ushort v)
{
uchar *p = a;
p[0] = v;
p[1] = v>>8;
}
static void
PUTL(void *a, ulong v)
{
uchar *p = a;
p[0] = v;
p[1] = v>>8;
p[2] = v>>16;
p[3] = v>>24;
}
void
copy(int fin, int fout, ulong src, ulong dst, ulong size)
{
char buf[Page];
int n;
seek(fin, src, 0);
seek(fout, dst, 0);
n = Page;
while (size > 0) {
if (n > size)
n = size;
read(fin, buf, n);
write(fout, buf, n);
size -= n;
}
}
void
main(int argc, char **argv)
{
Ehdr e;
Shdr s;
Phdr p;
int efd, ofd, ns, i, n;
ulong shoff, off, noff, size, msize;
char *sname, *sval;
if (argc != 5)
sysfatal("Usage: xenelf input-elf-file output-elf-file section-name section-contents");
efd = open(argv[1], OREAD);
if (efd < 0)
sysfatal("%s: %r", argv[1]);
ofd = create(argv[2], OWRITE, 0666);
if (ofd < 0)
sysfatal("%s: %r", argv[2]);
sname = argv[3];
sval = argv[4];
read(efd, &e, sizeof e);
//if (e.shstrndx)
// sysfatal("section header string index already present");
/* page-align loadable segments in file */
ns = GETS(&e.phnum);
shoff = GETL(&e.phoff);
noff = shoff+ns*sizeof(Phdr);
noff = ROUND(noff);
for (i = 0; i < ns; i++) {
seek(efd, shoff+i*sizeof(Phdr), 0);
read(efd, &p, sizeof p);
off = GETL(&p.offset);
PUTL(&p.offset, noff);
size = GETL(&p.filesz);
copy(efd, ofd, off, noff, size);
if (GETL(&p.type) == LOAD) {
size = ROUND(size);
PUTL(&p.filesz, size);
if ((msize = GETL(&p.memsz)) != 0 && size > msize)
PUTL(&p.memsz, size);
} else {
/* memory size for symtab segment is actually line number table size */
msize = GETL(&p.memsz);
copy(efd, ofd, off+size, noff+size, msize);
noff += msize;
}
noff += size;
seek(ofd, shoff+i*sizeof(Phdr), 0);
write(ofd, &p, sizeof p);
}
/* append single-entry shstrndx */
PUTL(&isect.offset, seek(ofd, noff, 0));
n = strlen(sname);
PUTL(&isect.size, n+2);
write(ofd, sname+n, 1);
write(ofd, sname, n+1);
/* append comment section contents */
PUTL(&csect.name, 1);
PUTL(&csect.offset, seek(ofd, 0, 2));
n = strlen(sval);
PUTL(&csect.size, n+1);
write(ofd, sval, n+1);
/* copy existing section headers to end */
ns = 0; //GETS(&e.shnum);
shoff = GETL(&e.shoff);
PUTL(&e.shoff, seek(ofd, 0, 2));
for (i = 0; i < ns; i++) {
seek(efd, shoff+i*sizeof(Shdr), 0);
read(efd, &s, sizeof s);
seek(ofd, 0, 2);
write(ofd, &s, sizeof s);
}
/* append section header for comment section */
write(ofd, &csect, sizeof csect);
++ns;
/* append section header for shstrndx */
PUTS(&e.shstrndx, ns);
++ns;
write(ofd, &isect, sizeof isect);
/* rewrite elf header */
PUTS(&e.shentsize, sizeof(Shdr));
PUTS(&e.shnum, ns);
seek(ofd, 0, 0);
write(ofd, &e, sizeof e);
exits(0);
}

100
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/*
* Sharing page frames with other domains
*/
#include "u.h"
#include "../port/lib.h"
#include "mem.h"
#include "dat.h"
#include "fns.h"
enum {
Nframes = 1, // XXX don't increase this without setting up extra mappings in xengrant_init()
};
static struct {
Lock;
ushort free;
ushort *refs;
} refalloc;
static grant_entry_t *granttab;
void
xengrantinit(void)
{
gnttab_setup_table_t setup;
ulong frames[Nframes];
int nrefs, i;
setup.dom = DOMID_SELF;
setup.nr_frames = Nframes;
set_xen_guest_handle(setup.frame_list, frames);
if (HYPERVISOR_grant_table_op(GNTTABOP_setup_table, &setup, 1) != 0 || setup.status != 0)
panic("xen grant table setup");
granttab = (grant_entry_t*)mmumapframe(XENGRANTTAB, frames[0]);
nrefs = Nframes * BY2PG / sizeof(grant_entry_t);
refalloc.refs = (ushort*)malloc(nrefs*sizeof(ushort));
for (i = 0; i < nrefs; i++)
refalloc.refs[i] = i-1;
refalloc.free = nrefs-1;
}
static int
allocref(void)
{
int ref;
ilock(&refalloc);
ref = refalloc.free;
if (ref > 0)
refalloc.free = refalloc.refs[ref];
iunlock(&refalloc);
return ref;
}
static void
freeref(int ref)
{
ilock(&refalloc);
refalloc.refs[ref] = refalloc.free;
refalloc.free = ref;
iunlock(&refalloc);
}
int
xengrant(domid_t domid, ulong frame, int flags)
{
int ref;
grant_entry_t *gt;
if ((ref = allocref()) < 0)
panic("out of xengrant refs");
gt = &granttab[ref];
gt->frame = frame;
gt->domid = domid;
coherence();
gt->flags = flags;
return ref;
}
int
xengrantend(int ref)
{
grant_entry_t *gt;
int frame;
gt = &granttab[ref];
coherence();
if (gt->flags&GTF_accept_transfer) {
if ((gt->flags&GTF_transfer_completed) == 0)
panic("xengrantend transfer in progress");
} else {
if (gt->flags&(GTF_reading|GTF_writing))
panic("xengrantend frame in use");
}
coherence();
frame = gt->frame;
gt->flags = GTF_invalid;
freeref(ref);
return frame;
}

62
sys/src/9/xen/xenpcf Normal file
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dev
root netif
cons
uart
arch
env
pipe
proc
mnt
srv
shr
dup
rtc
ssl
tls
cap
kprof
fs
xenstore
ether netif
ip arp chandial ip ipv6 ipaux iproute netlog nullmedium pktmedium ptclbsum386 inferno
sd
link
etherxen
ethermedium
netdevmedium
loopbackmedium
misc
archxen
sdxen
uartxen
ip
tcp
udp
rudp
ipifc
icmp
icmp6
gre
ipmux
esp
il
port
int cpuserver = 0;
boot boot
tcp
local
bootdir
boot$CONF.out boot
/$objtype/bin/paqfs
/$objtype/bin/auth/factotum
bootfs.paq
xenstore

130
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#include <u.h>
#include <libc.h>
typedef ulong uint32_t;
enum xsd_sockmsg_type
{
XS_DEBUG,
XS_DIRECTORY,
XS_READ,
XS_GET_PERMS,
XS_WATCH,
XS_UNWATCH,
XS_TRANSACTION_START,
XS_TRANSACTION_END,
XS_INTRODUCE,
XS_RELEASE,
XS_GET_DOMAIN_PATH,
XS_WRITE,
XS_MKDIR,
XS_RM,
XS_SET_PERMS,
XS_WATCH_EVENT,
XS_ERROR,
XS_IS_DOMAIN_INTRODUCED
};
struct xsd_sockmsg
{
uint32_t type; /* XS_??? */
uint32_t req_id;/* Request identifier, echoed in daemon's response. */
uint32_t tx_id; /* Transaction id (0 if not related to a transaction). */
uint32_t len; /* Length of data following this. */
/* Generally followed by nul-terminated string(s). */
};
char*
xscmd(int fd, enum xsd_sockmsg_type cmd, char *s, char *val)
{
static char buf[512];
struct xsd_sockmsg *msg;
char *arg;
static ulong reqid = 1;
int n;
msg = (struct xsd_sockmsg*)buf;
arg = buf + sizeof(*msg);
if(cmd != XS_WATCH_EVENT){
msg->type = cmd;
msg->req_id = reqid++;
msg->tx_id = 0;
msg->len = strlen(s)+1;
if (val != 0) {
msg->len += strlen(val);
if (msg->type == XS_WATCH)
msg->len++;
}
strcpy(arg, s);
if (val != 0)
strcpy(arg+strlen(s)+1, val);
if (write(fd, buf, sizeof(*msg)+msg->len) < 0)
sysfatal("write: %r");
}
if ((n = read(fd, buf, sizeof(*msg))) != sizeof(*msg))
sysfatal("read hdr %d: %r", n);
fprint(2, "type %lud req_id %lud len %lud\n", msg->type, msg->req_id, msg->len);
if ((n = read(fd, arg, msg->len)) != msg->len)
sysfatal("read data %d: %r", n);
if (cmd == XS_DIRECTORY || cmd == XS_WATCH_EVENT) {
for (s = arg; s < arg+msg->len; s++) {
if (*s == 0) *s = ',';
else if (*s < 32) *s += '0';
}
}
arg[msg->len] = 0;
return arg;
}
void
usage(void)
{
sysfatal("Usage: xenstore [lrwdme] path [value]\n");
}
void
main(int argc, char *argv[])
{
int fd;
if (argc != 3 && argc != 4)
usage();
if(access("/dev/xenstore", AEXIST) < 0)
bind("#x", "/dev", MAFTER);
fd = open("/dev/xenstore", ORDWR);
if (fd < 0)
sysfatal("/dev/xenstore: %r");
switch (argv[1][0]) {
default:
usage();
break;
case 'r':
print("%s\n", xscmd(fd, XS_READ, argv[2], 0));
break;
case 'l':
print("%s\n", xscmd(fd, XS_DIRECTORY, argv[2], 0));
break;
case 'm':
print("%s\n", xscmd(fd, XS_MKDIR, argv[2], 0));
break;
case 'd':
print("%s\n", xscmd(fd, XS_RM, argv[2], 0));
break;
case 'w':
if (argc != 4)
usage();
print("%s\n", xscmd(fd, XS_WRITE, argv[2], argv[3]));
break;
case 'e':
if (argc != 4)
usage();
print("%s\n", xscmd(fd, XS_WATCH, argv[2], argv[3]));
close(fd);
fd = open("/dev/xenwatch", OREAD);
if (fd < 0)
sysfatal("/dev/xenwatch: %r");
for (;;)
print("%s\n", xscmd(fd, XS_WATCH_EVENT, 0, 0));
}
}

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/*
* xensystem.c
*
* TODO: we could handle mmu updates more efficiently by
* using a multicall.
* XXX perhaps we should check return values and panic on failure?
*/
#include "u.h"
#include "../port/lib.h"
#include "mem.h"
#include "dat.h"
#include "fns.h"
#include "io.h"
#include "ureg.h"
#define LOG(a)
/*
* These functions replace all the inlines that are used on Linux systems
*/
/* in xen.s */
int xencall1(int op);
int xencall2(int op, ulong arg1);
int xencall3(int op, ulong arg1, ulong arg2);
int xencall4(int op, ulong arg1, ulong arg2, ulong arg3);
int xencall5(int op, ulong arg1, ulong arg2, ulong arg3, ulong arg4);
int xencall6(int op, ulong arg1, ulong arg2, ulong arg3, ulong arg4, ulong arg5);
int
HYPERVISOR_update_va_mapping(ulong va, uvlong newval, ulong flags)
{
int ret;
ret = xencall5(__HYPERVISOR_update_va_mapping, va, newval, newval>>32, flags);
if(ret < 0)
panic("update_va_mapping failed");
return ret;
}
long
HYPERVISOR_set_timer_op(uvlong timeout)
{
ulong hi, lo;
hi = timeout>>32;
lo = timeout;
return xencall3(__HYPERVISOR_set_timer_op, lo, hi);
}
int
HYPERVISOR_set_trap_table(trap_info_t *table)
{
return xencall2(__HYPERVISOR_set_trap_table, (ulong)table);
}
int
HYPERVISOR_mmu_update(mmu_update_t *req, int count,
int *success_count, domid_t domid)
{
return xencall5(__HYPERVISOR_mmu_update, (ulong)req, count, (ulong)success_count, domid);
}
int
HYPERVISOR_mmuext_op(struct mmuext_op *op, int count, int *scount, domid_t domid)
{
return xencall5(__HYPERVISOR_mmuext_op, (ulong)op, count, (ulong)scount, domid);
}
int
HYPERVISOR_set_gdt(unsigned long *frame_list, int entries)
{
return xencall3(__HYPERVISOR_set_gdt, (ulong)frame_list, entries);
}
int
HYPERVISOR_stack_switch(ulong ss, ulong esp)
{
return xencall3(__HYPERVISOR_stack_switch, ss, esp);
}
/* XXX match evfunc and fsfunc prototypes? */
int
HYPERVISOR_set_callbacks(ulong evss, ulong evfunc, ulong fsss, ulong fsfunc)
{
return xencall5(__HYPERVISOR_set_callbacks, evss, evfunc, fsss, fsfunc);
}
int
HYPERVISOR_fpu_taskswitch(void)
{
return xencall1(__HYPERVISOR_fpu_taskswitch);
}
int
HYPERVISOR_yield(void)
{
return xencall3(__HYPERVISOR_sched_op, SCHEDOP_yield, 0);
}
int
HYPERVISOR_block(void)
{
return xencall3(__HYPERVISOR_sched_op, SCHEDOP_block, 0);
}
int
HYPERVISOR_shutdown(int reboot)
{
sched_shutdown_t arg;
arg.reason = reboot? SHUTDOWN_reboot : SHUTDOWN_poweroff;
return xencall3(__HYPERVISOR_sched_op, SCHEDOP_shutdown, (ulong)&arg);
}
int
HYPERVISOR_multicall(void *call_list, int nr_calls)
{
return xencall3(__HYPERVISOR_multicall, (ulong)call_list, nr_calls);
}
int
HYPERVISOR_event_channel_op(void *op)
{
return xencall2(__HYPERVISOR_event_channel_op, (ulong)op);
}
int
HYPERVISOR_xen_version(int cmd, void *arg)
{
return xencall3(__HYPERVISOR_xen_version, cmd, (ulong)arg);
}
int
HYPERVISOR_console_io(int cmd, int count, char *str)
{
return xencall4(__HYPERVISOR_console_io, cmd, count, (ulong)str);
}
int
HYPERVISOR_grant_table_op(int cmd, gnttab_setup_table_t *setup, int count)
{
return xencall4(__HYPERVISOR_grant_table_op, cmd, (ulong)setup, count);
}
int
HYPERVISOR_memory_op(int cmd, struct xen_memory_reservation *arg)
{
return xencall3(__HYPERVISOR_memory_op, cmd, (ulong)arg);
}
/*
* XXX this comment is leftover from old code. revisit and update.
*
* The use of 'barrier' in the following reflects their use as local-lock
* operations. Reentrancy must be prevented (e.g., __cli()) /before/ following
* critical operations are executed. All critical operatiosn must complete
* /before/ reentrancy is permitted (e.g., __sti()). Alpha architecture also
* includes these barriers, for example.
*/
/*
* conversions to machine page numbers, pages and addresses
*/
#define MFN(pa) (patomfn[(pa)>>PGSHIFT])
#define MFNPG(pa) ((uvlong)MFN(pa)<<PGSHIFT)
#define PA2MA(pa) (MFNPG(pa) | PGOFF(pa))
#define VA2MA(va) PA2MA(PADDR(va))
#define VA2MFN(va) MFN(PADDR(va))
ulong hypervisor_virt_start;
ulong xentop;
start_info_t *xenstart;
shared_info_t *HYPERVISOR_shared_info;
ulong *patomfn;
ulong *matopfn;
int
xenpdptpin(ulong va)
{
struct mmuext_op op;
ulong mfn;
mfn = MFN(PADDR(va));
LOG(dprint("pdptpin %lux %lux\n", va, mfn);)
print("pdptpin %lux %lux\n", va, mfn);
/* mark page readonly first */
HYPERVISOR_update_va_mapping(va, ((uvlong)mfn<<PGSHIFT)|PTEVALID, UVMF_INVLPG|UVMF_LOCAL);
/* L3 here refers to page directory pointer table (PAE mode) */
op.cmd = MMUEXT_PIN_L3_TABLE;
op.arg1.mfn = mfn;
if (HYPERVISOR_mmuext_op(&op, 1, 0, DOMID_SELF) == 0)
return 1;
HYPERVISOR_update_va_mapping(va, ((uvlong)mfn<<PGSHIFT)|PTEVALID|PTEWRITE, UVMF_INVLPG|UVMF_LOCAL);
return 0;
}
int
xenpgdpin(ulong va)
{
struct mmuext_op op;
ulong mfn;
mfn = MFN(PADDR(va));
LOG(dprint("pdpin %lux %lux\n", va, mfn);)
/* mark page readonly first */
HYPERVISOR_update_va_mapping(va, ((uvlong)mfn<<PGSHIFT)|PTEVALID, UVMF_INVLPG|UVMF_LOCAL);
/* to confuse you, L2 here refers to page directories */
op.cmd = MMUEXT_PIN_L2_TABLE;
op.arg1.mfn = mfn;
if (HYPERVISOR_mmuext_op(&op, 1, 0, DOMID_SELF) == 0)
return 1;
HYPERVISOR_update_va_mapping(va, ((uvlong)mfn<<PGSHIFT)|PTEVALID|PTEWRITE, UVMF_INVLPG|UVMF_LOCAL);
return 0;
}
int
xenptpin(ulong va)
{
struct mmuext_op op;
ulong mfn;
mfn = MFN(PADDR(va));
LOG(dprint("pin %lux %lux\n", va, mfn);)
/* mark page readonly first */
HYPERVISOR_update_va_mapping(va, ((uvlong)mfn<<PGSHIFT)|PTEVALID, UVMF_INVLPG|UVMF_LOCAL);
/* to confuse you, L1 here refers to page tables */
op.cmd = MMUEXT_PIN_L1_TABLE;
op.arg1.mfn = mfn;
if (HYPERVISOR_mmuext_op(&op, 1, 0, DOMID_SELF) == 0)
return 1;
HYPERVISOR_update_va_mapping(va, ((uvlong)mfn<<PGSHIFT)|PTEVALID|PTEWRITE, UVMF_INVLPG|UVMF_LOCAL);
return 0;
}
void
xenptunpin(ulong va)
{
struct mmuext_op op;
ulong mfn;
mfn = MFN(PADDR(va));
LOG(dprint("unpin %lux %lux\n", va, mfn);)
op.cmd = MMUEXT_UNPIN_TABLE;
op.arg1.mfn = mfn;
if(HYPERVISOR_mmuext_op(&op, 1, 0, DOMID_SELF)<0)
panic("xenptunpin va=%lux called from %lux", va, getcallerpc(&va));
/* mark page read-write */
HYPERVISOR_update_va_mapping(va, ((uvlong)mfn<<PGSHIFT)|PTEVALID|PTEWRITE, UVMF_INVLPG|UVMF_LOCAL);
}
void
xenptswitch(ulong pa)
{
struct mmuext_op op;
op.cmd = MMUEXT_NEW_BASEPTR;
op.arg1.mfn = MFN(pa);
if(HYPERVISOR_mmuext_op(&op, 1, 0, DOMID_SELF)<0)
panic("xenptswitch");
}
void
xentlbflush(void)
{
struct mmuext_op op;
op.cmd = MMUEXT_TLB_FLUSH_LOCAL;
HYPERVISOR_mmuext_op(&op, 1, 0, DOMID_SELF);
}
/* update a pte using a machine page frame number */
void
xenupdatema(ulong *ptr, uvlong val)
{
mmu_update_t u;
u.ptr = VA2MA(ptr);
u.val = val;
if(HYPERVISOR_mmu_update(&u, 1, 0, DOMID_SELF) < 0)
panic("xenupdatema - pte %lux value %llux (was %llux) called from %lux", (ulong)ptr, val, *(uvlong*)ptr, getcallerpc(&ptr));
}
/* update a pte using a guest "physical" page number */
void
xenupdate(ulong *ptr, ulong val)
{
mmu_update_t u;
u.ptr = VA2MA(ptr);
u.val = PA2MA(val);
if(HYPERVISOR_mmu_update(&u, 1, 0, DOMID_SELF) < 0)
panic("xenupdate - pte %lux value %lux (%llux) called from %lux", (ulong)ptr, val, PA2MA(val), getcallerpc(&ptr));
}
void
acceptframe(int ref, void *va)
{
ulong mfn;
mfn = xengrantend(ref);
if (mfn == 0)
panic("can't accept page frame");
LOG(dprint("acceptframe ref %d va %lux mfn %lux\n", ref, (ulong)va, mfn);)
VA2MFN(va) = mfn;
mmumapframe((ulong)va, mfn);
}
int
donateframe(int domid, void *va)
{
ulong mfn;
int ref;
ulong *pte;
struct xen_memory_reservation mem;
mfn = VA2MFN(va);
ref = xengrant(domid, mfn, GTF_accept_transfer);
LOG(dprint("grant transfer %lux (%lux) -> %d\n", (ulong)va, mfn, ref);)
pte = mmuwalk(m->pdb, (ulong)va, 2, 0);
xenupdatema(pte, 0);
set_xen_guest_handle(mem.extent_start, &mfn);
mem.nr_extents = 1;
mem.extent_order = 0;
mem.address_bits = 0;
mem.domid = DOMID_SELF;
if (HYPERVISOR_memory_op(XENMEM_decrease_reservation, &mem) != 1)
panic("XENMEM_decrease_reservation");
VA2MFN(va) = ~0;
return ref;
}
int
shareframe(int domid, void *va, int write)
{
ulong mfn;
int ref;
int flags;
mfn = VA2MFN(va);
flags = GTF_permit_access;
if (!write)
flags |= GTF_readonly;
ref = xengrant(domid, mfn, flags);
LOG(dprint("grant shared %lux (%lux) -> %d\n", (ulong)va, mfn, ref);)
return ref;
}
/*
* Upcall from hypervisor, entered with evtchn_upcall_pending masked.
*/
void
xenupcall(Ureg *ureg)
{
vcpu_info_t *vcpu;
shared_info_t *s;
ulong sel1, sel2, n1, n2, port;
ureg->ecode = 0;
s = HYPERVISOR_shared_info;
vcpu = &HYPERVISOR_shared_info->vcpu_info[0];
for (;;) {
vcpu->evtchn_upcall_pending = 0;
sel1 = xchgl((uint*)&vcpu->evtchn_pending_sel, 0);
while(sel1) {
n1 = ffs(sel1);
sel1 &= ~(1<<n1);
sel2 = xchgl((uint*)&s->evtchn_pending[n1], 0);
while(sel2) {
n2 = ffs(sel2);
sel2 &= ~(1<<n2);
port = (n1<<5) + n2;
ureg->trap = 100+port;
trap(ureg);
}
}
if (vcpu->evtchn_upcall_pending)
continue;
vcpu->evtchn_upcall_mask = 0;
if (vcpu->evtchn_upcall_pending == 0)
break;
vcpu->evtchn_upcall_mask = 1;
}
}
/*
* tbdf field is abused to distinguish virqs from channels:
*
* tbdf=BUSUNKNOWN -> irq is a virq to be bound to a channel
* tbdf=0 -> irq is a channel number
*/
int
xenintrenable(Vctl *v)
{
evtchn_op_t op;
uint port;
/* XXX locking? */
if (v->tbdf != BUSUNKNOWN) {
op.cmd = EVTCHNOP_bind_virq;
op.u.bind_virq.virq = v->irq;
op.u.bind_virq.vcpu = m->machno;
if(HYPERVISOR_event_channel_op(&op) != 0)
panic("xenintrenable: bind %d failed", v->irq);
port = op.u.bind_virq.port;
} else
port = v->irq;
if (port > 155)
return -1;
HYPERVISOR_shared_info->evtchn_mask[port/32] &= ~(1<<(port%32));
if(0)print("xenintrenable %s: irq %d port %d mask[%d] = %#lux\n", v->name, v->irq, port, port/32, HYPERVISOR_shared_info->evtchn_mask[port/32]);
return 100+port;
}
int
xenintrdisable(int irq)
{
USED(irq);
panic("xenintrdisable notyet\n");
return 0;
}
int
xenintrvecno(int irq)
{
return irq;
}
int
islo(void)
{
vcpu_info_t *cpu;
cpu = &HYPERVISOR_shared_info->vcpu_info[m->machno]; // XXX m->shared
return (cpu->evtchn_upcall_mask == 0);
}
/*
* Note: Portable code expects spllo <= spl* <= spldone for
* accounting purposes. Lets hope the compiler doesn't reorder
* us.
*/
int
spllo(void)
{
vcpu_info_t *cpu = &HYPERVISOR_shared_info->vcpu_info[m->machno]; // XXX m->shared
if(cpu->evtchn_upcall_mask == 0)
return 0;
m->splpc = 0;
cpu->evtchn_upcall_mask = 0;
/*
* If an event arrived while masked off,
* use a dummy call to trigger delivery
*/
if (cpu->evtchn_upcall_pending)
HYPERVISOR_xen_version(0, 0);
return 1;
}
int
splhi(void)
{
ulong dummy;
vcpu_info_t *cpu = &HYPERVISOR_shared_info->vcpu_info[m->machno]; // XXX m->shared
int oldmask;
oldmask = xchgb(&cpu->evtchn_upcall_mask, 1);
if (cpu->evtchn_upcall_mask != 1)
panic("xchgb");
/* XXX ad-hoc ¨getcallerpc" because we have no arguments */
m->splpc = (&dummy)[1];
return oldmask;
}
void
splx(int x)
{
if(x)
splhi();
else
spllo();
}
/* marker for profiling in portable code */
void
spldone(void)
{
}
/* allocate an event channel */
int
xenchanalloc(int dom)
{
evtchn_op_t op;
op.cmd = EVTCHNOP_alloc_unbound;
op.u.alloc_unbound.dom = DOMID_SELF;
op.u.alloc_unbound.remote_dom = dom;
if (HYPERVISOR_event_channel_op(&op) != 0)
panic("xenchanalloc");
return op.u.alloc_unbound.port;
}
/* notify over an event channel */
void
xenchannotify(int port)
{
evtchn_op_t op;
op.cmd = EVTCHNOP_send;
op.u.send.port = port;
HYPERVISOR_event_channel_op(&op);
}
void
halt(void)
{
extern int nrdy;
splhi();
if (nrdy) {
spllo();
return;
}
HYPERVISOR_block();
}
void
mb(void)
{
coherence();
}

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#include "u.h"
#include "../port/lib.h"
#include "mem.h"
#include "dat.h"
#include "fns.h"
#include "io.h"
static vcpu_time_info_t shadow[MAX_VIRT_CPUS]; // XXX should be in Mach
static ulong wallclock;
static ulong wallclocksystime;
/*
* Return a consistent set of time parameters.
*/
static vcpu_time_info_t *
getshadow(void)
{
vcpu_time_info_t *s, *t;
t = &HYPERVISOR_shared_info->vcpu_info[m->machno].time;
s = &shadow[m->machno]; // XXX place in mach struct
while(t->version != s->version) {
if (t->version&1)
continue;
s->version = t->version;
s->tsc_timestamp = t->tsc_timestamp;
s->system_time = t->system_time;
s->tsc_to_system_mul = t->tsc_to_system_mul;
s->tsc_shift = t->tsc_shift;
}
return s;
}
/* just get it from the shared info */
void
guesscpuhz(int) // XXX no arg!
{
vcpu_time_info_t *t;
t = getshadow();
m->cpuhz = (1000000000LL << 32) / t->tsc_to_system_mul;
if(t->tsc_shift < 0)
m->cpuhz <<= -t->tsc_shift;
else
m->cpuhz >>= t->tsc_shift;
m->cpumhz = m->cpuhz / 1000000L;
}
void
xentimerset(uvlong next)
{
uvlong soon;
soon = fastticks(0) + 100000;
if (next < soon)
next = soon;
HYPERVISOR_set_timer_op(next);
}
void
xentimerclock(Ureg* ureg, void*)
{
timerintr(ureg, 0);
}
void
xentimerenable(void)
{
intrenable(VIRQ_TIMER, xentimerclock, nil, 0, "Xen Timer");
}
uvlong
xentimerread(uvlong *hz)
{
uvlong x;
uvlong delta, sdelta;
vcpu_time_info_t *t;
t = getshadow();
cycles(&x);
delta = x - t->tsc_timestamp;
if (t->tsc_shift < 0)
delta >>= -t->tsc_shift;
else
delta <<= t->tsc_shift;
mul64fract(&sdelta, delta, t->tsc_to_system_mul);
x = t->system_time + sdelta;
if (HYPERVISOR_shared_info->wc_sec != wallclock) {
wallclock = HYPERVISOR_shared_info->wc_sec;
wallclocksystime = x;
}
if (hz)
*hz = 1000000000;
return x;
}
ulong
xenwallclock()
{
ulong elapsed;
elapsed = (ulong)((xentimerread(0) - wallclocksystime)/1000000000);
return wallclock + elapsed;
}
void
microdelay(int microsecs)
{
uvlong targ, hz;
targ = xentimerread(&hz);
targ += microsecs * hz / 1000000;
while(xentimerread(0) < targ)
continue;
}
void
delay(int millisecs)
{
microdelay(millisecs * 1000);
}
/*
* performance measurement ticks. must be low overhead.
* doesn't have to count over a second.
*/
ulong
perfticks(void)
{
uvlong x;
cycles(&x);
return x;
}