Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2025-01-01 03:54:02 +00:00
Code Issues Projects Releases Packages Wiki Activity

[NTOSKRNL]

Browse source 
- Implement Ke386IoSetAccessProcess, Ke386SetIoAccessMap, and Ke386QueryIoAccessMap
[NDK]
- Add definition of KIO_ACCESS_MAP

- Patch by Samuel Serapion
- Fixes bug 2641

svn path=/trunk/; revision=47108
This commit is contained in:
Cameron Gutman 2010-05-05 23:06:32 +00:00
parent ac293dd5d6
commit 8481a4f1b9
2 changed files with 68 additions and 14 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
reactos/include/ndk/i386/ketypes.h
View file

@ -151,6 +151,10 @@ Author:
(USHORT)(sizeof(KTSS)) : \
(USHORT)(FIELD_OFFSET(KTSS, IoMaps[MapNumber-1].IoMap))
typedef UCHAR KIO_ACCESS_MAP[IOPM_SIZE];
typedef KIO_ACCESS_MAP *PKIO_ACCESS_MAP;
//
// Size of the XMM register save area in the FXSAVE format
//

78
reactos/ntoskrnl/ke/i386/v86vdm.c
View file

@ -659,37 +659,87 @@ Ke386CallBios(IN ULONG Int,
}
/*
* @unimplemented
* @implemented
*/
BOOLEAN
NTAPI
Ke386IoSetAccessProcess(IN PKPROCESS Process,
IN ULONG Flag)
IN ULONG MapNumber)
{
UNIMPLEMENTED;
return FALSE;
USHORT MapOffset;
PKPRCB Prcb;
KAFFINITY TargetProcessors;
if(MapNumber > IOPM_COUNT)
return FALSE;
MapOffset = KiComputeIopmOffset(MapNumber);
Process->IopmOffset = MapOffset;
TargetProcessors = Process->ActiveProcessors;
Prcb = KeGetCurrentPrcb();
if (TargetProcessors & Prcb->SetMember)
KeGetPcr()->TSS->IoMapBase = MapOffset;
return TRUE;
}
/*
* @unimplemented
* @implemented
*/
BOOLEAN
NTAPI
Ke386SetIoAccessMap(IN ULONG Flag,
IN PVOID IopmBuffer)
Ke386SetIoAccessMap(IN ULONG MapNumber,
IN PKIO_ACCESS_MAP IopmBuffer)
{
UNIMPLEMENTED;
return FALSE;
PKPROCESS CurrentProcess;
PKPRCB Prcb;
PVOID pt;
if ((MapNumber > IOPM_COUNT) || (MapNumber == IO_ACCESS_MAP_NONE))
return FALSE;
Prcb = KeGetCurrentPrcb();
// Copy the IOP map and load the map for the current process.
pt = &(KeGetPcr()->TSS->IoMaps[MapNumber-1].IoMap);
RtlMoveMemory(pt, (PVOID)IopmBuffer, IOPM_SIZE);
CurrentProcess = Prcb->CurrentThread->ApcState.Process;
KeGetPcr()->TSS->IoMapBase = CurrentProcess->IopmOffset;
return TRUE;
}
/*
* @unimplemented
* @implemented
*/
BOOLEAN
NTAPI
Ke386QueryIoAccessMap(IN ULONG Flag,
IN PVOID IopmBuffer)
Ke386QueryIoAccessMap(IN ULONG MapNumber,
IN PKIO_ACCESS_MAP IopmBuffer)
{
UNIMPLEMENTED;
return FALSE;
ULONG i;
PVOID Map;
PUCHAR p;
if (MapNumber > IOPM_COUNT)
return FALSE;
if (MapNumber == IO_ACCESS_MAP_NONE)
{
// no access, simply return a map of all 1s
p = (PUCHAR)IopmBuffer;
for (i = 0; i < IOPM_SIZE; i++) {
p[i] = (UCHAR)-1;
}
}
else
{
// copy the bits
Map = (PVOID)&(KeGetPcr()->TSS->IoMaps[MapNumber-1].IoMap);
RtlMoveMemory((PVOID)IopmBuffer, Map, IOPM_SIZE);
}
return TRUE;
}