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reactos/msvc6/ntoskrnl/mm_mminit_msvc.c
Aleksey Bragin b1adc9e47f Initial revision 
svn path=/trunk/; revision=8046
2004-02-06 08:21:52 +00:00

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/* $Id: mm_mminit_msvc.c,v 1.1 2004/02/06 08:22:01 fireball Exp $
*
* COPYRIGHT: See COPYING in the top directory
* PROJECT: ReactOS kernel
* FILE: ntoskrnl/mm/mminit.c
* PURPOSE: kernel memory managment initialization functions
* PROGRAMMER: David Welch (welch@cwcom.net)
* UPDATE HISTORY:
* Created 9/4/98
*/
/* INCLUDES *****************************************************************/
#include <ddk/ntddk.h>
#include <roscfg.h>
#include <internal/i386/segment.h>
#include <internal/mm.h>
#include <internal/ntoskrnl.h>
#include <internal/io.h>
#include <internal/ps.h>
#include <internal/pool.h>
#define NDEBUG
#include <internal/debug.h>
/* GLOBALS *****************************************************************/
/*
* Size of extended memory (kb) (fixed for now)
*/
#define EXTENDED_MEMORY_SIZE (3*1024*1024)
/*
* Compiler defined symbols
*/
#if defined(_MSC_VER)
#pragma intrinsic(strcmp)
static PIMAGE_SECTION_HEADER FindSection(const char* szSeg)
{
PIMAGE_NT_HEADERS NtHeader = RtlImageNtHeader((PVOID)KERNEL_BASE);
PIMAGE_SECTION_HEADER Section = IMAGE_FIRST_SECTION(NtHeader);
const int count = NtHeader->FileHeader.NumberOfSections;
int i;
for (i = 0; i < count; ++i, ++Section)
{
if (!strcmp(szSeg, Section->Name))
{
return Section;
}
}
return NULL;
}
static void* FindSegmentStart(const char* szSeg)
{
PIMAGE_SECTION_HEADER Section = FindSection(szSeg);
if (Section)
{
return (void*)(KERNEL_BASE + Section->VirtualAddress);
}
return NULL;
}
static void* FindSegmentEnd(const char* szSeg)
{
PIMAGE_SECTION_HEADER Section = FindSection(szSeg);
if (Section)
{
return (void*)(KERNEL_BASE + Section->VirtualAddress + Section->Misc.VirtualSize);
}
return NULL;
}
#endif // defined(_MSC_VER)
static BOOLEAN IsThisAnNtAsSystem = FALSE;
static MM_SYSTEM_SIZE MmSystemSize = MmSmallSystem;
static MEMORY_AREA* kernel_text_desc = NULL;
static MEMORY_AREA* kernel_init_desc = NULL;
static MEMORY_AREA* kernel_map_desc = NULL;
static MEMORY_AREA* kernel_kpcr_desc = NULL;
static MEMORY_AREA* kernel_data_desc = NULL;
static MEMORY_AREA* kernel_param_desc = NULL;
static MEMORY_AREA* kernel_pool_desc = NULL;
static MEMORY_AREA* kernel_shared_data_desc = NULL;
static MEMORY_AREA* kernel_mapped_low_mem_desc = NULL;
static MEMORY_AREA* MiKernelMapDescriptor = NULL;
static MEMORY_AREA* MiPagedPoolDescriptor = NULL;
PHYSICAL_ADDRESS MmSharedDataPagePhysicalAddress;
PVOID MiNonPagedPoolStart;
ULONG MiNonPagedPoolLength;
PVOID MiKernelMapStart;
ULONG MiKernelMapLength;
/* FUNCTIONS ****************************************************************/
/*
* @implemented
*/
BOOLEAN STDCALL MmIsThisAnNtAsSystem(VOID)
{
return(IsThisAnNtAsSystem);
}
/*
* @implemented
*/
MM_SYSTEM_SIZE STDCALL MmQuerySystemSize(VOID)
{
return(MmSystemSize);
}
VOID MiShutdownMemoryManager(VOID)
{
}
VOID INIT_FUNCTION
MmInitVirtualMemory(ULONG LastKernelAddress,
ULONG KernelLength)
/*
* FUNCTION: Intialize the memory areas list
* ARGUMENTS:
* bp = Pointer to the boot parameters
* kernel_len = Length of the kernel
*/
{
PVOID BaseAddress;
ULONG Length;
ULONG ParamLength = KernelLength;
NTSTATUS Status;
PHYSICAL_ADDRESS BoundaryAddressMultiple;
//ULONG i;
DPRINT("MmInitVirtualMemory(%x, %x)\n",LastKernelAddress, KernelLength);
BoundaryAddressMultiple.QuadPart = 0;
LastKernelAddress = PAGE_ROUND_UP(LastKernelAddress);
MmInitMemoryAreas();
/* Don't change the start of kernel map. Pte's must always exist for this region. */
MiKernelMapStart = (char*)LastKernelAddress + PAGE_SIZE;
MiKernelMapLength = MM_KERNEL_MAP_SIZE;
MiNonPagedPoolStart = (char*)MiKernelMapStart + MiKernelMapLength + PAGE_SIZE;
MiNonPagedPoolLength = MM_NONPAGED_POOL_SIZE;
MmPagedPoolBase = (char*)MiNonPagedPoolStart + MiNonPagedPoolLength + PAGE_SIZE;
MmPagedPoolSize = MM_PAGED_POOL_SIZE;
MiInitKernelMap();
MiInitializeNonPagedPool();
/*
* Setup the system area descriptor list
*/
BaseAddress = (PVOID)0xf0000000;
MmCreateMemoryArea(NULL,
MmGetKernelAddressSpace(),
MEMORY_AREA_SYSTEM,
&BaseAddress,
0x400000,
0,
&kernel_map_desc,
FALSE,
FALSE,
BoundaryAddressMultiple);
BaseAddress = (PVOID)KPCR_BASE;
MmCreateMemoryArea(NULL,
MmGetKernelAddressSpace(),
MEMORY_AREA_SYSTEM,
&BaseAddress,
PAGE_SIZE * MAXIMUM_PROCESSORS,
0,
&kernel_kpcr_desc,
FALSE,
FALSE,
BoundaryAddressMultiple);
BaseAddress = (PVOID)0xd0000000;
MmCreateMemoryArea(NULL,
MmGetKernelAddressSpace(),
MEMORY_AREA_SYSTEM,
&BaseAddress,
0x100000,
0,
&kernel_mapped_low_mem_desc,
FALSE,
FALSE,
BoundaryAddressMultiple);
BaseAddress = (PVOID)KERNEL_BASE;
Length = PAGE_ROUND_UP(((ULONG)FindSegmentEnd(".text"))) - KERNEL_BASE;
ParamLength = ParamLength - Length;
/*
* No need to lock the address space at this point since no
* other threads are running.
*/
MmCreateMemoryArea(NULL,
MmGetKernelAddressSpace(),
MEMORY_AREA_SYSTEM,
&BaseAddress,
Length,
0,
&kernel_text_desc,
FALSE,
FALSE,
BoundaryAddressMultiple);
// TODO: Here we REALLY should iterate the PE's sections and set protection
// accordingly for each and every one of them.
// NOTE This code ONLY works because of the assumption that the .text
// segment is the first in the PE, and the .reloc segment is the last.
// Link in a way to make this assumtion false, and the kernel won't work.
BaseAddress = (PVOID)PAGE_ROUND_UP(((ULONG)FindSegmentEnd(".text")));
Length = PAGE_ROUND_UP(((ULONG)FindSegmentStart(".reloc"))) - (ULONG_PTR)BaseAddress;
ParamLength = ParamLength - Length;
DPRINT1("Data Length %x\n",Length);
DPRINT1("Data BaseAddress %x\n",BaseAddress);
/*
* No need to lock the address space at this point since we are
* the only thread running.
*/
// For GCC-compiled, kernel_data_desc contains:
// .data, .edata, .idata, .bss and .rsrc. E.i. all but .text and .reloc
MmCreateMemoryArea(NULL,
MmGetKernelAddressSpace(),
MEMORY_AREA_SYSTEM,
&BaseAddress,
Length,
0,
&kernel_data_desc,
FALSE,
FALSE,
BoundaryAddressMultiple);
// BaseAddress = (PVOID)PAGE_ROUND_UP(((ULONG)FindSegmentEnd(".edata")));
BaseAddress = (PVOID)PAGE_ROUND_UP(((ULONG)FindSegmentStart(".reloc")));
Length = LastKernelAddress - (ULONG)BaseAddress;
// For GCC-compiled, kernel_param_desc contains .reloc
MmCreateMemoryArea(NULL,
MmGetKernelAddressSpace(),
MEMORY_AREA_SYSTEM,
&BaseAddress,
Length,
0,
&kernel_param_desc,
FALSE,
FALSE,
BoundaryAddressMultiple);
BaseAddress = MiNonPagedPoolStart;
MmCreateMemoryArea(NULL,
MmGetKernelAddressSpace(),
MEMORY_AREA_SYSTEM,
&BaseAddress,
MiNonPagedPoolLength,
0,
&kernel_pool_desc,
FALSE,
FALSE,
BoundaryAddressMultiple);
BaseAddress = MiKernelMapStart;
Status = MmCreateMemoryArea(NULL,
MmGetKernelAddressSpace(),
MEMORY_AREA_SYSTEM,
&BaseAddress,
MiKernelMapLength,
0,
&MiKernelMapDescriptor,
FALSE,
FALSE,
BoundaryAddressMultiple);
BaseAddress = MmPagedPoolBase;
Status = MmCreateMemoryArea(NULL,
MmGetKernelAddressSpace(),
MEMORY_AREA_PAGED_POOL,
&BaseAddress,
MmPagedPoolSize,
0,
&MiPagedPoolDescriptor,
FALSE,
FALSE,
BoundaryAddressMultiple);
MmInitializePagedPool();
/*
* Create the kernel mapping of the user/kernel shared memory.
*/
BaseAddress = (PVOID)KI_USER_SHARED_DATA;
Length = PAGE_SIZE;
MmCreateMemoryArea(NULL,
MmGetKernelAddressSpace(),
MEMORY_AREA_SYSTEM,
&BaseAddress,
Length,
0,
&kernel_shared_data_desc,
FALSE,
FALSE,
BoundaryAddressMultiple);
Status = MmRequestPageMemoryConsumer(MC_NPPOOL, TRUE,
&MmSharedDataPagePhysicalAddress);
Status = MmCreateVirtualMapping(NULL,
(PVOID)KI_USER_SHARED_DATA,
PAGE_READWRITE,
MmSharedDataPagePhysicalAddress,
TRUE);
if (!NT_SUCCESS(Status))
{
DbgPrint("Unable to create virtual mapping\n");
KEBUGCHECK(0);
}
RtlZeroMemory(BaseAddress, Length);
/*
*
*/
MmInitializeMemoryConsumer(MC_USER, MmTrimUserMemory);
}
VOID INIT_FUNCTION
MmInit1(ULONG FirstKrnlPhysAddr,
ULONG LastKrnlPhysAddr,
ULONG LastKernelAddress,
PADDRESS_RANGE BIOSMemoryMap,
ULONG AddressRangeCount,
ULONG MaxMem)
/*
* FUNCTION: Initalize memory managment
*/
{
ULONG i;
ULONG kernel_len;
#ifndef MP
extern unsigned int unmap_me, unmap_me2, unmap_me3;
#endif
DPRINT("MmInit1(FirstKrnlPhysAddr, %x, LastKrnlPhysAddr %x, LastKernelAddress %x)\n",
FirstKrnlPhysAddr,
LastKrnlPhysAddr,
LastKernelAddress);
if ((BIOSMemoryMap != NULL) && (AddressRangeCount > 0))
{
// If we have a bios memory map, recalulate the memory size
ULONG last = 0;
for (i = 0; i < AddressRangeCount; i++)
{
if (BIOSMemoryMap[i].Type == 1
&& (BIOSMemoryMap[i].BaseAddrLow + BIOSMemoryMap[i].LengthLow + PAGE_SIZE -1) / PAGE_SIZE > last)
{
last = (BIOSMemoryMap[i].BaseAddrLow + BIOSMemoryMap[i].LengthLow + PAGE_SIZE -1) / PAGE_SIZE;
}
}
if ((last - 256) * 4 > KeLoaderBlock.MemHigher)
{
KeLoaderBlock.MemHigher = (last - 256) * 4;
}
}
if (KeLoaderBlock.MemHigher >= (MaxMem - 1) * 1024)
{
KeLoaderBlock.MemHigher = (MaxMem - 1) * 1024;
}
/*
* FIXME: Set this based on the system command line
*/
MmSystemRangeStart = (PVOID)KERNEL_BASE; // 0xC0000000
MmUserProbeAddress = (PVOID)0x7fff0000;
MmHighestUserAddress = (PVOID)0x7ffeffff;
MmInitGlobalKernelPageDirectory();
/*
* Initialize memory managment statistics
*/
MmStats.NrTotalPages = 0;
MmStats.NrSystemPages = 0;
MmStats.NrUserPages = 0;
MmStats.NrReservedPages = 0;
MmStats.NrUserPages = 0;
MmStats.NrFreePages = 0;
MmStats.NrLockedPages = 0;
MmStats.PagingRequestsInLastMinute = 0;
MmStats.PagingRequestsInLastFiveMinutes = 0;
MmStats.PagingRequestsInLastFifteenMinutes = 0;
/*
* Initialize the kernel address space
*/
MmInitializeKernelAddressSpace();
/*
* Unmap low memory
*/
#ifndef MP
/* In SMP mode we unmap the low memory in MmInit3.
The APIC needs the mapping of the first pages
while the processors are starting up. */
MmDeletePageTable(NULL, 0);
#endif
/*
* Free all pages not used for kernel memory
* (we assume the kernel occupies a continuous range of physical
* memory)
*/
DPRINT("first krnl %x\nlast krnl %x\n",FirstKrnlPhysAddr,
LastKrnlPhysAddr);
/*
* Free physical memory not used by the kernel
*/
MmStats.NrTotalPages = KeLoaderBlock.MemHigher/4;
if (!MmStats.NrTotalPages)
{
DbgPrint("Memory not detected, default to 8 MB\n");
MmStats.NrTotalPages = 2048;
}
else
{
/* add 1MB for standard memory (not extended) */
MmStats.NrTotalPages += 256;
}
#ifdef BIOS_MEM_FIX
MmStats.NrTotalPages += 16;
#endif
DbgPrint("Used memory %dKb\n", (MmStats.NrTotalPages * PAGE_SIZE) / 1024);
LastKernelAddress = (ULONG)MmInitializePageList((PVOID)FirstKrnlPhysAddr,
(PVOID)LastKrnlPhysAddr,
MmStats.NrTotalPages,
PAGE_ROUND_UP(LastKernelAddress),
BIOSMemoryMap,
AddressRangeCount);
kernel_len = LastKrnlPhysAddr - FirstKrnlPhysAddr;
/*
* Create a trap for null pointer references and protect text
* segment
*/
CHECKPOINT;
#if defined(_MSC_VER)
DPRINT(".text start: %x, .data start: %x\n",
(int)FindSegmentStart(".text"),
(int)FindSegmentStart(".data"));
{
const char* pCode = FindSegmentStart(".text");
const char* pData = FindSegmentEnd(".text");
while (pCode < pData)
{
MmSetPageProtect(NULL, (PVOID)pCode, PAGE_EXECUTE_READ);
pCode += PAGE_SIZE;
}
}
#else
DPRINT("_text_start__ %x _init_end__ %x\n",(int)&_text_start__,(int)&_init_end__);
for (i=PAGE_ROUND_DOWN(((int)&_text_start__));
i<PAGE_ROUND_UP(((int)&_init_end__));i=i+PAGE_SIZE)
{
MmSetPageProtect(NULL,
(PVOID)i,
PAGE_EXECUTE_READ);
}
#endif
DPRINT("Invalidating between %x and %x\n",
LastKernelAddress, 0xc0600000);
for (i=(LastKernelAddress); i<0xc0600000; i+=PAGE_SIZE)
{
MmRawDeleteVirtualMapping((PVOID)(i));
}
DPRINT("Invalidating between %x and %x\n",
0xd0100000, 0xd0400000);
for (i=0xd0100000; i<0xd0400000; i+=PAGE_SIZE)
{
MmRawDeleteVirtualMapping((PVOID)(i));
}
DPRINT("Almost done MmInit()\n");
#ifndef MP
/* FIXME: This is broken in SMP mode */
#if !defined(_MSC_VER) // FIXME: I don't trust using this from MSVC yet!
MmDeleteVirtualMapping(NULL, (PVOID)&unmap_me, TRUE, NULL, NULL);
MmDeleteVirtualMapping(NULL, (PVOID)&unmap_me2, TRUE, NULL, NULL);
MmDeleteVirtualMapping(NULL, (PVOID)&unmap_me3, TRUE, NULL, NULL);
#endif // _MSC_VER
#endif
/*
* Intialize memory areas
*/
MmInitVirtualMemory(LastKernelAddress, kernel_len);
MmInitializeMdlImplementation();
}
VOID INIT_FUNCTION
MmInit2(VOID)
{
MmInitializeRmapList();
MmInitializePageOp();
MmInitSectionImplementation();
MmInitPagingFile();
}
VOID INIT_FUNCTION
MmInit3(VOID)
{
/*
* Unmap low memory
*/
#ifdef MP
/* In SMP mode we can unmap the low memory
if all processors are started. */
MmDeletePageTable(NULL, 0);
#endif
MmInitZeroPageThread();
MmCreatePhysicalMemorySection();
MiInitBalancerThread();
/*
* Initialise the modified page writer.
*/
MmInitMpwThread();
/* FIXME: Read parameters from memory */
}
VOID STATIC
MiFreeInitMemoryPage(PVOID Context, MEMORY_AREA* MemoryArea, PVOID Address,
PHYSICAL_ADDRESS PhysAddr, SWAPENTRY SwapEntry,
BOOLEAN Dirty)
{
assert(SwapEntry == 0);
if (PhysAddr.QuadPart != 0)
{
MmReleasePageMemoryConsumer(MC_NPPOOL, PhysAddr);
}
}
VOID
MiFreeInitMemory(VOID)
{
#if defined(_MSC_VER)
DPRINT1("Can not yet free .init memory for MSVC compiled kernel\n");
#else
MmLockAddressSpace(MmGetKernelAddressSpace());
MmFreeMemoryArea(MmGetKernelAddressSpace(),
(PVOID)&_init_start__,
PAGE_ROUND_UP((ULONG)&_init_end__) - (ULONG)_init_start__,
MiFreeInitMemoryPage,
NULL);
MmUnlockAddressSpace(MmGetKernelAddressSpace());
#endif
}
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