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[freeldr]

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- Do not use GetSystemMemorySize(), which truncates size to 32 bit.
- Other minor changes.

svn path=/trunk/; revision=44974
This commit is contained in:
Dmitry Gorbachev 2010-01-06 11:44:54 +00:00
parent a71c3f0d12
commit 15269e4b77
6 changed files with 14 additions and 34 deletions
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1
reactos/boot/freeldr/freeldr/.cvsignore
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@ -1 +0,0 @@
obj

2
reactos/boot/freeldr/freeldr/cache/cache.c vendored
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@ -89,7 +89,7 @@ BOOLEAN CacheInitializeDrive(ULONG DriveNumber)
CacheManagerDrive.BlockSize = MachDiskGetCacheableBlockCount(DriveNumber);
CacheBlockCount = 0;
CacheSizeLimit = GetSystemMemorySize() / 8;
CacheSizeLimit = TotalPagesInLookupTable / 8 * MM_PAGE_SIZE;
CacheSizeCurrent = 0;
if (CacheSizeLimit < (64 * 1024))
{

1
reactos/boot/freeldr/freeldr/include/mm.h
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@ -104,7 +104,6 @@ VOID MmUpdateLastFreePageHint(PVOID PageLookupTable, ULONG TotalPageCount); // S
BOOLEAN MmAreMemoryPagesAvailable(PVOID PageLookupTable, ULONG TotalPageCount, PVOID PageAddress, ULONG PageCount); // Returns TRUE if the specified pages of memory are available, otherwise FALSE
VOID MmSetMemoryType(PVOID MemoryAddress, ULONG MemorySize, TYPE_OF_MEMORY NewType); // Use with EXTREME caution!
ULONG GetSystemMemorySize(VOID); // Returns the amount of total memory in the system
PPAGE_LOOKUP_TABLE_ITEM MmGetMemoryMap(ULONG *NoEntries); // Returns a pointer to the memory mapping table and a number of entries in it

5
reactos/boot/freeldr/freeldr/mm/mm.c
View file

@ -337,11 +337,6 @@ VOID DumpMemoryAllocMap(VOID)
}
#endif // DBG
ULONG GetSystemMemorySize(VOID)
{
return (TotalPagesInLookupTable * MM_PAGE_SIZE);
}
PPAGE_LOOKUP_TABLE_ITEM MmGetMemoryMap(ULONG *NoEntries)
{
PPAGE_LOOKUP_TABLE_ITEM RealPageLookupTable = (PPAGE_LOOKUP_TABLE_ITEM)PageLookupTableAddress;

33
reactos/boot/freeldr/freeldr/windows/i386/wlmemory.c
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@ -53,13 +53,13 @@ MempAllocatePageTables()
// Max number of entries = MaxPageNum >> 10
// FIXME: This is a number to describe ALL physical memory
// and windows doesn't expect ALL memory mapped...
NumPageTables = (GetSystemMemorySize() >> MM_PAGE_SHIFT) >> 10;
NumPageTables = TotalPagesInLookupTable >> 10;
DPRINTM(DPRINT_WINDOWS, "NumPageTables = %d\n", NumPageTables);
// Allocate memory block for all these things:
// PDE, HAL mapping page table, physical mapping, kernel mapping
TotalSize = (1+1+NumPageTables*2)*MM_PAGE_SIZE;
TotalSize = (1 + 1 + NumPageTables * 2) * MM_PAGE_SIZE;
// PDE+HAL+KernelPTEs == MemoryData
Buffer = MmAllocateMemoryWithType(TotalSize, LoaderMemoryData);
@ -141,7 +141,7 @@ MempAllocatePTE(ULONG Entry, PHARDWARE_PTE *PhysicalPT, PHARDWARE_PTE *KernelPT)
BOOLEAN
MempSetupPaging(IN ULONG StartPage,
IN ULONG NumberOfPages)
IN ULONG NumberOfPages)
{
PHARDWARE_PTE PhysicalPT;
PHARDWARE_PTE KernelPT;
@ -163,7 +163,7 @@ MempSetupPaging(IN ULONG StartPage,
//
// Now actually set up the page tables for identity mapping
//
for (Page=StartPage; Page < StartPage+NumberOfPages; Page++)
for (Page = StartPage; Page < StartPage + NumberOfPages; Page++)
{
Entry = Page >> 10;
@ -177,26 +177,13 @@ MempSetupPaging(IN ULONG StartPage,
KernelPT = (PHARDWARE_PTE)(PDE[Entry+(KSEG0_BASE >> 22)].PageFrameNumber << MM_PAGE_SHIFT);
}
if (Page == 0)
{
PhysicalPT[Page & 0x3ff].PageFrameNumber = Page;
PhysicalPT[Page & 0x3ff].Valid = 0;
PhysicalPT[Page & 0x3ff].Write = 0;
PhysicalPT[Page & 0x3ff].PageFrameNumber = Page;
PhysicalPT[Page & 0x3ff].Valid = (Page != 0);
PhysicalPT[Page & 0x3ff].Write = (Page != 0);
KernelPT[Page & 0x3ff].PageFrameNumber = Page;
KernelPT[Page & 0x3ff].Valid = 0;
KernelPT[Page & 0x3ff].Write = 0;
}
else
{
PhysicalPT[Page & 0x3ff].PageFrameNumber = Page;
PhysicalPT[Page & 0x3ff].Valid = 1;
PhysicalPT[Page & 0x3ff].Write = 1;
KernelPT[Page & 0x3ff].PageFrameNumber = Page;
KernelPT[Page & 0x3ff].Valid = 1;
KernelPT[Page & 0x3ff].Write = 1;
}
KernelPT[Page & 0x3ff].PageFrameNumber = Page;
KernelPT[Page & 0x3ff].Valid = (Page != 0);
KernelPT[Page & 0x3ff].Write = (Page != 0);
}
return TRUE;

6
reactos/boot/freeldr/freeldr/windows/wlmemory.c
View file

@ -184,7 +184,7 @@ MempAddMemoryBlock(IN OUT PLOADER_PARAMETER_BLOCK LoaderBlock,
MadCount++;
//
// Map it (don't map low 1Mb because it was already contigiously
// Map it (don't map low 1Mb because it was already contiguously
// mapped in WinLdrTurnOnPaging)
//
if (BasePage >= 0x100)
@ -255,7 +255,7 @@ WinLdrTurnOnPaging(IN OUT PLOADER_PARAMETER_BLOCK LoaderBlock,
DPRINTM(DPRINT_WINDOWS, "Got memory map with %d entries\n", NoEntries);
// Always contigiously map low 1Mb of memory
// Always contiguously map low 1Mb of memory
Status = MempSetupPaging(0, 0x100);
if (!Status)
{
@ -270,7 +270,7 @@ WinLdrTurnOnPaging(IN OUT PLOADER_PARAMETER_BLOCK LoaderBlock,
PagesCount = 1;
LastPageIndex = 0;
LastPageType = MemoryMap[0].PageAllocated;
for(i=1;i<NoEntries;i++)
for (i = 1; i < NoEntries; i++)
{
// Check if its memory map itself
if (i >= MemoryMapStartPage &&