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- Fix an incorrect type of memory behind PDE, HAL mapping and kernel segment pagetables. They should be MemoryData. (and change allocation algorithm slightly).

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- With this change Windows 2003 boots up to the BSOD showing ACPI_BIOS_ERROR.

svn path=/trunk/; revision=32039
This commit is contained in:
Aleksey Bragin
2008-01-28 18:50:29 +00:00
parent 4ec56a71ac
commit 1d8a4b5828
1 changed files with 17 additions and 9 deletions
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reactos/boot/freeldr/freeldr/windows/wlmemory.c
+17 -9
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@@ -129,11 +129,23 @@ MempAllocatePageTables()
// Allocate memory block for all these things:
// PDE, HAL mapping page table, physical mapping, kernel mapping
// FIXME: PDE+HAL+KernelPTEs == FirmwarePermanent, Physical PTEs = FirmwareTemporary
TotalSize = (1+1+NumPageTables*2)*MM_PAGE_SIZE;
Buffer = MmAllocateMemoryWithType(TotalSize, LoaderFirmwarePermanent);
if (Buffer == NULL)
// Physical PTEs = FirmwareTemporary
PhysicalPageTablesBuffer = MmAllocateMemoryWithType(
NumPageTables*MM_PAGE_SIZE, LoaderFirmwareTemporary);
// PDE+HAL+KernelPTEs == MemoryData
Buffer = MmAllocateMemoryWithType(
TotalSize - NumPageTables*MM_PAGE_SIZE, LoaderMemoryData);
if (Buffer + (TotalSize - NumPageTables*MM_PAGE_SIZE) !=
PhysicalPageTablesBuffer)
{
DbgPrint((DPRINT_WINDOWS, "There was a problem allocating two adjacent blocks of memory!"));
}
if (Buffer == NULL || PhysicalPageTablesBuffer == NULL)
{
UiMessageBox("Impossible to allocate memory block for page tables!");
return FALSE;
@@ -158,12 +170,8 @@ MempAllocatePageTables()
PDE[1023].Valid = 1;
PDE[1023].Write = 1;
// Store pointers to the tables for easier access
PhysicalPageTablesBuffer = &Buffer[MM_PAGE_SIZE*2];
KernelPageTablesBuffer = PhysicalPageTablesBuffer + NumPageTables*MM_PAGE_SIZE;
// Mark physical PTE's buffer as FirmwareTemporary
//MmSetMemoryType(KernelPageTablesBuffer, NumPageTables*MM_PAGE_SIZE, LoaderFirmwareTemporary);
// Store pointer to the table for easier access
KernelPageTablesBuffer = &Buffer[MM_PAGE_SIZE*2];
// Zero counters of page tables used
PhysicalPageTables = 0;