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[freeldr] Never unmap hyperspace or HAL entries. Fixes boot problems with more than 1GB of RAM

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svn path=/trunk/; revision=44805
This commit is contained in:
Hervé Poussineau
2009-12-29 20:43:01 +00:00
parent b13b720381
commit 9d97bda0a9
1 changed files with 4 additions and 0 deletions
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4
reactos/boot/freeldr/freeldr/windows/i386/wlmemory.c
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@@ -208,6 +208,10 @@ MempUnmapPage(ULONG Page)
PHARDWARE_PTE KernelPT;
ULONG Entry = (Page >> 10) + (KSEG0_BASE >> 22);
/* Don't unmap hyperspace or HAL entries */
if (Entry == HYPER_SPACE_ENTRY || Entry == 1023)
return;
if (PDE[Entry].Valid)
{
KernelPT = (PHARDWARE_PTE)(PDE[Entry].PageFrameNumber << MM_PAGE_SHIFT);