xt-sys/exectos
xt-sys/exectos
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Refactor MMU for multi-paging support and add 5-Level paging #16

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harraiken wants to merge 35 commits from harraiken_mm into master
pull from: harraiken_mm
merge into: xt-sys:master
Conversation 0 Commits 35 Files Changed 42 +3 -3
1 changed files with 3 additions and 3 deletions
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Showing only changes of commit c3ece4f317 - Show all commits

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xtldr/modules/xtos_o/i686/memory.c
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@ -60,7 +60,7 @@ XtpMapHardwareMemoryPool(IN PXTBL_PAGE_MAPPING PageMap)
{
EFI_PHYSICAL_ADDRESS Address;
PHARDWARE_LEGACY_PTE LegacyPdeBase;
PHARDWARE_PTE PdeBase;
PHARDWARE_MODERN_PTE PdeBase;
EFI_STATUS Status;
/* Allocate memory */
@ -78,10 +78,10 @@ XtpMapHardwareMemoryPool(IN PXTBL_PAGE_MAPPING PageMap)
if(PageMap->PageMapLevel == 3)
{
/* Get PDE base address (PAE enabled) */
PdeBase = (PHARDWARE_PTE)(((PHARDWARE_PTE)PageMap->PtePointer)[MM_HARDWARE_VA_START >> MM_PPI_SHIFT].PageFrameNumber << MM_PAGE_SHIFT);
PdeBase = (PHARDWARE_MODERN_PTE)(((PHARDWARE_MODERN_PTE)PageMap->PtePointer)[MM_HARDWARE_VA_START >> MM_PPI_SHIFT].PageFrameNumber << MM_PAGE_SHIFT);
/* Make PDE valid */
RtlZeroMemory(&PdeBase[(MM_HARDWARE_VA_START >> MM_PDI_SHIFT) & 0x1FF], sizeof(HARDWARE_PTE));
RtlZeroMemory(&PdeBase[(MM_HARDWARE_VA_START >> MM_PDI_SHIFT) & 0x1FF], sizeof(HARDWARE_MODERN_PTE));
PdeBase[(MM_HARDWARE_VA_START >> MM_PDI_SHIFT) & 0x1FF].PageFrameNumber = Address >> MM_PAGE_SHIFT;
PdeBase[(MM_HARDWARE_VA_START >> MM_PDI_SHIFT) & 0x1FF].Valid = 1;
PdeBase[(MM_HARDWARE_VA_START >> MM_PDI_SHIFT) & 0x1FF].Writable = 1;