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

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harraiken merged 35 commits from harraiken_mm into master 2025-08-23 20:03:56 +02:00
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

6
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; EFI_PHYSICAL_ADDRESS Address;
PHARDWARE_LEGACY_PTE LegacyPdeBase; PHARDWARE_LEGACY_PTE LegacyPdeBase;
PHARDWARE_PTE PdeBase; PHARDWARE_MODERN_PTE PdeBase;
EFI_STATUS Status; EFI_STATUS Status;
/* Allocate memory */ /* Allocate memory */
@ -78,10 +78,10 @@ XtpMapHardwareMemoryPool(IN PXTBL_PAGE_MAPPING PageMap)
if(PageMap->PageMapLevel == 3) if(PageMap->PageMapLevel == 3)
{ {
/* Get PDE base address (PAE enabled) */ /* 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 */ /* 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].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].Valid = 1;
PdeBase[(MM_HARDWARE_VA_START >> MM_PDI_SHIFT) & 0x1FF].Writable = 1; PdeBase[(MM_HARDWARE_VA_START >> MM_PDI_SHIFT) & 0x1FF].Writable = 1;