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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 +2 -2
2 changed files with 2 additions and 2 deletions
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2
sdk/xtdk/amd64/mmtypes.h
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@ -30,7 +30,7 @@
#define MM_PDI_SHIFT 21 #define MM_PDI_SHIFT 21
#define MM_PPI_SHIFT 30 #define MM_PPI_SHIFT 30
#define MM_PXI_SHIFT 39 #define MM_PXI_SHIFT 39
#define MM_LA57_SHIFT 48 #define MM_P5I_SHIFT 48
/* Number of PTEs per page */ /* Number of PTEs per page */
#define MM_PTE_PER_PAGE 512 #define MM_PTE_PER_PAGE 512

2
xtldr/arch/amd64/memory.c
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@ -167,7 +167,7 @@ BlMapPage(IN PXTBL_PAGE_MAPPING PageMap,
while(NumberOfPages > 0) while(NumberOfPages > 0)
{ {
/* Calculate the indices in the various Page Tables from the virtual address */ /* Calculate the indices in the various Page Tables from the virtual address */
Pml5Entry = (VirtualAddress & ((ULONGLONG)0x1FF << MM_LA57_SHIFT)) >> MM_LA57_SHIFT; Pml5Entry = (VirtualAddress & ((ULONGLONG)0x1FF << MM_P5I_SHIFT)) >> MM_P5I_SHIFT;
Pml4Entry = (VirtualAddress & ((ULONGLONG)0x1FF << MM_PXI_SHIFT)) >> MM_PXI_SHIFT; Pml4Entry = (VirtualAddress & ((ULONGLONG)0x1FF << MM_PXI_SHIFT)) >> MM_PXI_SHIFT;
Pml3Entry = (VirtualAddress & ((ULONGLONG)0x1FF << MM_PPI_SHIFT)) >> MM_PPI_SHIFT; Pml3Entry = (VirtualAddress & ((ULONGLONG)0x1FF << MM_PPI_SHIFT)) >> MM_PPI_SHIFT;
Pml2Entry = (VirtualAddress & ((ULONGLONG)0x1FF << MM_PDI_SHIFT)) >> MM_PDI_SHIFT; Pml2Entry = (VirtualAddress & ((ULONGLONG)0x1FF << MM_PDI_SHIFT)) >> MM_PDI_SHIFT;