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Implement logic to link physical pages to PTEs
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This commit is contained in:
Aiken Harris
2025-12-29 18:31:16 +01:00
parent 0d2d41dcda
commit 4a00179af2
3 changed files with 286 additions and 15 deletions
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25
xtoskrnl/includes/mm/pfn.hh
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@@ -19,22 +19,33 @@ namespace MM
{
private:
STATIC PFN_NUMBER AvailablePages;
STATIC MMPFNLIST BadPagesList;
STATIC PLOADER_MEMORY_DESCRIPTOR FreeDescriptor;
STATIC MMPFNLIST FreePagesList;
STATIC ULONG_PTR HighestPhysicalPage;
STATIC PVOID HighestUserAddress;
STATIC ULONG_PTR LowestPhysicalPage;
STATIC MMPFNLIST ModifiedPagesList;
STATIC MMPFNLIST ModifiedReadOnlyPagesList;
STATIC ULONGLONG NumberOfPhysicalPages;
STATIC LOADER_MEMORY_DESCRIPTOR OriginalFreeDescriptor;
STATIC PMMPFNLIST PageLocationList[];
STATIC PFN_NUMBER PfnDatabaseSize;
STATIC MMPFNLIST StandbyPagesList;
STATIC MMPFNLIST ZeroedPagesList;
public:
STATIC XTAPI PFN_NUMBER AllocateBootstrapPages(IN PFN_NUMBER NumberOfPages);
STATIC XTAPI PFN_NUMBER AllocatePhysicalPage(IN ULONG Color);
STATIC XTAPI VOID ComputePfnDatabaseSize(VOID);
STATIC XTAPI ULONG_PTR GetHighestPhysicalPage(VOID);
STATIC XTAPI ULONGLONG GetNumberOfPhysicalPages(VOID);
STATIC XTAPI PFN_NUMBER GetPfnDatabaseSize(VOID);
STATIC XTAPI PMMPFN GetPfnEntry(IN PFN_NUMBER Pfn);
STATIC XTAPI VOID InitializePfnDatabase(VOID);
STATIC VOID XTAPI LinkPfnToPte(IN PFN_NUMBER PageFrameIndex,
IN PMMPTE PointerPte,
IN BOOLEAN Modified);
STATIC XTAPI VOID ScanMemoryDescriptors(VOID);
private:
@@ -42,13 +53,15 @@ namespace MM
STATIC XTAPI VOID IncrementAvailablePages(VOID);
STATIC XTAPI VOID InitializePageTablePfns(VOID);
STATIC XTAPI VOID LinkFreePage(IN PFN_NUMBER PageFrameIndex);
STATIC XTAPI VOID LinkPfnForPageTable(PFN_NUMBER PageFrameIndex,
PMMPTE PointerPte);
STATIC XTAPI VOID ProcessMemoryDescriptor(PFN_NUMBER BasePage,
PFN_NUMBER PageCount,
LOADER_MEMORY_TYPE MemoryType);
STATIC XTAPI VOID LinkPfnForPageTable(IN PFN_NUMBER PageFrameIndex,
IN PMMPTE PointerPte);
STATIC XTAPI VOID ProcessMemoryDescriptor(IN PFN_NUMBER BasePage,
IN PFN_NUMBER PageCount,
IN LOADER_MEMORY_TYPE MemoryType);
STATIC XTAPI VOID ScanPageTable(IN PMMPTE PointerPte,
ULONG Level);
IN ULONG Level);
STATIC XTAPI PFN_NUMBER UnlinkFreePage(IN PFN_NUMBER PageFrameIndex,
IN ULONG Color);
};
}