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Implement PFN database initialization and memory descriptor processing
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This commit is contained in:
Aiken Harris
2025-12-28 23:25:07 +01:00
parent 4593a89a9b
commit 0880a0f344
12 changed files with 841 additions and 0 deletions
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12
xtoskrnl/includes/mm/pfn.hh
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@@ -20,6 +20,7 @@ namespace MM
private:
STATIC PFN_NUMBER AvailablePages;
STATIC PLOADER_MEMORY_DESCRIPTOR FreeDescriptor;
STATIC MMPFNLIST FreePagesList;
STATIC ULONG_PTR HighestPhysicalPage;
STATIC ULONG_PTR LowestPhysicalPage;
STATIC ULONGLONG NumberOfPhysicalPages;
@@ -29,14 +30,25 @@ namespace MM
public:
STATIC XTAPI PFN_NUMBER AllocateBootstrapPages(IN PFN_NUMBER NumberOfPages);
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 XTAPI VOID ScanMemoryDescriptors(VOID);
private:
STATIC XTAPI VOID DecrementAvailablePages(VOID);
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 ScanPageTable(IN PMMPTE PointerPte,
ULONG Level);
};
}