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Initialize system PTE pools and implement reservation routines
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This commit is contained in:
Aiken Harris
2025-12-23 20:16:08 +01:00
parent 1e3917882c
commit 5012c8dc37
5 changed files with 332 additions and 0 deletions
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19
xtoskrnl/includes/mm/amd64/pte.hh
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@@ -18,6 +18,11 @@ namespace MM
class Pte
{
private:
STATIC MMPTE FirstSystemFreePte[MaximumPtePoolTypes];
STATIC PMMPTE SystemPteBase;
STATIC PMMPTE SystemPtesEnd[MaximumPtePoolTypes];
STATIC PMMPTE SystemPtesStart[MaximumPtePoolTypes];
STATIC ULONG TotalSystemFreePtes[MaximumPtePoolTypes];
STATIC MMPTE ValidPte;
public:
@@ -25,6 +30,7 @@ namespace MM
STATIC XTAPI ULONG GetPtesPerPage(VOID);
STATIC XTAPI PMMPTE GetSystemPteBaseAddress(VOID);
STATIC XTAPI VOID InitializePageTable(VOID);
STATIC XTAPI VOID InitializeSystemPteSpace(VOID);
STATIC XTAPI VOID MapP5E(PVOID StartAddress,
PVOID EndAddress,
PMMP5E TemplateP5e);
@@ -40,6 +46,19 @@ namespace MM
STATIC XTAPI VOID MapPXE(PVOID StartAddress,
PVOID EndAddress,
PMMPXE TemplatePxe);
STATIC XTAPI PMMPTE ReserveSystemPtes(IN ULONG NumberOfPtes,
IN MMSYSTEM_PTE_POOL_TYPE SystemPtePoolType,
IN ULONG Alignment);
private:
STATIC XTAPI BOOLEAN FindFreeCluster(IN ULONG NumberOfPtes,
IN MMSYSTEM_PTE_POOL_TYPE SystemPtePoolType,
OUT PMMPTE *FoundCluster,
OUT PMMPTE *PreviousClusterNode);
STATIC XTAPI ULONG GetClusterSize(IN PMMPTE Pte);
STATIC XTAPI VOID InitializeSystemPtePool(IN PMMPTE StartingPte,
IN ULONG NumberOfPtes,
IN MMSYSTEM_PTE_POOL_TYPE PoolType);
};
}