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Add MM::PageMap::GetXpaStatus() for querying PML level
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This commit is contained in:
Aiken Harris
2025-11-29 23:45:00 +01:00
parent 931586eebd
commit 4265ae92d0
2 changed files with 15 additions and 0 deletions
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1
xtoskrnl/includes/mm/i686/pagemap.hh
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@@ -39,6 +39,7 @@ namespace MM
XTAPI ULONG GetPteIndex(IN PVOID Address); XTAPI ULONG GetPteIndex(IN PVOID Address);
VIRTUAL XTAPI ULONG GetPteSize(VOID) = 0; VIRTUAL XTAPI ULONG GetPteSize(VOID) = 0;
XTAPI PVOID GetPteVirtualAddress(IN PMMPTE PtePointer); XTAPI PVOID GetPteVirtualAddress(IN PMMPTE PtePointer);
XTAPI BOOLEAN GetXpaStatus();
VIRTUAL XTAPI VOID InitializePageMapInfo(VOID) = 0; VIRTUAL XTAPI VOID InitializePageMapInfo(VOID) = 0;
VIRTUAL XTAPI BOOLEAN PteValid(IN PMMPTE PtePointer) = 0; VIRTUAL XTAPI BOOLEAN PteValid(IN PMMPTE PtePointer) = 0;
VIRTUAL XTAPI VOID SetNextEntry(IN PMMPTE Pte, VIRTUAL XTAPI VOID SetNextEntry(IN PMMPTE Pte,

14
xtoskrnl/mm/i686/pagemap.cc
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@@ -210,6 +210,20 @@ MM::PageMap::GetPteVirtualAddress(IN PMMPTE PtePointer)
return ((PVOID)((ULONG)(PtePointer) << 10)); return ((PVOID)((ULONG)(PtePointer) << 10));
} }
/**
* Gets the status of Extended Paging Address (XPA) mode.
*
* @return This routine returns TRUE if XPA is enabled, FALSE otherwise.
*
* @since XT 1.0
*/
XTAPI
BOOLEAN
MM::PageMap::GetXpaStatus()
{
return PageMapInfo.Xpa;
}
/** /**
* Advances a PTE pointer by a given number of entries, considering the actual PTE size for PML2. * Advances a PTE pointer by a given number of entries, considering the actual PTE size for PML2.
* *