Introduce helper functions for querying the software prototype and transition bits of PTE
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This commit is contained in:
2026-01-01 19:40:10 +01:00
parent 5ff0cad094
commit c080f74714
7 changed files with 149 additions and 1 deletions

View File

@@ -44,6 +44,8 @@ namespace MM
PMMPTE StartPte);
XTAPI ULONG GetPteOffset(IN PVOID Address);
XTAPI ULONG GetPteSize(VOID);
XTAPI ULONG GetPteSoftwarePrototype(IN PMMPTE PtePointer);
XTAPI ULONG GetPteSoftwareTransition(IN PMMPTE PtePointer);
VIRTUAL XTAPI PVOID GetPteVirtualAddress(IN PMMPTE PtePointer) = 0;
XTAPI PMMPXE GetPxeAddress(IN PVOID Address);
XTAPI ULONG GetPxeOffset(IN PVOID Address);

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@@ -41,6 +41,8 @@ namespace MM
STATIC XTAPI LONG GetPteDistance(PMMPTE EndPte,
PMMPTE StartPte);
STATIC XTAPI ULONG GetPteSize(VOID);
STATIC XTAPI ULONG GetPteSoftwarePrototype(IN PMMPTE PtePointer);
STATIC XTAPI ULONG GetPteSoftwareTransition(IN PMMPTE PtePointer);
STATIC XTAPI PVOID GetPteVirtualAddress(IN PMMPTE PtePointer);
STATIC XTAPI PMMPXE GetPxeAddress(IN PVOID Address);
STATIC XTAPI PVOID GetPxeVirtualAddress(IN PMMPXE PxePointer);

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@@ -41,6 +41,8 @@ namespace MM
VIRTUAL XTAPI LONG GetPteDistance(PMMPTE EndPte,
PMMPTE StartPte) = 0;
VIRTUAL XTAPI ULONG GetPteSize(VOID) = 0;
VIRTUAL XTAPI ULONG GetPteSoftwarePrototype(IN PMMPTE PtePointer) = 0;
VIRTUAL XTAPI ULONG GetPteSoftwareTransition(IN PMMPTE PtePointer) = 0;
VIRTUAL XTAPI PVOID GetPteVirtualAddress(IN PMMPTE PtePointer) = 0;
XTAPI BOOLEAN GetXpaStatus();
VIRTUAL XTAPI VOID InitializePageMapInfo(VOID) = 0;
@@ -77,6 +79,8 @@ namespace MM
XTAPI LONG GetPteDistance(PMMPTE EndPte,
PMMPTE StartPte);
XTAPI ULONG GetPteSize(VOID);
XTAPI ULONG GetPteSoftwarePrototype(IN PMMPTE PtePointer);
XTAPI ULONG GetPteSoftwareTransition(IN PMMPTE PtePointer);
XTAPI PVOID GetPteVirtualAddress(IN PMMPTE PtePointer);
XTAPI VOID InitializePageMapInfo(VOID);
XTAPI BOOLEAN PteValid(IN PMMPTE PtePointer);
@@ -111,6 +115,8 @@ namespace MM
XTAPI LONG GetPteDistance(PMMPTE EndPte,
PMMPTE StartPte);
XTAPI ULONG GetPteSize(VOID);
XTAPI ULONG GetPteSoftwarePrototype(IN PMMPTE PtePointer);
XTAPI ULONG GetPteSoftwareTransition(IN PMMPTE PtePointer);
XTAPI PVOID GetPteVirtualAddress(IN PMMPTE PtePointer);
XTAPI VOID InitializePageMapInfo(VOID);
XTAPI BOOLEAN PteValid(IN PMMPTE PtePointer);

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@@ -39,6 +39,8 @@ namespace MM
STATIC XTAPI LONG GetPteDistance(PMMPTE EndPte,
PMMPTE StartPte);
STATIC XTAPI ULONG GetPteSize(VOID);
STATIC XTAPI ULONG GetPteSoftwarePrototype(IN PMMPTE PtePointer);
STATIC XTAPI ULONG GetPteSoftwareTransition(IN PMMPTE PtePointer);
STATIC XTAPI PVOID GetPteVirtualAddress(IN PMMPTE PtePointer);
STATIC XTAPI BOOLEAN GetXpaStatus(VOID);
STATIC XTAPI VOID InitializePageMapSupport(VOID);

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@@ -363,6 +363,40 @@ MM::PageMap::GetPteSize(VOID)
return sizeof(MMPTE);
}
/**
* Gets the software prototype value of the corresponding Page Table Entry.
*
* @param PtePointer
* Specifies the address of the PTE.
*
* @return This routine returns the PTE software prototype value.
*
* @since XT 1.0
*/
XTAPI
ULONG
MM::PageMap::GetPteSoftwarePrototype(IN PMMPTE PtePointer)
{
return (ULONG)PtePointer->Software.Prototype;
}
/**
* Gets the software transition value of the corresponding Page Table Entry.
*
* @param PtePointer
* Specifies the address of the PTE.
*
* @return This routine returns the PTE software transition value.
*
* @since XT 1.0
*/
XTAPI
ULONG
MM::PageMap::GetPteSoftwareTransition(IN PMMPTE PtePointer)
{
return (ULONG)PtePointer->Software.Transition;
}
/**
* Gets the address of the PXE (Extended Page Entry), that maps given address.
*

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@@ -355,6 +355,40 @@ MM::PageMapBasic::GetPteSize(VOID)
return sizeof(MMPML2_PTE);
}
/**
* Gets the software prototype value of the corresponding Page Table Entry.
*
* @param PtePointer
* Specifies the address of the PTE.
*
* @return This routine returns the PTE software prototype value.
*
* @since XT 1.0
*/
XTAPI
ULONG
MM::PageMapBasic::GetPteSoftwarePrototype(IN PMMPTE PtePointer)
{
return (ULONG)PtePointer->Pml2.Software.Prototype;
}
/**
* Gets the software transition value of the corresponding Page Table Entry.
*
* @param PtePointer
* Specifies the address of the PTE.
*
* @return This routine returns the PTE software transition value.
*
* @since XT 1.0
*/
XTAPI
ULONG
MM::PageMapBasic::GetPteSoftwareTransition(IN PMMPTE PtePointer)
{
return (ULONG)PtePointer->Pml2.Software.Transition;
}
/**
* Gets the virtual address that is mapped by a given Page Table Entry.
*
@@ -505,7 +539,7 @@ MM::PageMapBasic::SetPte(IN PMMPTE PtePointer,
XTAPI
VOID
MM::PageMapBasic::SetPte(IN PMMPTE PtePointer,
IN ULONG_PTR Attributes)
IN ULONG_PTR Attributes)
{
PtePointer->Pml2.Long = Attributes;
}
@@ -743,6 +777,40 @@ MM::PageMapXpa::GetPteSize(VOID)
return sizeof(MMPML3_PTE);
}
/**
* Gets the software prototype value of the corresponding Page Table Entry.
*
* @param PtePointer
* Specifies the address of the PTE.
*
* @return This routine returns the PTE software prototype value.
*
* @since XT 1.0
*/
XTAPI
ULONG
MM::PageMapXpa::GetPteSoftwarePrototype(IN PMMPTE PtePointer)
{
return (ULONG)PtePointer->Pml3.Software.Prototype;
}
/**
* Gets the software transition value of the corresponding Page Table Entry.
*
* @param PtePointer
* Specifies the address of the PTE.
*
* @return This routine returns the PTE software transition value.
*
* @since XT 1.0
*/
XTAPI
ULONG
MM::PageMapXpa::GetPteSoftwareTransition(IN PMMPTE PtePointer)
{
return (ULONG)PtePointer->Pml3.Software.Transition;
}
/**
* Gets the virtual address that is mapped by a given Page Table Entry.
*

View File

@@ -366,6 +366,40 @@ MM::Paging::GetPteSize(VOID)
return PmlRoutines->GetPteSize();
}
/**
* Gets the software prototype value of the corresponding Page Table Entry.
*
* @param PtePointer
* Specifies the address of the PTE.
*
* @return This routine returns the PTE software prototype value.
*
* @since XT 1.0
*/
XTAPI
ULONG
MM::Paging::GetPteSoftwarePrototype(IN PMMPTE PtePointer)
{
return PmlRoutines->GetPteSoftwarePrototype(PtePointer);
}
/**
* Gets the software transition value of the corresponding Page Table Entry.
*
* @param PtePointer
* Specifies the address of the PTE.
*
* @return This routine returns the PTE software transition value.
*
* @since XT 1.0
*/
XTAPI
ULONG
MM::Paging::GetPteSoftwareTransition(IN PMMPTE PtePointer)
{
return PmlRoutines->GetPteSoftwareTransition(PtePointer);
}
/**
* Gets the virtual address that is mapped by a given Page Table Entry.
*