eersoy93/exectos
1
0
Fork 0
forked from xt-sys/exectos
Code Pull Requests Activity

Correct VA masking in AMD64 page mapping functions

Browse Source
This commit is contained in:
Aiken Harris
2025-08-18 01:07:28 +02:00
parent d602038858
commit c409400cbf
3 changed files with 12 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
xtoskrnl/mm/amd64/pmap.c
View File

@@ -61,7 +61,7 @@ MmpGetP5eAddress(PVOID Address)
{
ULONGLONG Offset;
Offset = (((ULONGLONG)Address >> MM_P5I_SHIFT) << MM_PTE_SHIFT);
Offset = ((((ULONGLONG)Address & (((ULONGLONG)1 << MmpPageMapInfo.VaBits) - 1)) >> MM_P5I_SHIFT) << MM_PTE_SHIFT);
return (PMMP5E)((MmpPageMapInfo.P5eBase + Offset) * MmpPageMapInfo.Xpa);
}
@@ -81,7 +81,7 @@ MmpGetPdeAddress(PVOID Address)
{
ULONGLONG Offset;
Offset = (((ULONGLONG)Address >> MM_PDI_SHIFT) << MM_PTE_SHIFT);
Offset = ((((ULONGLONG)Address & (((ULONGLONG)1 << MmpPageMapInfo.VaBits) - 1)) >> MM_PDI_SHIFT) << MM_PTE_SHIFT);
return (PMMPDE)(MmpPageMapInfo.PdeBase + Offset);
}
@@ -101,7 +101,7 @@ MmpGetPpeAddress(PVOID Address)
{
ULONGLONG Offset;
Offset = (((ULONGLONG)Address >> MM_PPI_SHIFT) << MM_PTE_SHIFT);
Offset = ((((ULONGLONG)Address & (((ULONGLONG)1 << MmpPageMapInfo.VaBits) - 1)) >> MM_PPI_SHIFT) << MM_PTE_SHIFT);
return (PMMPPE)(MmpPageMapInfo.PpeBase + Offset);
}
@@ -121,7 +121,7 @@ MmpGetPteAddress(PVOID Address)
{
ULONGLONG Offset;
Offset = (((ULONGLONG)Address >> MM_PTI_SHIFT) << MM_PTE_SHIFT);
Offset = ((((ULONGLONG)Address & (((ULONGLONG)1 << MmpPageMapInfo.VaBits) - 1)) >> MM_PTI_SHIFT) << MM_PTE_SHIFT);
return (PMMPTE)(MmpPageMapInfo.PteBase + Offset);
}
@@ -141,7 +141,7 @@ MmpGetPxeAddress(PVOID Address)
{
ULONGLONG Offset;
Offset = (((ULONGLONG)Address >> MM_PXI_SHIFT) << MM_PTE_SHIFT);
Offset = ((((ULONGLONG)Address & (((ULONGLONG)1 << MmpPageMapInfo.VaBits) - 1)) >> MM_PXI_SHIFT) << MM_PTE_SHIFT);
return (PMMPXE)(MmpPageMapInfo.PxeBase + Offset);
}