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Correct VA masking in AMD64 page mapping functions

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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
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6
xtoskrnl/mm/amd64/init.c
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@@ -36,6 +36,9 @@ MmInitializePageMapSupport(VOID)
MmpPageMapInfo.PpeBase = MM_PPE_LA57_BASE;
MmpPageMapInfo.PxeBase = MM_PXE_LA57_BASE;
MmpPageMapInfo.P5eBase = MM_P5E_LA57_BASE;
/* PML5 use 57-bit virtual addresses */
MmpPageMapInfo.VaBits = 57;
}
else
{
@@ -51,6 +54,9 @@ MmInitializePageMapSupport(VOID)
MmpPageMapInfo.PpeBase = MM_PPE_BASE;
MmpPageMapInfo.PxeBase = MM_PXE_BASE;
MmpPageMapInfo.P5eBase = 0x0;
/* PML use 48-bit virtual addresses */
MmpPageMapInfo.VaBits = 48;
}
}