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IntelSiliconPkg/VTdDxe: Clean up DXE flush memory.

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Make sure the context table are flush to memory.

Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
This commit is contained in:
Jiewen Yao
2017-09-20 16:33:15 +08:00
parent ba30d5f051
commit 73a2fe8b87
2 changed files with 9 additions and 4 deletions
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4
IntelSiliconPkg/Feature/VTd/IntelVTdDxe/TranslationTableEx.c
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@@ -73,7 +73,6 @@ CreateExtContextEntry (
ExtRootEntry->Bits.UpperContextTablePointerLo = (UINT32) RShiftU64 ((UINT64)(UINTN)Buffer, 12) + 1;
ExtRootEntry->Bits.UpperContextTablePointerHi = (UINT32) RShiftU64 (RShiftU64 ((UINT64)(UINTN)Buffer, 12) + 1, 20);
ExtRootEntry->Bits.UpperPresent = 1;
FlushPageTableMemory (VtdIndex, (UINTN)ExtRootEntry, sizeof(*ExtRootEntry));
Buffer = (UINT8 *)Buffer + EFI_PAGES_TO_SIZE (ContextPages);
}
@@ -93,9 +92,10 @@ CreateExtContextEntry (
ExtContextEntry->Bits.AddressWidth = 0x2;
break;
}
FlushPageTableMemory (VtdIndex, (UINTN)ExtContextEntry, sizeof(*ExtContextEntry));
}
FlushPageTableMemory (VtdIndex, (UINTN)mVtdUnitInformation[VtdIndex].ExtRootEntryTable, EFI_PAGES_TO_SIZE(EntryTablePages));
return EFI_SUCCESS;
}