[PATCH] IntelSiliconPkg/VTd: Use Legacy Mode Address Translation

["Sheng Wei" <w.sheng@intel.com>]

Only if ECAP_REG.SMTS == 0 and ECAP_REG.bit 24 == 1, use
 extended mode address translation.

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3826

Cc: Ray Ni <ray.ni@intel.com>
Cc: Rangasai V Chaganty <rangasai.v.chaganty@intel.com>
Cc: Jenny Huang <jenny.huang@intel.com>
Cc: Robert Kowalewski <robert.kowalewski@intel.com>
Signed-off-by: Sheng Wei <w.sheng@intel.com>
---
 .../Intel/IntelSiliconPkg/Feature/VTd/IntelVTdDmarPei/IntelVTdDmar.c    | 2 +-
 .../IntelSiliconPkg/Feature/VTd/IntelVTdDmarPei/TranslationTable.c      | 2 +-
 .../Intel/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/TranslationTable.c    | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/Silicon/Intel/IntelSiliconPkg/Feature/VTd/IntelVTdDmarPei/IntelVTdDmar.c b/Silicon/Intel/IntelSiliconPkg/Feature/VTd/IntelVTdDmarPei/IntelVTdDmar.c
index b30c44dc..180981eb 100644
--- a/Silicon/Intel/IntelSiliconPkg/Feature/VTd/IntelVTdDmarPei/IntelVTdDmar.c
+++ b/Silicon/Intel/IntelSiliconPkg/Feature/VTd/IntelVTdDmarPei/IntelVTdDmar.c
@@ -626,7 +626,7 @@ EnableVTdTranslationProtection (
 
     if (VtdUnitInfo->ExtRootEntryTable != 0) {
       DEBUG ((DEBUG_INFO, "EnableVtdDmar (%d) ExtRootEntryTable 0x%x\n", Index, VtdUnitInfo->ExtRootEntryTable));
-      Status = EnableDmar (VtdUnitInfo, VtdUnitInfo->ExtRootEntryTable);
+      Status = EnableDmar (VtdUnitInfo, VtdUnitInfo->ExtRootEntryTable | BIT11);
     } else {
       DEBUG ((DEBUG_INFO, "EnableVtdDmar (%d) RootEntryTable 0x%x\n", Index, VtdUnitInfo->RootEntryTable));
       Status = EnableDmar (VtdUnitInfo, VtdUnitInfo->RootEntryTable);
diff --git a/Silicon/Intel/IntelSiliconPkg/Feature/VTd/IntelVTdDmarPei/TranslationTable.c b/Silicon/Intel/IntelSiliconPkg/Feature/VTd/IntelVTdDmarPei/TranslationTable.c
index c94f4a85..b3e9519f 100644
--- a/Silicon/Intel/IntelSiliconPkg/Feature/VTd/IntelVTdDmarPei/TranslationTable.c
+++ b/Silicon/Intel/IntelSiliconPkg/Feature/VTd/IntelVTdDmarPei/TranslationTable.c
@@ -902,7 +902,7 @@ SetupTranslationTable (
         ASSERT(FALSE);
         Status = EFI_UNSUPPORTED;
       } else {
-        Status = CreateExtContextEntry (VtdUnitInfo);
+        Status = CreateContextEntry (VtdUnitInfo);
       }
     } else {
       if (VtdUnitInfo->ECapReg.Bits.DEP_24) {
diff --git a/Silicon/Intel/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/TranslationTable.c b/Silicon/Intel/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/TranslationTable.c
index 48e38d56..3e8cf9dd 100644
--- a/Silicon/Intel/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/TranslationTable.c
+++ b/Silicon/Intel/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/TranslationTable.c
@@ -389,7 +389,7 @@ SetupTranslationTable (
         ASSERT(FALSE);
         Status = EFI_UNSUPPORTED;
       } else {
-        Status = CreateExtContextEntry (Index);
+        Status = CreateContextEntry (Index);
       }
     } else {
       if (mVtdUnitInformation[Index].ECapReg.Bits.DEP_24) {
-- 
2.16.2.windows.1