diff options
3 files changed, 10 insertions, 5 deletions
diff --git a/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmaProtection.c b/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmaProtection.c index 6052a0aebe..37b3b19bce 100644 --- a/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmaProtection.c +++ b/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmaProtection.c @@ -412,6 +412,9 @@ AcpiNotificationFunc ( Status = GetDmarAcpiTable ();
if (EFI_ERROR (Status)) {
+ if (Status == EFI_ALREADY_STARTED) {
+ gBS->CloseEvent (Event);
+ }
return;
}
SetupVtd ();
diff --git a/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmaProtection.h b/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmaProtection.h index 0886647ea6..519a5ab004 100644 --- a/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmaProtection.h +++ b/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmaProtection.h @@ -302,8 +302,9 @@ FindVtdIndexByPciDevice ( /**
Get the DMAR ACPI table.
- @retval EFI_SUCCESS The DMAR ACPI table is got.
- @retval EFI_NOT_FOUND The DMAR ACPI table is not found.
+ @retval EFI_SUCCESS The DMAR ACPI table is got.
+ @retval EFI_ALREADY_STARTED The DMAR ACPI table has been got previously.
+ @retval EFI_NOT_FOUND The DMAR ACPI table is not found.
**/
EFI_STATUS
GetDmarAcpiTable (
diff --git a/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmarAcpiTable.c b/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmarAcpiTable.c index 81dec10967..ce350bafbe 100644 --- a/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmarAcpiTable.c +++ b/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmarAcpiTable.c @@ -978,8 +978,9 @@ FindAcpiPtr ( /**
Get the DMAR ACPI table.
- @retval EFI_SUCCESS The DMAR ACPI table is got.
- @retval EFI_NOT_FOUND The DMAR ACPI table is not found.
+ @retval EFI_SUCCESS The DMAR ACPI table is got.
+ @retval EFI_ALREADY_STARTED The DMAR ACPI table has been got previously.
+ @retval EFI_NOT_FOUND The DMAR ACPI table is not found.
**/
EFI_STATUS
GetDmarAcpiTable (
@@ -990,7 +991,7 @@ GetDmarAcpiTable ( EFI_STATUS Status;
if (mAcpiDmarTable != NULL) {
- return EFI_SUCCESS;
+ return EFI_ALREADY_STARTED;
}
AcpiTable = NULL;
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