IntelSiliconPkg/VTdDxe: Change EBS Event TPL to CALLBACK.

Change ExitBootServices TPL to CALLBACK, so that a device
can disable BME before IOMMU grants access right.

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>

diff --git a/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmaProtection.c b/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmaProtection.c
index f5de01f3806cc35a87cac2311049c77b00272a75..4a4d82e7f1069664219226653cda0b6e6a80852a 100644 (file)
--- a/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmaProtection.c
+++ b/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmaProtection.c
@@ -483,7 +483,7 @@ InitializeDmaProtection (
 \r
   Status = gBS->CreateEventEx (\r
                   EVT_NOTIFY_SIGNAL,\r
-                  TPL_NOTIFY,\r
+                  TPL_CALLBACK,\r
                   OnExitBootServices,\r
                   NULL,\r
                   &gEfiEventExitBootServicesGuid,\r
@@ -492,7 +492,7 @@ InitializeDmaProtection (
   ASSERT_EFI_ERROR (Status);\r
 \r
   Status = EfiCreateEventLegacyBootEx (\r
-             TPL_NOTIFY,\r
+             TPL_CALLBACK,\r
              OnLegacyBoot,\r
              NULL,\r
              &LegacyBootEvent\r