Measure ExitBootServices failure case

Signed-off-by: Chao Zhang<chao.b.zhang@intel.com>
Reviewed-by: Dong Guo<guo.dong@intel.com>
Reviewed-by: Gao Liming<liming.gao@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13580 6f19259b-4bc3-4df7-8a09-765794883524

SecurityPkg/Tcg/TcgDxe/TcgDxe.c

@@ -23,6 +23,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #include <Guid/HobList.h>
 #include <Guid/TcgEventHob.h>
 #include <Guid/EventGroup.h>
+#include <Guid/EventExitBootServiceFailed.h>
 #include <Protocol/DevicePath.h>
 #include <Protocol/TcgService.h>
 #include <Protocol/AcpiTable.h>
@@ -1103,6 +1104,34 @@ OnExitBootServices (
   ASSERT_EFI_ERROR (Status);
 }
 
+/**
+  Exit Boot Services Failed Event notification handler.
+
+  Measure Failure of ExitBootServices.
+
+  @param[in]  Event     Event whose notification function is being invoked
+  @param[in]  Context   Pointer to the notification function's context
+
+**/
+VOID
+EFIAPI
+OnExitBootServicesFailed (
+  IN      EFI_EVENT                 Event,
+  IN      VOID                      *Context
+  )
+{
+  EFI_STATUS    Status;
+
+  //
+  // Measure Failure of ExitBootServices,
+  //
+  Status = TcgMeasureAction (
+             EFI_EXIT_BOOT_SERVICES_FAILED
+             );
+  ASSERT_EFI_ERROR (Status);
+
+}
+
 /**
   Get TPM Deactivated state.
 
@@ -1205,6 +1234,18 @@ DriverEntry (
                     &gEfiEventExitBootServicesGuid,
                     &Event
                     );
+
+    //
+    // Measure Exit Boot Service failed 
+    //
+    Status = gBS->CreateEventEx (
+                    EVT_NOTIFY_SIGNAL,
+                    TPL_NOTIFY,
+                    OnExitBootServicesFailed,
+                    NULL,
+                    &gEventExitBootServicesFailedGuid,
+                    &Event
+                    );
   }
 
   //

SecurityPkg/Tcg/TcgDxe/TcgDxe.inf

@@ -56,6 +56,7 @@
   gTcgEventEntryHobGuid
   gEfiEventReadyToBootGuid
   gEfiEventExitBootServicesGuid
+  gEventExitBootServicesFailedGuid              # ALWAYS_CONSUMED
 
 [Protocols]
   gEfiTcgProtocolGuid                           ## PRODUCES