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-rw-r--r--SecurityPkg/VariableAuthenticated/RuntimeDxe/VariableSmmRuntimeDxe.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/SecurityPkg/VariableAuthenticated/RuntimeDxe/VariableSmmRuntimeDxe.c b/SecurityPkg/VariableAuthenticated/RuntimeDxe/VariableSmmRuntimeDxe.c
index be5c935a88..e87e12fc99 100644
--- a/SecurityPkg/VariableAuthenticated/RuntimeDxe/VariableSmmRuntimeDxe.c
+++ b/SecurityPkg/VariableAuthenticated/RuntimeDxe/VariableSmmRuntimeDxe.c
@@ -1019,6 +1019,7 @@ VariableSmmRuntimeInitialize (
VOID *SmmVariableWriteRegistration;
EFI_EVENT OnReadyToBootEvent;
EFI_EVENT ExitBootServiceEvent;
+ EFI_EVENT LegacyBootEvent;
EfiInitializeLock (&mVariableServicesLock, TPL_NOTIFY);
@@ -1087,6 +1088,17 @@ VariableSmmRuntimeInitialize (
);
//
+ // Register the event to inform SMM variable that it is at runtime for legacy boot.
+ // Reuse OnExitBootServices() here.
+ //
+ EfiCreateEventLegacyBootEx(
+ TPL_NOTIFY,
+ OnExitBootServices,
+ NULL,
+ &LegacyBootEvent
+ );
+
+ //
// Register the event to convert the pointer for runtime.
//
gBS->CreateEventEx (