1 files changed, 13 insertions, 0 deletions
diff --git a/MdePkg/Include/Library/BaseLib.h b/MdePkg/Include/Library/BaseLib.h
index bd3f9cfc60..57c5d220bd 100644
--- a/MdePkg/Include/Library/BaseLib.h
+++ b/MdePkg/Include/Library/BaseLib.h
@@ -7598,6 +7598,19 @@ AsmPrepareAndThunk16 (
   IN OUT  THUNK_CONTEXT             *ThunkContext
   );
 
+/**
+  Performs a serializing operation on all load-from-memory instructions that
+  were issued prior the AsmLfence function.
+
+  Executes a LFENCE instruction. This function is only available on IA-32 and x64.
+
+**/
+VOID
+EFIAPI
+AsmLfence (
+  VOID
+  );
+
 #endif
 #endif