diff --git a/IntelFrameworkPkg/Include/Library/SmmLib.h b/IntelFrameworkPkg/Include/Library/SmmLib.h
index 2857afce29..b35a7ce692 100644
--- a/IntelFrameworkPkg/Include/Library/SmmLib.h
+++ b/IntelFrameworkPkg/Include/Library/SmmLib.h
@@ -77,4 +77,15 @@ IsRuntimeSoftwareSmi (
   VOID
   );
 
+/**
+
+  Clear APM SMI Status Bit; Set the EOS bit. 
+  
+**/
+
+VOID
+EFIAPI
+ClearSmi (
+  VOID
+  );
 #endif
diff --git a/IntelFrameworkPkg/Library/SmmLibNull/SmmLibNull.c b/IntelFrameworkPkg/Library/SmmLibNull/SmmLibNull.c
index fd7233a4b6..be13dd70b8 100644
--- a/IntelFrameworkPkg/Library/SmmLibNull/SmmLibNull.c
+++ b/IntelFrameworkPkg/Library/SmmLibNull/SmmLibNull.c
@@ -87,3 +87,17 @@ IsRuntimeSoftwareSmi (
   return FALSE;
 }
 
+/**
+
+  Clear APM SMI Status Bit; Set the EOS bit. 
+  
+**/
+
+VOID
+EFIAPI
+ClearSmi (
+  VOID
+  )
+{
+  return;
+}