From be91c7706958e822885ebec36b48483b142755cd Mon Sep 17 00:00:00 2001
From: "Gao, Liming" <liming.gao@intel.com>
Date: Wed, 5 Nov 2014 12:09:22 +0000
Subject: [PATCH] MdeModulePkg: Add InSmm() API in PiSmmCoreSmmServicesTableLib
 instance

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Gao, Liming <liming.gao@intel.com>
Reviewed-by: Fan, Jeff <jeff.fan@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16301 6f19259b-4bc3-4df7-8a09-765794883524
---
 .../PiSmmCoreSmmServicesTableLib.c            | 22 ++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/MdeModulePkg/Library/PiSmmCoreSmmServicesTableLib/PiSmmCoreSmmServicesTableLib.c b/MdeModulePkg/Library/PiSmmCoreSmmServicesTableLib/PiSmmCoreSmmServicesTableLib.c
index 1c81afdf6e..788fafae35 100644
--- a/MdeModulePkg/Library/PiSmmCoreSmmServicesTableLib/PiSmmCoreSmmServicesTableLib.c
+++ b/MdeModulePkg/Library/PiSmmCoreSmmServicesTableLib/PiSmmCoreSmmServicesTableLib.c
@@ -1,7 +1,7 @@
 /** @file
   SMM Core SMM Services Table Library.
 
-  Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
+  Copyright (c) 2010 - 2014, Intel Corporation. All rights reserved.<BR>
   This program and the accompanying materials
   are licensed and made available under the terms and conditions of the BSD License
   which accompanies this distribution.  The full text of the license may be found at
@@ -38,3 +38,23 @@ SmmCoreSmmServicesTableLibConstructor (
   gSmst = &gSmmCoreSmst;
   return EFI_SUCCESS;
 }
+
+/**
+  This function allows the caller to determine if the driver is executing in 
+  System Management Mode(SMM).
+
+  This function returns TRUE if the driver is executing in SMM and FALSE if the 
+  driver is not executing in SMM.
+
+  @retval  TRUE  The driver is executing in System Management Mode (SMM).
+  @retval  FALSE The driver is not executing in System Management Mode (SMM). 
+
+**/
+BOOLEAN
+EFIAPI
+InSmm (
+  VOID
+  )
+{
+  return TRUE;
+}