3 files changed, 74 insertions, 2 deletions
diff --git a/MdePkg/Include/Guid/EventGroup.h b/MdePkg/Include/Guid/EventGroup.h
index d601c05..47671f7 100644
--- a/MdePkg/Include/Guid/EventGroup.h
+++ b/MdePkg/Include/Guid/EventGroup.h
@@ -1,7 +1,7 @@
 /** @file
-  GUIDs for gBS->CreateEventEx Event Groups. Defined in UEFI spec 2.0.
+  GUIDs for gBS->CreateEventEx Event Groups. Defined in UEFI spec 2.0 and PI 1.2.
 
-  Copyright (c) 2006, Intel Corporation                                                         
+  Copyright (c) 2006 - 2009, Intel Corporation                                                         
   All rights reserved. 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        
@@ -39,5 +39,9 @@ extern EFI_GUID gEfiEventMemoryMapChangeGuid;
 
 extern EFI_GUID gEfiEventReadyToBootGuid;
 
+#define EFI_EVENT_GROUP_DXE_DISPATCH \
+  { 0x7081e22f, 0xcac6, 0x4053, { 0x94, 0x68, 0x67, 0x57, 0x82, 0xcf, 0x88, 0xe5 }}
+
+extern EFI_GUID gEfiEventDxeDispatchGuid;
 
 #endif
diff --git a/MdePkg/Include/Library/SmmServicesTableLib.h b/MdePkg/Include/Library/SmmServicesTableLib.h
new file mode 100644
index 0000000..b840ddf
--- /dev/null
+++ b/MdePkg/Include/Library/SmmServicesTableLib.h
@@ -0,0 +1,43 @@
+/** @file
+  Provides a service to retrieve a pointer to the SMM Services Table.
+  Only available to SMM module types.
+
+Copyright (c) 2009, Intel Corporation
+All rights reserved. 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
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef __SMM_SERVICES_TABLE_LIB_H__
+#define __SMM_SERVICES_TABLE_LIB_H__
+
+#include <PiSmm.h>
+
+///
+/// Cache pointer to the SMM Services Table
+///
+extern EFI_SMM_SYSTEM_TABLE2   *gSmst;
+
+/**
+  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
+  );
+
+#endif
diff --git a/MdePkg/Include/PiSmm.h b/MdePkg/Include/PiSmm.h
new file mode 100644
index 0000000..2e9c84c
--- /dev/null
+++ b/MdePkg/Include/PiSmm.h
@@ -0,0 +1,25 @@
+/** @file
+
+  Root include file for Mde Package SMM modules.
+
+Copyright (c) 2009, Intel Corporation
+All rights reserved. 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
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef __PI_SMM_H__
+#define __PI_SMM_H__
+
+#include <Uefi/UefiBaseType.h>
+#include <Uefi/UefiSpec.h>
+
+#include <Pi/PiSmmCis.h>
+
+#endif
+