diff options
Diffstat (limited to 'MdePkg/Include/Library')
-rw-r--r-- | MdePkg/Include/Library/SmmServicesTableLib.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/MdePkg/Include/Library/SmmServicesTableLib.h b/MdePkg/Include/Library/SmmServicesTableLib.h new file mode 100644 index 0000000000..b840ddf6f4 --- /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
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