1 files changed, 37 insertions, 0 deletions
diff --git a/src/vendorcode/intel/edk2/edk2-stable202005/MdePkg/Include/Library/SmmServicesTableLib.h b/src/vendorcode/intel/edk2/edk2-stable202005/MdePkg/Include/Library/SmmServicesTableLib.h
new file mode 100644
index 0000000000..110d70b89c
--- /dev/null
+++ b/src/vendorcode/intel/edk2/edk2-stable202005/MdePkg/Include/Library/SmmServicesTableLib.h
@@ -0,0 +1,37 @@
+/** @file
+  Provides a service to retrieve a pointer to the SMM Services Table.
+  Only available to SMM module types.
+
+Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#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