1 files changed, 15 insertions, 1 deletions
diff --git a/SecurityPkg/Tcg/Tcg2Smm/Tcg2TraditionalMm.c b/SecurityPkg/Tcg/Tcg2Smm/Tcg2TraditionalMm.c
index 514171c..f7d595e 100644
--- a/SecurityPkg/Tcg/Tcg2Smm/Tcg2TraditionalMm.c
+++ b/SecurityPkg/Tcg/Tcg2Smm/Tcg2TraditionalMm.c
@@ -9,7 +9,7 @@
 
   PhysicalPresenceCallback() and MemoryClearCallback() will receive untrusted input and do some check.
 
-Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2015 - 2024, Intel Corporation. All rights reserved.<BR>
 Copyright (c) Microsoft Corporation.
 SPDX-License-Identifier: BSD-2-Clause-Patent
 
@@ -59,6 +59,20 @@ IsBufferOutsideMmValid (
 }
 
 /**
+  This function checks if the required DTPM instance is TPM 2.0.
+
+  @retval TRUE  The required DTPM instance is equal to gEfiTpmDeviceInstanceTpm20DtpmGuid.
+  @retval FALSE The required DTPM instance is not equal to gEfiTpmDeviceInstanceTpm20DtpmGuid.
+**/
+BOOLEAN
+IsTpm20Dtpm (
+  VOID
+  )
+{
+  return CompareGuid (PcdGetPtr (PcdTpmInstanceGuid), &gEfiTpmDeviceInstanceTpm20DtpmGuid);
+}
+
+/**
   The driver's entry point.
 
   It install callbacks for TPM physical presence and MemoryClear, and locate