Add a NULL implementation of the library class TpmPlatformHierarchyLib

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>

---
 .../PeiDxeTpmPlatformHierarchyLib.c           | 19 ++++++++++++
 .../PeiDxeTpmPlatformHierarchyLib.inf         | 31 +++++++++++++++++++
 2 files changed, 50 insertions(+)
 create mode 100644 OvmfPkg/Library/PeiDxeTpmPlatformHierarchyLibNull/PeiDxeTpmPlatformHierarchyLib.c
 create mode 100644 OvmfPkg/Library/PeiDxeTpmPlatformHierarchyLibNull/PeiDxeTpmPlatformHierarchyLib.inf

diff --git a/OvmfPkg/Library/PeiDxeTpmPlatformHierarchyLibNull/PeiDxeTpmPlatformHierarchyLib.c b/OvmfPkg/Library/PeiDxeTpmPlatformHierarchyLibNull/PeiDxeTpmPlatformHierarchyLib.c
new file mode 100644
index 0000000000..a4d38a1465
--- /dev/null
+++ b/OvmfPkg/Library/PeiDxeTpmPlatformHierarchyLibNull/PeiDxeTpmPlatformHierarchyLib.c
@@ -0,0 +1,19 @@
+/** @file
+    Null TPM Platform Hierarchy configuration library.
+
+    This library provides stub functions for customizing the TPM's Platform Hierarchy.
+
+    Copyright (c) 2021, IBM Corporation.
+    SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Uefi.h>
+
+VOID
+EFIAPI
+ConfigureTpmPlatformHierarchy (
+  )
+{
+  /* no nothing */
+}
diff --git a/OvmfPkg/Library/PeiDxeTpmPlatformHierarchyLibNull/PeiDxeTpmPlatformHierarchyLib.inf b/OvmfPkg/Library/PeiDxeTpmPlatformHierarchyLibNull/PeiDxeTpmPlatformHierarchyLib.inf
new file mode 100644
index 0000000000..f0c474d57c
--- /dev/null
+++ b/OvmfPkg/Library/PeiDxeTpmPlatformHierarchyLibNull/PeiDxeTpmPlatformHierarchyLib.inf
@@ -0,0 +1,31 @@
+### @file
+#
+#   TPM Platform Hierarchy configuration library.
+#
+#   This library provides functions for customizing the TPM's Platform Hierarchy
+#   Authorization Value (platformAuth) and Platform Hierarchy Authorization
+#   Policy (platformPolicy) can be defined through this function.
+#
+# Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) Microsoft Corporation.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+###
+
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = PeiDxeTpmPlatformHierarchyLibNull
+  FILE_GUID                      = 7794F92C-4E8E-4E57-9E4A-49A0764C7D73

+  MODULE_TYPE                    = PEIM
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = TpmPlatformHierarchyLib|PEIM DXE_DRIVER
+
+[LibraryClasses]
+  BaseLib
+
+[Packages]
+  MdePkg/MdePkg.dec
+
+[Sources]
+  PeiDxeTpmPlatformHierarchyLib.c
--
2.31.1