From 282122ec5fcd9f4dfdea777be2af3a028b401652 Mon Sep 17 00:00:00 2001
From: Stefan Berger <stefanb@linux.vnet.ibm.com>
Date: Fri, 24 Sep 2021 07:42:19 -0400
Subject: ArmVirtPkg/TPM: Add a NULL implementation of TpmPlatformHierarchyLib

Add a NULL implementation of the library class TpmPlatformHierarchyLib.

Link: https://bugzilla.tianocore.org/show_bug.cgi?id=3510
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
---
 .../PeiDxeTpmPlatformHierarchyLib.c                | 22 +++++++++++++++
 .../PeiDxeTpmPlatformHierarchyLib.inf              | 31 ++++++++++++++++++++++
 SecurityPkg/SecurityPkg.dsc                        |  1 +
 3 files changed, 54 insertions(+)
 create mode 100644 SecurityPkg/Library/PeiDxeTpmPlatformHierarchyLibNull/PeiDxeTpmPlatformHierarchyLib.c
 create mode 100644 SecurityPkg/Library/PeiDxeTpmPlatformHierarchyLibNull/PeiDxeTpmPlatformHierarchyLib.inf

(limited to 'SecurityPkg')

diff --git a/SecurityPkg/Library/PeiDxeTpmPlatformHierarchyLibNull/PeiDxeTpmPlatformHierarchyLib.c b/SecurityPkg/Library/PeiDxeTpmPlatformHierarchyLibNull/PeiDxeTpmPlatformHierarchyLib.c
new file mode 100644
index 0000000000..dfc8863830
--- /dev/null
+++ b/SecurityPkg/Library/PeiDxeTpmPlatformHierarchyLibNull/PeiDxeTpmPlatformHierarchyLib.c
@@ -0,0 +1,22 @@
+/** @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>
+
+/**
+  A NULL implementation of ConfigureTpmPlatformHierarchy.
+**/
+VOID
+EFIAPI
+ConfigureTpmPlatformHierarchy (
+  )
+{
+  /* do nothing */
+}
diff --git a/SecurityPkg/Library/PeiDxeTpmPlatformHierarchyLibNull/PeiDxeTpmPlatformHierarchyLib.inf b/SecurityPkg/Library/PeiDxeTpmPlatformHierarchyLibNull/PeiDxeTpmPlatformHierarchyLib.inf
new file mode 100644
index 0000000000..1b1e9ad592
--- /dev/null
+++ b/SecurityPkg/Library/PeiDxeTpmPlatformHierarchyLibNull/PeiDxeTpmPlatformHierarchyLib.inf
@@ -0,0 +1,31 @@
+### @file
+#   NULL 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                    = 1.27
+  BASE_NAME                      = BasePlatform
+  FILE_GUID                      = 8947A3F2-BfB4-45EF-968D-5C40C1CE6A58
+  MODULE_TYPE                    = BASE
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = TpmPlatformHierarchyLib|PEIM DXE_DRIVER
+
+[LibraryClasses]
+  BaseLib
+
+[Packages]
+  MdePkg/MdePkg.dec
+  SecurityPkg/SecurityPkg.dec
+
+[Sources]
+  PeiDxeTpmPlatformHierarchyLib.c
diff --git a/SecurityPkg/SecurityPkg.dsc b/SecurityPkg/SecurityPkg.dsc
index f1f678c492..37318c64c5 100644
--- a/SecurityPkg/SecurityPkg.dsc
+++ b/SecurityPkg/SecurityPkg.dsc
@@ -232,6 +232,7 @@
   SecurityPkg/Library/HashLibTpm2/HashLibTpm2.inf
 
   SecurityPkg/Library/PeiDxeTpmPlatformHierarchyLib/PeiDxeTpmPlatformHierarchyLib.inf
+  SecurityPkg/Library/PeiDxeTpmPlatformHierarchyLibNull/PeiDxeTpmPlatformHierarchyLib.inf
 
   #
   # TCG Storage.
-- 
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