[edk2-devel] [PATCH V1 2/6] OvmfPkg/TdxMailboxLib: Add NULL instance of TdxMailboxLib
Min Xu
min.m.xu at intel.com
Thu Dec 15 08:44:36 UTC 2022
From: Min M Xu <min.m.xu at intel.com>
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4172
TdxMailboxLib is designed only for TDX guest which arch is X64. This
patch set the VALID_ARCHITECTURES of TdxMailboxLib as X64.
Because in the following patches TdxMailboxLib will be included in
PlatformInitLib. While PlatformInitLib is imported by some X64 platforms
(for example AmdSevX64.dsc). So we need a NULL instance of TdxMailboxLib
which VALID_ARCHITECTURES is X64 as well. Based on this consideration
we design TdxMailboxLibNull.
Cc: Erdem Aktas <erdemaktas at google.com>
Cc: Gerd Hoffmann <kraxel at redhat.com>
Cc: James Bottomley <jejb at linux.ibm.com>
Cc: Jiewen Yao <jiewen.yao at intel.com>
Cc: Tom Lendacky <thomas.lendacky at amd.com>
Signed-off-by: Min Xu <min.m.xu at intel.com>
---
.../Library/TdxMailboxLib/TdxMailboxLib.inf | 7 ++--
.../TdxMailboxLib/TdxMailboxLibNull.inf | 34 +++++++++++++++++++
2 files changed, 36 insertions(+), 5 deletions(-)
create mode 100644 OvmfPkg/Library/TdxMailboxLib/TdxMailboxLibNull.inf
diff --git a/OvmfPkg/Library/TdxMailboxLib/TdxMailboxLib.inf b/OvmfPkg/Library/TdxMailboxLib/TdxMailboxLib.inf
index 3cf3690a16c7..e504bda0dd90 100644
--- a/OvmfPkg/Library/TdxMailboxLib/TdxMailboxLib.inf
+++ b/OvmfPkg/Library/TdxMailboxLib/TdxMailboxLib.inf
@@ -1,6 +1,6 @@
#/** @file
#
-# TBD
+# TdxMailbox Library
#
# Copyright (c) 2018, Intel Corporation. All rights reserved.<BR>
# Copyright (c) 2008, Apple Inc. All rights reserved.<BR>
@@ -19,12 +19,9 @@
LIBRARY_CLASS = TdxMailboxLib
#
-# VALID_ARCHITECTURES = X64 IA32
+# VALID_ARCHITECTURES = X64
#
-[Sources.IA32]
- TdxMailboxNull.c
-
[Sources.X64]
TdxMailbox.c
diff --git a/OvmfPkg/Library/TdxMailboxLib/TdxMailboxLibNull.inf b/OvmfPkg/Library/TdxMailboxLib/TdxMailboxLibNull.inf
new file mode 100644
index 000000000000..8380d9f4f6d8
--- /dev/null
+++ b/OvmfPkg/Library/TdxMailboxLib/TdxMailboxLibNull.inf
@@ -0,0 +1,34 @@
+#/** @file
+#
+# Null instance of TdxMailboxLib
+#
+# Copyright (c) 2018, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2008, Apple Inc. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+#
+#**/
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = TdxMailboxLibNull
+ FILE_GUID = 002a1265-a1a0-47cd-bc69-4342b147f57d
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = TdxMailboxLib
+
+#
+# VALID_ARCHITECTURES = IA32 X64
+#
+
+[Sources]
+ TdxMailboxNull.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ OvmfPkg/OvmfPkg.dec
+
+[LibraryClasses]
+ BaseLib
+ DebugLib
--
2.29.2.windows.2
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