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OvmfPkg/TdxMailboxLib: Add NULL instance of TdxMailboxLib 

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@google.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
This commit is contained in:
Min M Xu 2022-12-20 16:42:36 +08:00 committed by mergify[bot]
parent a00b71b009
commit b21fe5a8a6
2 changed files with 36 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
OvmfPkg/Library/TdxMailboxLib/TdxMailboxLib.inf
View File

@ -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

34
OvmfPkg/Library/TdxMailboxLib/TdxMailboxLibNull.inf Normal file
View File

@ -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