OvmfPkg/Library: Impl SmmCpuPlatformHookBeforeMmiHandler func

This patch is to add SmmCpuPlatformHookBeforeMmiHandler func
for OVMF.

Signed-off-by: Jiaxin Wu <jiaxin.wu@intel.com>

1 files changed, 19 insertions, 1 deletions

diff --git a/OvmfPkg/Library/SmmCpuPlatformHookLibQemu/SmmCpuPlatformHookLibQemu.c b/OvmfPkg/Library/SmmCpuPlatformHookLibQemu/SmmCpuPlatformHookLibQemu.c
index 4df057101e..cab7d90bcc 100644
--- a/OvmfPkg/Library/SmmCpuPlatformHookLibQemu/SmmCpuPlatformHookLibQemu.c
+++ b/OvmfPkg/Library/SmmCpuPlatformHookLibQemu/SmmCpuPlatformHookLibQemu.c
@@ -2,7 +2,7 @@
 SMM CPU Platform Hook library instance for QEMU.

 

 Copyright (c) 2020, Red Hat, Inc.

-Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>

+Copyright (c) 2006 - 2024, Intel Corporation. All rights reserved.<BR>

 SPDX-License-Identifier: BSD-2-Clause-Patent

 

 **/

@@ -113,3 +113,21 @@ GetPlatformPageTableAttribute (
 {

   return EFI_UNSUPPORTED;

 }

+

+/**

+  SMM CPU Platform Hook before executing MMI Handler.

+

+  This function can be used to perform the platform specific items before executing MMI Handler.

+

+  @retval EFI_SUCCESS      The smm cpu platform hook before executing MMI Handler is executed successfully.

+  @retval EFI_UNSUPPORTED  The smm cpu platform hook before executing MMI Handler is unsupported.

+

+**/

+EFI_STATUS

+EFIAPI

+SmmCpuPlatformHookBeforeMmiHandler (

+  VOID

+  )

+{

+  return EFI_UNSUPPORTED;

+}