UefiCpuPkg: Remove FIT based microcode shadow logic from MpInitLib.

[mirror_edk2.git] / UefiCpuPkg / Library / MpInitLib / DxeMpLib.c

diff --git a/UefiCpuPkg/Library/MpInitLib/DxeMpLib.c b/UefiCpuPkg/Library/MpInitLib/DxeMpLib.c
index b17e287bbf49c2e079fbbfd1f10fae75b076886c..a987c3210957c042b3616d34659c2f06aaeed066 100644 (file)
--- a/UefiCpuPkg/Library/MpInitLib/DxeMpLib.c
+++ b/UefiCpuPkg/Library/MpInitLib/DxeMpLib.c
@@ -1,7 +1,7 @@
 /** @file\r
   MP initialize support functions for DXE phase.\r
 \r
-  Copyright (c) 2016 - 2019, Intel Corporation. All rights reserved.<BR>\r
+  Copyright (c) 2016 - 2020, Intel Corporation. All rights reserved.<BR>\r
   SPDX-License-Identifier: BSD-2-Clause-Patent\r
 \r
 **/\r
@@ -816,3 +816,27 @@ MpInitLibEnableDisableAP (
 \r
   return Status;\r
 }\r
+\r
+/**\r
+  This funtion will try to invoke platform specific microcode shadow logic to\r
+  relocate microcode update patches into memory.\r
+\r
+  @param[in] CpuMpData  The pointer to CPU MP Data structure.\r
+\r
+  @retval EFI_SUCCESS              Shadow microcode success.\r
+  @retval EFI_OUT_OF_RESOURCES     No enough resource to complete the operation.\r
+  @retval EFI_UNSUPPORTED          Can't find platform specific microcode shadow\r
+                                   PPI/Protocol.\r
+**/\r
+EFI_STATUS\r
+PlatformShadowMicrocode (\r
+  IN OUT CPU_MP_DATA             *CpuMpData\r
+  )\r
+{\r
+  //\r
+  // There is no DXE version of platform shadow microcode protocol so far.\r
+  // A platform which only uses DxeMpInitLib instance could only supports\r
+  // the PCD based microcode shadowing.\r
+  //\r
+  return EFI_UNSUPPORTED;\r
+}\r