OvmfPkg/SmmCpuFeaturesLib: Check SmBase relocation supported or not

[mirror_edk2.git] / OvmfPkg / Library / SmmCpuFeaturesLib / SmmCpuFeaturesLib.c

diff --git a/OvmfPkg/Library/SmmCpuFeaturesLib/SmmCpuFeaturesLib.c b/OvmfPkg/Library/SmmCpuFeaturesLib/SmmCpuFeaturesLib.c
index 6693666d043f812767ef8682f009fd0f6f0e94fa..a1dd10c9f23bbb004586c8ed2d753b7fa29bb494 100644 (file)
--- a/OvmfPkg/Library/SmmCpuFeaturesLib/SmmCpuFeaturesLib.c
+++ b/OvmfPkg/Library/SmmCpuFeaturesLib/SmmCpuFeaturesLib.c
@@ -1,7 +1,7 @@
 /** @file\r
   The CPU specific programming for PiSmmCpuDxeSmm module.\r
 \r
-  Copyright (c) 2010 - 2015, Intel Corporation. All rights reserved.<BR>\r
+  Copyright (c) 2010 - 2023, Intel Corporation. All rights reserved.<BR>\r
 \r
   SPDX-License-Identifier: BSD-2-Clause-Patent\r
 **/\r
@@ -17,10 +17,12 @@
 #include <Library/SmmCpuFeaturesLib.h>\r
 #include <Library/SmmServicesTableLib.h>\r
 #include <Library/UefiBootServicesTableLib.h>\r
+#include <Library/HobLib.h>\r
 #include <Pcd/CpuHotEjectData.h>\r
 #include <PiSmm.h>\r
 #include <Register/Intel/SmramSaveStateMap.h>\r
 #include <Register/QemuSmramSaveStateMap.h>\r
+#include <Guid/SmmBaseHob.h>\r
 \r
 //\r
 // EFER register LMA bit\r
@@ -43,6 +45,12 @@ SmmCpuFeaturesLibConstructor (
   IN EFI_SYSTEM_TABLE  *SystemTable\r
   )\r
 {\r
+  //\r
+  // If gSmmBaseHobGuid found, means SmBase info has been relocated and recorded\r
+  // in the SmBase array. ASSERT it's not supported in OVMF.\r
+  //\r
+  ASSERT (GetFirstGuidHob (&gSmmBaseHobGuid) == NULL);\r
+\r
   //\r
   // No need to program SMRRs on our virtual platform.\r
   //\r