UefiCpuPkg/SmmCpuPlatformHookLibNull: Add new interface

This patch is to add IsPlatformLmceStatusCheck interface in SmmCpuPlatformHookLib. This new interface can used to check platform specific LMCE status check is needed. By default, it will return TRUE to allow LMCE status check. However, if a platform would like to skip LMCE status check due to any reason, platform can skip LMCE status check by return FALSE. Signed-off-by: Khor Swee Aun <[email protected]>
tianocore · Dec 18, 2024 · 4a01c67 · 4a01c67
1 parent d1fccbf
commit 4a01c67
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diff --git a/OvmfPkg/Library/SmmCpuPlatformHookLibQemu/SmmCpuPlatformHookLibQemu.c b/OvmfPkg/Library/SmmCpuPlatformHookLibQemu/SmmCpuPlatformHookLibQemu.c
@@ -131,3 +131,24 @@ SmmCpuPlatformHookBeforeMmiHandler (
 {
   return EFI_UNSUPPORTED;
 }
+
+/**
+  Checks if platform specifc LMCE status check is needed.
+
+  This function can be used to check platform specific LMCE status check is needed.
+  By default, it will return TRUE to allow LMCE status check. However,
+  if a platform would like to skip LMCE status check due to any reason, platform can
+  skip LMCE status check by return FALSE.
+
+  @retval TRUE     Platform LMCE status check is needed.
+  @retval FALSE    Platform LMCE status check is skipped.
+
+**/
+BOOLEAN
+EFIAPI
+IsPlatformLmceStatusCheck (
+  VOID
+  )
+{
+  return TRUE;
+}
diff --git a/UefiCpuPkg/Include/Library/SmmCpuPlatformHookLib.h b/UefiCpuPkg/Include/Library/SmmCpuPlatformHookLib.h
@@ -115,4 +115,21 @@ SmmCpuPlatformHookBeforeMmiHandler (
   VOID
   );
 
+/**
+  Checks if platform specifc LMCE status check is needed.
+
+  This function can be used to check platform specific LMCE status check is needed.
+  By default, it will return TRUE to allow LMCE status check. However,
+  if a platform would like to skip LMCE status check due to any reason, platform can
+  skip LMCE status check by return FALSE.
+
+  @retval TRUE     Platform LMCE status check is needed.
+  @retval FALSE    Platform LMCE status check is skipped.
+
+**/
+BOOLEAN
+EFIAPI
+IsPlatformLmceStatusCheck  (
+  VOID
+  );
 #endif
diff --git a/UefiCpuPkg/Library/SmmCpuPlatformHookLibNull/SmmCpuPlatformHookLibNull.c b/UefiCpuPkg/Library/SmmCpuPlatformHookLibNull/SmmCpuPlatformHookLibNull.c
@@ -118,3 +118,24 @@ SmmCpuPlatformHookBeforeMmiHandler (
 {
   return EFI_UNSUPPORTED;
 }
+
+/**
+  Checks if platform specifc LMCE status check is needed.
+
+  This function can be used to check platform specific LMCE status check is needed.
+  By default, it will return TRUE to allow LMCE status check. However,
+  if a platform would like to skip LMCE status check due to any reason, platform can
+  skip LMCE status check by return FALSE.
+
+  @retval TRUE     Platform LMCE status check is needed.
+  @retval FALSE    Platform LMCE status check is skipped.
+
+**/
+BOOLEAN
+EFIAPI
+IsPlatformLmceStatusCheck (
+  VOID
+  )
+{
+  return TRUE;
+}