1 files changed, 1 insertions, 1 deletions
diff --git a/UefiCpuPkg/Library/MpInitLib/MpLib.h b/UefiCpuPkg/Library/MpInitLib/MpLib.h
index 0c89f8a6e7..74e919dae0 100755
--- a/UefiCpuPkg/Library/MpInitLib/MpLib.h
+++ b/UefiCpuPkg/Library/MpInitLib/MpLib.h
@@ -661,7 +661,7 @@ GetProcessorNumber (
   This funtion will try to invoke platform specific microcode shadow logic to
   relocate microcode update patches into memory.
 
-  @param[in] CpuMpData  The pointer to CPU MP Data structure.
+  @param[in, out] CpuMpData  The pointer to CPU MP Data structure.
 
   @retval EFI_SUCCESS              Shadow microcode success.
   @retval EFI_OUT_OF_RESOURCES     No enough resource to complete the operation.