UefiCpuPkg/MpInitLib: Fix S3 resume hang issue.

[mirror_edk2.git] / UefiCpuPkg / Library / MpInitLib / MpLib.h

diff --git a/UefiCpuPkg/Library/MpInitLib/MpLib.h b/UefiCpuPkg/Library/MpInitLib/MpLib.h
index 6958080ac192c3146d59ad97144e7e8bf59edd6b..9d0b866d097962208437352f208eb1f80ff4d9b7 100644 (file)
--- a/UefiCpuPkg/Library/MpInitLib/MpLib.h
+++ b/UefiCpuPkg/Library/MpInitLib/MpLib.h
@@ -250,6 +250,15 @@ struct _CPU_MP_DATA {
   UINT32                         ProcessorFlags;\r
   UINT64                         MicrocodeDataAddress;\r
   UINT32                         MicrocodeRevision;\r
+\r
+  //\r
+  // Whether need to use Init-Sipi-Sipi to wake up the APs.\r
+  // Two cases need to set this value to TRUE. One is in HLT\r
+  // loop mode, the other is resume from S3 which loop mode\r
+  // will be hardcode change to HLT mode by PiSmmCpuDxeSmm \r
+  // driver.\r
+  //\r
+  BOOLEAN                        WakeUpByInitSipiSipi;\r
 };\r
 \r
 extern EFI_GUID mCpuInitMpLibHobGuid;\r