diff options
| -rw-r--r-- | UefiCpuPkg/Library/MpInitLib/MpLib.c | 35 |
1 files changed, 24 insertions, 11 deletions
diff --git a/UefiCpuPkg/Library/MpInitLib/MpLib.c b/UefiCpuPkg/Library/MpInitLib/MpLib.c index f1f2840714..9560b39220 100644 --- a/UefiCpuPkg/Library/MpInitLib/MpLib.c +++ b/UefiCpuPkg/Library/MpInitLib/MpLib.c @@ -637,6 +637,28 @@ InitializeApData ( }
/**
+ This function place APs in Halt loop.
+
+ @param[in] CpuMpData Pointer to CPU MP Data
+**/
+VOID
+PlaceAPInHltLoop (
+ IN CPU_MP_DATA *CpuMpData
+ )
+{
+ while (TRUE) {
+ DisableInterrupts ();
+ if (CpuMpData->UseSevEsAPMethod) {
+ SevEsPlaceApHlt (CpuMpData);
+ } else {
+ CpuSleep ();
+ }
+
+ CpuPause ();
+ }
+}
+
+/**
This function will be called from AP reset code if BSP uses WakeUpAP.
@param[in] ExchangeInfo Pointer to the MP exchange info buffer
@@ -812,19 +834,10 @@ ApWakeupFunction ( // Place AP is specified loop mode
//
if (CpuMpData->ApLoopMode == ApInHltLoop) {
+ PlaceAPInHltLoop (CpuMpData);
//
- // Place AP in HLT-loop
+ // Never run here
//
- while (TRUE) {
- DisableInterrupts ();
- if (CpuMpData->UseSevEsAPMethod) {
- SevEsPlaceApHlt (CpuMpData);
- } else {
- CpuSleep ();
- }
-
- CpuPause ();
- }
}
while (TRUE) {
|