diff options
Diffstat (limited to 'UefiCpuPkg/Library/MpInitLib/MpLib.c')
| -rw-r--r-- | UefiCpuPkg/Library/MpInitLib/MpLib.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/UefiCpuPkg/Library/MpInitLib/MpLib.c b/UefiCpuPkg/Library/MpInitLib/MpLib.c index e7054adbcc..6f1456cfe1 100644 --- a/UefiCpuPkg/Library/MpInitLib/MpLib.c +++ b/UefiCpuPkg/Library/MpInitLib/MpLib.c @@ -1294,7 +1294,14 @@ WakeUpAP ( if (CpuMpData->SevSnpIsEnabled && (CpuMpData->InitFlag != ApInitConfig)) {
SevSnpCreateAP (CpuMpData, -1);
} else {
- SendInitSipiSipiAllExcludingSelf ((UINT32)ExchangeInfo->BufferStart);
+ if ((CpuMpData->InitFlag == ApInitConfig) && FixedPcdGetBool (PcdFirstTimeWakeUpAPsBySipi)) {
+ //
+ // SIPI can be used for the first time wake up after reset to reduce boot time.
+ //
+ SendStartupIpiAllExcludingSelf ((UINT32)ExchangeInfo->BufferStart);
+ } else {
+ SendInitSipiSipiAllExcludingSelf ((UINT32)ExchangeInfo->BufferStart);
+ }
}
}
|