Revision: 18380
http://sourceforge.net/p/edk2/code/18380
Author: hwu1225
Date: 2015-09-02 03:15:20 +0000 (Wed, 02 Sep 2015)
Log Message:
-----------
UefiCpuPkg/CpuMpPei: Update the old/new BSP state in SwitchBsp()
(Sync patch r18372 from main trunk.)
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <[email protected]>
Reviewed-by: Feng Tian <[email protected]>
Revision Links:
--------------
http://sourceforge.net/p/edk2/code/18372
Modified Paths:
--------------
branches/UDK2015/UefiCpuPkg/CpuMpPei/PeiMpServices.c
Modified: branches/UDK2015/UefiCpuPkg/CpuMpPei/PeiMpServices.c
===================================================================
--- branches/UDK2015/UefiCpuPkg/CpuMpPei/PeiMpServices.c 2015-09-01
17:29:23 UTC (rev 18379)
+++ branches/UDK2015/UefiCpuPkg/CpuMpPei/PeiMpServices.c 2015-09-02
03:15:20 UTC (rev 18380)
@@ -804,6 +804,16 @@
ApicBaseMsr.Uint64 = AsmReadMsr64 (MSR_IA32_APIC_BASE_ADDRESS);
ApicBaseMsr.Bits.Bsp = 1;
AsmWriteMsr64 (MSR_IA32_APIC_BASE_ADDRESS, ApicBaseMsr.Uint64);
+ //
+ // Set old BSP enable state
+ //
+ if (!EnableOldBSP) {
+ PeiCpuMpData->CpuData[PeiCpuMpData->BspNumber].State = CpuStateDisabled;
+ }
+ //
+ // Save new BSP number
+ //
+ PeiCpuMpData->BspNumber = (UINT32) ProcessorNumber;
return EFI_SUCCESS;
}
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