UefiCpuPkg MpInitLib: Fix typo "sCPUID" to "CPUID"

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

diff --git a/UefiCpuPkg/Library/MpInitLib/MpLib.c b/UefiCpuPkg/Library/MpInitLib/MpLib.c
index f8ab5f115dc4938b870e2727a91722e2b4bdb134..f2ff40417a89aef62d274ede7fa05084f71bebd5 100644 (file)
--- a/UefiCpuPkg/Library/MpInitLib/MpLib.c
+++ b/UefiCpuPkg/Library/MpInitLib/MpLib.c
@@ -639,6 +639,13 @@ ApWakeupFunction (
         // Restore AP's volatile registers saved\r
         //\r
         RestoreVolatileRegisters (&CpuMpData->CpuData[ProcessorNumber].VolatileRegisters, TRUE);\r
+      } else {\r
+        //\r
+        // The CPU driver might not flush TLB for APs on spot after updating\r
+        // page attributes. AP in mwait loop mode needs to take care of it when\r
+        // woken up.\r
+        //\r
+        CpuFlushTlb ();\r
       }\r
 \r
       if (GetApState (&CpuMpData->CpuData[ProcessorNumber]) == CpuStateReady) {\r