UefiCpuPkg/CpuMpPei: Implementation of PeiEnableDisableAP ()

[mirror_edk2.git] / UefiCpuPkg / CpuMpPei / CpuMpPei.c

diff --git a/UefiCpuPkg/CpuMpPei/CpuMpPei.c b/UefiCpuPkg/CpuMpPei/CpuMpPei.c
index d63b1ff23111ac9d49fb5a87f3e482072aaa8906..bfcf8168298e656bdb2cb98ae77a8868be4f3b03 100644 (file)
--- a/UefiCpuPkg/CpuMpPei/CpuMpPei.c
+++ b/UefiCpuPkg/CpuMpPei/CpuMpPei.c
@@ -94,6 +94,31 @@ SortApicId (
     }
   }
 }
+
+/**
+  Get CPU MP Data pointer from the Guided HOB.
+
+  @return  Pointer to Pointer to PEI CPU MP Data
+**/
+PEI_CPU_MP_DATA *
+GetMpHobData (
+  VOID
+  )
+{
+  EFI_HOB_GUID_TYPE       *GuidHob;
+  VOID                    *DataInHob;
+  PEI_CPU_MP_DATA         *CpuMpData;
+
+  CpuMpData = NULL;
+  GuidHob = GetFirstGuidHob (&gEfiCallerIdGuid);
+  if (GuidHob != NULL) {
+    DataInHob = GET_GUID_HOB_DATA (GuidHob);
+    CpuMpData = (PEI_CPU_MP_DATA *)(*(UINTN *)DataInHob);
+  }
+  ASSERT (CpuMpData != NULL);
+  return CpuMpData;
+}
+
 /**
   This function will be called from AP reset code if BSP uses WakeUpAP.
 
@@ -108,6 +133,8 @@ ApCFunction (
   )
 {
   PEI_CPU_MP_DATA            *PeiCpuMpData;
+  UINTN                      ProcessorNumber;
+  EFI_AP_PROCEDURE           Procedure;
   UINTN                      BistData;
 
   PeiCpuMpData = ExchangeInfo->PeiCpuMpData;
@@ -123,6 +150,18 @@ ApCFunction (
     //
     MtrrSetAllMtrrs (&PeiCpuMpData->MtrrTable);
     MicrocodeDetect ();
+  } else {
+    //
+    // Execute AP function if AP is not disabled
+    //
+    GetProcessorNumber (PeiCpuMpData, &ProcessorNumber);
+    if ((PeiCpuMpData->CpuData[ProcessorNumber].State != CpuStateDisabled) &&
+        (PeiCpuMpData->ApFunction != 0)) {
+      PeiCpuMpData->CpuData[ProcessorNumber].State = CpuStateBusy;
+      Procedure = (EFI_AP_PROCEDURE)(UINTN)PeiCpuMpData->ApFunction;
+      Procedure ((VOID *)(UINTN)PeiCpuMpData->ApFunctionArgument);
+      PeiCpuMpData->CpuData[ProcessorNumber].State = CpuStateIdle;
+    }
   }
 
   //
@@ -413,6 +452,18 @@ CpuMpPeimInit (
   // Count processor number and collect processor information
   //
   ProcessorCount = CountProcessorNumber (PeiCpuMpData);
+  //
+  // Build location of PEI CPU MP DATA buffer in HOB
+  //
+  BuildGuidDataHob (
+    &gEfiCallerIdGuid,
+    (VOID *)&PeiCpuMpData,
+    sizeof(UINT64)
+    );
+  //
+  // Update and publish CPU BIST information
+  //
+  CollectBistDataFromPpi (PeiServices, PeiCpuMpData);
 
   return EFI_SUCCESS;
 }