X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=UefiCpuPkg%2FCpuMpPei%2FCpuMpPei.c;h=97b7e99c9a0419182a5e40bf1b4405432b9fd2d2;hb=3fd56a2672ede208e44d5bc495339bfb9ba6cd5d;hp=d63b1ff23111ac9d49fb5a87f3e482072aaa8906;hpb=d1cf93333f3a9394c2f746db4deb374b6ba374fd;p=mirror_edk2.git

diff --git a/UefiCpuPkg/CpuMpPei/CpuMpPei.c b/UefiCpuPkg/CpuMpPei/CpuMpPei.c
index d63b1ff231..97b7e99c9a 100644
--- a/UefiCpuPkg/CpuMpPei/CpuMpPei.c
+++ b/UefiCpuPkg/CpuMpPei/CpuMpPei.c
@@ -38,6 +38,12 @@ GLOBAL_REMOVE_IF_UNREFERENCED IA32_DESCRIPTOR mGdt = {
   (UINTN) mGdtEntries
   };
 
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_PEI_NOTIFY_DESCRIPTOR mNotifyList = {
+  (EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
+  &gEfiEndOfPeiSignalPpiGuid,
+  CpuMpEndOfPeiCallback
+};
+
 /**
   Sort the APIC ID of all processors.
 
@@ -94,6 +100,31 @@ 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 +139,8 @@ ApCFunction (
   )
 {
   PEI_CPU_MP_DATA            *PeiCpuMpData;
+  UINTN                      ProcessorNumber;
+  EFI_AP_PROCEDURE           Procedure;
   UINTN                      BistData;
 
   PeiCpuMpData = ExchangeInfo->PeiCpuMpData;
@@ -123,6 +156,18 @@ 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;
+    }
   }
 
   //
@@ -130,6 +175,7 @@ ApCFunction (
   //
   InterlockedIncrement ((UINT32 *)&PeiCpuMpData->FinishedCount);
 
+  AsmCliHltLoop ();
 }
 
 /**
@@ -277,6 +323,20 @@ BackupAndPrepareWakeupBuffer(
     PeiCpuMpData->AddressMap.RendezvousFunnelSize
     );
 }
+
+/**
+  Restore wakeup buffer data.
+
+  @param PeiCpuMpData        Pointer to PEI CPU MP Data
+**/
+VOID
+RestoreWakeupBuffer(
+  IN PEI_CPU_MP_DATA         *PeiCpuMpData
+  )
+{
+  CopyMem ((VOID *) PeiCpuMpData->WakeupBuffer, (VOID *) PeiCpuMpData->BackupBuffer, PeiCpuMpData->BackupBufferSize);
+}
+
 /**
   This function will get CPU count in the system.
 
@@ -341,6 +401,7 @@ PrepareAPStartupVector (
   AsmGetAddressMap (&AddressMap);
   WakeupBufferSize = AddressMap.RendezvousFunnelSize + sizeof (MP_CPU_EXCHANGE_INFO);
   WakeupBuffer     = GetWakeupBuffer ((WakeupBufferSize + SIZE_4KB - 1) & ~(SIZE_4KB - 1));
+  ASSERT (WakeupBuffer != (UINTN) -1);
   DEBUG ((EFI_D_INFO, "CpuMpPei: WakeupBuffer = 0x%x\n", WakeupBuffer));
 
   //
@@ -369,6 +430,7 @@ PrepareAPStartupVector (
   PeiCpuMpData->CpuData                  = (PEI_CPU_DATA *) (PeiCpuMpData->MpCpuExchangeInfo + 1);
   PeiCpuMpData->CpuData[0].ApicId        = GetInitialApicId ();
   PeiCpuMpData->CpuData[0].Health.Uint32 = 0;
+  PeiCpuMpData->EndOfPeiFlag             = FALSE;
   CopyMem (&PeiCpuMpData->AddressMap, &AddressMap, sizeof (MP_ASSEMBLY_ADDRESS_MAP));
 
   //
@@ -378,6 +440,70 @@ PrepareAPStartupVector (
 
   return PeiCpuMpData;
 }
+
+/**
+  Notify function on End Of Pei PPI.
+
+  On S3 boot, this function will restore wakeup buffer data.
+  On normal boot, this function will flag wakeup buffer to be un-used type.
+
+  @param  PeiServices        The pointer to the PEI Services Table.
+  @param  NotifyDescriptor   Address of the notification descriptor data structure.
+  @param  Ppi                Address of the PPI that was installed.
+
+  @retval EFI_SUCCESS        When everything is OK.
+
+**/
+EFI_STATUS
+EFIAPI
+CpuMpEndOfPeiCallback (
+  IN      EFI_PEI_SERVICES        **PeiServices,
+  IN EFI_PEI_NOTIFY_DESCRIPTOR    *NotifyDescriptor,
+  IN VOID                         *Ppi
+  )
+{
+  EFI_STATUS                Status;
+  EFI_BOOT_MODE             BootMode;
+  PEI_CPU_MP_DATA           *PeiCpuMpData;
+  EFI_PEI_HOB_POINTERS      Hob;
+  EFI_HOB_MEMORY_ALLOCATION *MemoryHob;
+
+  DEBUG ((EFI_D_INFO, "CpuMpPei: CpuMpEndOfPeiCallback () invokded\n"));
+
+  Status = PeiServicesGetBootMode (&BootMode);
+  ASSERT_EFI_ERROR (Status);
+
+  PeiCpuMpData = GetMpHobData ();
+  ASSERT (PeiCpuMpData != NULL);
+
+  if (BootMode != BOOT_ON_S3_RESUME) {
+    //
+    // Get the HOB list for processing
+    //
+    Hob.Raw = GetHobList ();
+    //
+    // Collect memory ranges
+    //
+    while (!END_OF_HOB_LIST (Hob)) {
+      if (Hob.Header->HobType == EFI_HOB_TYPE_MEMORY_ALLOCATION) {
+        MemoryHob = Hob.MemoryAllocation;
+        if(MemoryHob->AllocDescriptor.MemoryBaseAddress == PeiCpuMpData->WakeupBuffer) {
+          //
+          // Flag this HOB type to un-used
+          //
+          GET_HOB_TYPE (Hob) = EFI_HOB_TYPE_UNUSED;
+          break;
+        }
+      }
+      Hob.Raw = GET_NEXT_HOB (Hob);
+    }
+  } else {
+    RestoreWakeupBuffer (PeiCpuMpData);
+    PeiCpuMpData->EndOfPeiFlag = TRUE;
+  }
+  return EFI_SUCCESS;
+}
+
 /**
   The Entry point of the MP CPU PEIM.
 
@@ -397,7 +523,7 @@ CpuMpPeimInit (
   IN CONST EFI_PEI_SERVICES     **PeiServices
   )
 {
-
+  EFI_STATUS           Status;
   PEI_CPU_MP_DATA      *PeiCpuMpData;
   UINT32               ProcessorCount;
 
@@ -413,6 +539,28 @@ 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);
+  //
+  // register an event for EndOfPei
+  //
+  Status  = PeiServicesNotifyPpi (&mNotifyList);
+  ASSERT_EFI_ERROR (Status);
+  //
+  // Install CPU MP PPI
+  //
+  Status = PeiServicesInstallPpi(&mPeiCpuMpPpiDesc);
+  ASSERT_EFI_ERROR (Status);
 
-  return EFI_SUCCESS;
+  return Status;
 }