/** @file\r
MP initialize support functions for PEI phase.\r
\r
- Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>\r
- This program and the accompanying materials\r
- are licensed and made available under the terms and conditions of the BSD License\r
- which accompanies this distribution. The full text of the license may be found at\r
- http://opensource.org/licenses/bsd-license.php\r
-\r
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+ Copyright (c) 2016 - 2018, Intel Corporation. All rights reserved.<BR>\r
+ SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include "MpLib.h"\r
-#include <Ppi/EndOfPeiPhase.h>\r
#include <Library/PeiServicesLib.h>\r
+#include <Guid/S3SmmInitDone.h>\r
+\r
+/**\r
+ S3 SMM Init Done notification function.\r
+\r
+ @param PeiServices Indirect reference to the PEI Services Table.\r
+ @param NotifyDesc Address of the notification descriptor data structure.\r
+ @param InvokePpi Address of the PPI that was invoked.\r
+\r
+ @retval EFI_SUCCESS The function completes successfully.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NotifyOnS3SmmInitDonePpi (\r
+ IN EFI_PEI_SERVICES **PeiServices,\r
+ IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDesc,\r
+ IN VOID *InvokePpi\r
+ );\r
+\r
\r
//\r
-// Global PEI notify function descriptor on EndofPei event\r
+// Global function\r
//\r
-GLOBAL_REMOVE_IF_UNREFERENCED EFI_PEI_NOTIFY_DESCRIPTOR mMpInitLibNotifyList = {\r
- (EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r
- &gEfiEndOfPeiSignalPpiGuid,\r
- CpuMpEndOfPeiCallback\r
+EFI_PEI_NOTIFY_DESCRIPTOR mS3SmmInitDoneNotifyDesc = {\r
+ EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,\r
+ &gEdkiiS3SmmInitDoneGuid,\r
+ NotifyOnS3SmmInitDonePpi\r
};\r
\r
+/**\r
+ S3 SMM Init Done notification function.\r
+\r
+ @param PeiServices Indirect reference to the PEI Services Table.\r
+ @param NotifyDesc Address of the notification descriptor data structure.\r
+ @param InvokePpi Address of the PPI that was invoked.\r
+\r
+ @retval EFI_SUCCESS The function completes successfully.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NotifyOnS3SmmInitDonePpi (\r
+ IN EFI_PEI_SERVICES **PeiServices,\r
+ IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDesc,\r
+ IN VOID *InvokePpi\r
+ )\r
+{\r
+ CPU_MP_DATA *CpuMpData;\r
+\r
+ CpuMpData = GetCpuMpData ();\r
+\r
+ //\r
+ // PiSmmCpuDxeSmm driver hardcode change the loop mode to HLT mode.\r
+ // So in this notify function, code need to check the current loop\r
+ // mode, if it is not HLT mode, code need to change loop mode back\r
+ // to the original mode.\r
+ //\r
+ if (CpuMpData->ApLoopMode != ApInHltLoop) {\r
+ CpuMpData->WakeUpByInitSipiSipi = TRUE;\r
+ }\r
+\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+\r
+/**\r
+ Enable Debug Agent to support source debugging on AP function.\r
+\r
+**/\r
+VOID\r
+EnableDebugAgent (\r
+ VOID\r
+ )\r
+{\r
+}\r
+\r
/**\r
Get pointer to CPU MP Data structure.\r
+ For BSP, the pointer is retrieved from HOB.\r
+ For AP, the structure is just after IDT.\r
\r
@return The pointer to CPU MP Data structure.\r
**/\r
VOID\r
)\r
{\r
- CPU_MP_DATA *CpuMpData;\r
-\r
- CpuMpData = GetCpuMpDataFromGuidedHob ();\r
- ASSERT (CpuMpData != NULL);\r
+ CPU_MP_DATA *CpuMpData;\r
+ MSR_IA32_APIC_BASE_REGISTER ApicBaseMsr;\r
+ IA32_DESCRIPTOR Idtr;\r
+\r
+ ApicBaseMsr.Uint64 = AsmReadMsr64 (MSR_IA32_APIC_BASE);\r
+ if (ApicBaseMsr.Bits.BSP == 1) {\r
+ CpuMpData = GetCpuMpDataFromGuidedHob ();\r
+ ASSERT (CpuMpData != NULL);\r
+ } else {\r
+ AsmReadIdtr (&Idtr);\r
+ CpuMpData = (CPU_MP_DATA *) (Idtr.Base + Idtr.Limit + 1);\r
+ }\r
return CpuMpData;\r
}\r
\r
);\r
}\r
\r
-/**\r
- Get available system memory below 1MB by specified size.\r
-\r
- @param[in] PeiCpuMpData Pointer to PEI CPU MP Data\r
-**/\r
-VOID\r
-BackupAndPrepareWakeupBuffer(\r
- IN CPU_MP_DATA *CpuMpData\r
- )\r
-{\r
- CopyMem (\r
- (VOID *) CpuMpData->BackupBuffer,\r
- (VOID *) CpuMpData->WakeupBuffer,\r
- CpuMpData->BackupBufferSize\r
- );\r
- CopyMem (\r
- (VOID *) CpuMpData->WakeupBuffer,\r
- (VOID *) CpuMpData->AddressMap.RendezvousFunnelAddress,\r
- CpuMpData->AddressMap.RendezvousFunnelSize\r
- );\r
-}\r
-\r
-/**\r
- Restore wakeup buffer data.\r
-\r
- @param[in] PeiCpuMpData Pointer to PEI CPU MP Data\r
-**/\r
-VOID\r
-RestoreWakeupBuffer(\r
- IN CPU_MP_DATA *CpuMpData\r
- )\r
-{\r
- CopyMem (\r
- (VOID *) CpuMpData->WakeupBuffer,\r
- (VOID *) CpuMpData->BackupBuffer,\r
- CpuMpData->BackupBufferSize\r
- );\r
-}\r
-\r
-/**\r
- Notify function on End Of PEI PPI.\r
-\r
- On S3 boot, this function will restore wakeup buffer data.\r
- On normal boot, this function will flag wakeup buffer to be un-used type.\r
-\r
- @param[in] PeiServices The pointer to the PEI Services Table.\r
- @param[in] NotifyDescriptor Address of the notification descriptor data structure.\r
- @param[in] Ppi Address of the PPI that was installed.\r
-\r
- @retval EFI_SUCCESS When everything is OK.\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-CpuMpEndOfPeiCallback (\r
- IN EFI_PEI_SERVICES **PeiServices,\r
- IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r
- IN VOID *Ppi\r
- )\r
-{\r
- EFI_STATUS Status;\r
- EFI_BOOT_MODE BootMode;\r
- CPU_MP_DATA *CpuMpData;\r
- EFI_PEI_HOB_POINTERS Hob;\r
- EFI_HOB_MEMORY_ALLOCATION *MemoryHob;\r
-\r
- DEBUG ((DEBUG_INFO, "PeiMpInitLib: CpuMpEndOfPeiCallback () invoked\n"));\r
-\r
- Status = PeiServicesGetBootMode (&BootMode);\r
- ASSERT_EFI_ERROR (Status);\r
-\r
- CpuMpData = GetCpuMpData ();\r
- if (BootMode != BOOT_ON_S3_RESUME) {\r
- //\r
- // Get the HOB list for processing\r
- //\r
- Hob.Raw = GetHobList ();\r
- //\r
- // Collect memory ranges\r
- //\r
- while (!END_OF_HOB_LIST (Hob)) {\r
- if (Hob.Header->HobType == EFI_HOB_TYPE_MEMORY_ALLOCATION) {\r
- MemoryHob = Hob.MemoryAllocation;\r
- if (MemoryHob->AllocDescriptor.MemoryBaseAddress == CpuMpData->WakeupBuffer) {\r
- //\r
- // Flag this HOB type to un-used\r
- //\r
- GET_HOB_TYPE (Hob) = EFI_HOB_TYPE_UNUSED;\r
- break;\r
- }\r
- }\r
- Hob.Raw = GET_NEXT_HOB (Hob);\r
- }\r
- } else {\r
- CpuMpData->EndOfPeiFlag = TRUE;\r
- RestoreWakeupBuffer (CpuMpData);\r
- }\r
- return EFI_SUCCESS;\r
-}\r
-\r
/**\r
Check if AP wakeup buffer is overlapped with existing allocated buffer.\r
\r
**/\r
BOOLEAN\r
CheckOverlapWithAllocatedBuffer (\r
- IN UINTN WakeupBufferStart,\r
- IN UINTN WakeupBufferEnd\r
+ IN UINT64 WakeupBufferStart,\r
+ IN UINT64 WakeupBufferEnd\r
)\r
{\r
EFI_PEI_HOB_POINTERS Hob;\r
EFI_HOB_MEMORY_ALLOCATION *MemoryHob;\r
BOOLEAN Overlapped;\r
- UINTN MemoryStart;\r
- UINTN MemoryEnd;\r
+ UINT64 MemoryStart;\r
+ UINT64 MemoryEnd;\r
\r
Overlapped = FALSE;\r
//\r
while (!END_OF_HOB_LIST (Hob)) {\r
if (Hob.Header->HobType == EFI_HOB_TYPE_MEMORY_ALLOCATION) {\r
MemoryHob = Hob.MemoryAllocation;\r
- MemoryStart = (UINTN) MemoryHob->AllocDescriptor.MemoryBaseAddress;\r
- MemoryEnd = (UINTN) (MemoryHob->AllocDescriptor.MemoryBaseAddress +\r
- MemoryHob->AllocDescriptor.MemoryLength);\r
+ MemoryStart = MemoryHob->AllocDescriptor.MemoryBaseAddress;\r
+ MemoryEnd = MemoryHob->AllocDescriptor.MemoryBaseAddress + MemoryHob->AllocDescriptor.MemoryLength;\r
if (!((WakeupBufferStart >= MemoryEnd) || (WakeupBufferEnd <= MemoryStart))) {\r
Overlapped = TRUE;\r
break;\r
)\r
{\r
EFI_PEI_HOB_POINTERS Hob;\r
- UINTN WakeupBufferStart;\r
- UINTN WakeupBufferEnd;\r
+ UINT64 WakeupBufferStart;\r
+ UINT64 WakeupBufferEnd;\r
\r
WakeupBufferSize = (WakeupBufferSize + SIZE_4KB - 1) & ~(SIZE_4KB - 1);\r
\r
//\r
// Need memory under 1MB to be collected here\r
//\r
- WakeupBufferEnd = (UINTN) (Hob.ResourceDescriptor->PhysicalStart + Hob.ResourceDescriptor->ResourceLength);\r
+ WakeupBufferEnd = Hob.ResourceDescriptor->PhysicalStart + Hob.ResourceDescriptor->ResourceLength;\r
if (WakeupBufferEnd > BASE_1MB) {\r
//\r
// Wakeup buffer should be under 1MB\r
}\r
DEBUG ((DEBUG_INFO, "WakeupBufferStart = %x, WakeupBufferSize = %x\n",\r
WakeupBufferStart, WakeupBufferSize));\r
- //\r
- // Create a memory allocation HOB.\r
- //\r
- BuildMemoryAllocationHob (\r
- WakeupBufferStart,\r
- WakeupBufferSize,\r
- EfiBootServicesData\r
- );\r
- return WakeupBufferStart;\r
+ return (UINTN)WakeupBufferStart;\r
}\r
}\r
}\r
}\r
\r
/**\r
- Allocate reset vector buffer.\r
+ Get available EfiBootServicesCode memory below 4GB by specified size.\r
+\r
+ This buffer is required to safely transfer AP from real address mode to\r
+ protected mode or long mode, due to the fact that the buffer returned by\r
+ GetWakeupBuffer() may be marked as non-executable.\r
\r
- @param[in, out] CpuMpData The pointer to CPU MP Data structure.\r
+ @param[in] BufferSize Wakeup transition buffer size.\r
+\r
+ @retval other Return wakeup transition buffer address below 4GB.\r
+ @retval 0 Cannot find free memory below 4GB.\r
**/\r
-VOID\r
-AllocateResetVector (\r
- IN OUT CPU_MP_DATA *CpuMpData\r
+UINTN\r
+GetModeTransitionBuffer (\r
+ IN UINTN BufferSize\r
)\r
{\r
- UINTN ApResetVectorSize;\r
-\r
- if (CpuMpData->WakeupBuffer == (UINTN) -1) {\r
- ApResetVectorSize = CpuMpData->AddressMap.RendezvousFunnelSize +\r
- sizeof (MP_CPU_EXCHANGE_INFO);\r
-\r
- CpuMpData->WakeupBuffer = GetWakeupBuffer (ApResetVectorSize);\r
- CpuMpData->MpCpuExchangeInfo = (MP_CPU_EXCHANGE_INFO *) (UINTN)\r
- (CpuMpData->WakeupBuffer + CpuMpData->AddressMap.RendezvousFunnelSize);\r
- BackupAndPrepareWakeupBuffer (CpuMpData);\r
- }\r
-\r
- if (CpuMpData->EndOfPeiFlag) {\r
- BackupAndPrepareWakeupBuffer (CpuMpData);\r
- }\r
+ //\r
+ // PEI phase doesn't need to do such transition. So simply return 0.\r
+ //\r
+ return 0;\r
}\r
\r
/**\r
- Free AP reset vector buffer.\r
+ Checks APs status and updates APs status if needed.\r
\r
- @param[in] CpuMpData The pointer to CPU MP Data structure.\r
**/\r
VOID\r
-FreeResetVector (\r
- IN CPU_MP_DATA *CpuMpData\r
+CheckAndUpdateApsStatus (\r
+ VOID\r
)\r
{\r
- if (CpuMpData->EndOfPeiFlag) {\r
- RestoreWakeupBuffer (CpuMpData);\r
- }\r
}\r
\r
/**\r
IN CPU_MP_DATA *CpuMpData\r
)\r
{\r
- EFI_STATUS Status;\r
+ EFI_STATUS Status;\r
\r
SaveCpuMpData (CpuMpData);\r
- //\r
- // Register an event for EndOfPei\r
- //\r
- Status = PeiServicesNotifyPpi (&mMpInitLibNotifyList);\r
+\r
+ ///\r
+ /// Install Notify\r
+ ///\r
+ Status = PeiServicesNotifyPpi (&mS3SmmInitDoneNotifyDesc);\r
ASSERT_EFI_ERROR (Status);\r
}\r
\r
EFI_EVENT is defined in CreateEvent() in\r
the Unified Extensible Firmware Interface\r
Specification.\r
- @param[in] TimeoutInMicrosecsond Indicates the time limit in microseconds for\r
+ @param[in] TimeoutInMicroseconds Indicates the time limit in microseconds for\r
APs to return from Procedure, either for\r
blocking or non-blocking mode. Zero means\r
infinity. If the timeout expires before\r
OUT UINTN **FailedCpuList OPTIONAL\r
)\r
{\r
- return EFI_UNSUPPORTED;\r
+ if (WaitEvent != NULL) {\r
+ return EFI_UNSUPPORTED;\r
+ }\r
+\r
+ return StartupAllAPsWorker (\r
+ Procedure,\r
+ SingleThread,\r
+ NULL,\r
+ TimeoutInMicroseconds,\r
+ ProcedureArgument,\r
+ FailedCpuList\r
+ );\r
}\r
\r
/**\r
EFI_EVENT is defined in CreateEvent() in\r
the Unified Extensible Firmware Interface\r
Specification.\r
- @param[in] TimeoutInMicrosecsond Indicates the time limit in microseconds for\r
+ @param[in] TimeoutInMicroseconds Indicates the time limit in microseconds for\r
this AP to finish this Procedure, either for\r
blocking or non-blocking mode. Zero means\r
infinity. If the timeout expires before\r
OUT BOOLEAN *Finished OPTIONAL\r
)\r
{\r
- return EFI_UNSUPPORTED;\r
+ if (WaitEvent != NULL) {\r
+ return EFI_UNSUPPORTED;\r
+ }\r
+\r
+ return StartupThisAPWorker (\r
+ Procedure,\r
+ ProcessorNumber,\r
+ NULL,\r
+ TimeoutInMicroseconds,\r
+ ProcedureArgument,\r
+ Finished\r
+ );\r
}\r
\r
/**\r
IN UINT32 *HealthFlag OPTIONAL\r
)\r
{\r
- return EFI_UNSUPPORTED;\r
+ return EnableDisableApWorker (ProcessorNumber, EnableAP, HealthFlag);\r
}\r
\r
\r
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