| /** @file | |
| Update and publish processors' BIST information. | |
| Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved.<BR> | |
| SPDX-License-Identifier: BSD-2-Clause-Patent | |
| **/ | |
| #include "CpuMpPei.h" | |
| EFI_SEC_PLATFORM_INFORMATION2_PPI mSecPlatformInformation2Ppi = { | |
| SecPlatformInformation2 | |
| }; | |
| EFI_PEI_PPI_DESCRIPTOR mPeiSecPlatformInformation2Ppi = { | |
| (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST), | |
| &gEfiSecPlatformInformation2PpiGuid, | |
| &mSecPlatformInformation2Ppi | |
| }; | |
| /** | |
| Implementation of the PlatformInformation2 service in EFI_SEC_PLATFORM_INFORMATION2_PPI. | |
| @param PeiServices The pointer to the PEI Services Table. | |
| @param StructureSize The pointer to the variable describing size of the input buffer. | |
| @param PlatformInformationRecord2 The pointer to the EFI_SEC_PLATFORM_INFORMATION_RECORD2. | |
| @retval EFI_SUCCESS The data was successfully returned. | |
| @retval EFI_BUFFER_TOO_SMALL The buffer was too small. The current buffer size needed to | |
| hold the record is returned in StructureSize. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| SecPlatformInformation2 ( | |
| IN CONST EFI_PEI_SERVICES **PeiServices, | |
| IN OUT UINT64 *StructureSize, | |
| OUT EFI_SEC_PLATFORM_INFORMATION_RECORD2 *PlatformInformationRecord2 | |
| ) | |
| { | |
| EFI_HOB_GUID_TYPE *GuidHob; | |
| VOID *DataInHob; | |
| UINTN DataSize; | |
| GuidHob = GetFirstGuidHob (&gEfiSecPlatformInformation2PpiGuid); | |
| if (GuidHob == NULL) { | |
| *StructureSize = 0; | |
| return EFI_SUCCESS; | |
| } | |
| DataInHob = GET_GUID_HOB_DATA (GuidHob); | |
| DataSize = GET_GUID_HOB_DATA_SIZE (GuidHob); | |
| // | |
| // return the information from BistHob | |
| // | |
| if ((*StructureSize) < (UINT64)DataSize) { | |
| *StructureSize = (UINT64)DataSize; | |
| return EFI_BUFFER_TOO_SMALL; | |
| } | |
| *StructureSize = (UINT64)DataSize; | |
| CopyMem (PlatformInformationRecord2, DataInHob, DataSize); | |
| return EFI_SUCCESS; | |
| } | |
| /** | |
| Worker function to get CPUs' BIST by calling SecPlatformInformationPpi | |
| or SecPlatformInformation2Ppi. | |
| @param PeiServices Pointer to PEI Services Table | |
| @param Guid PPI Guid | |
| @param PpiDescriptor Return a pointer to instance of the | |
| EFI_PEI_PPI_DESCRIPTOR | |
| @param BistInformationData Pointer to BIST information data | |
| @param BistInformationSize Return the size in bytes of BIST information | |
| @retval EFI_SUCCESS Retrieve of the BIST data successfully | |
| @retval EFI_NOT_FOUND No sec platform information(2) ppi export | |
| @retval EFI_DEVICE_ERROR Failed to get CPU Information | |
| **/ | |
| EFI_STATUS | |
| GetBistInfoFromPpi ( | |
| IN CONST EFI_PEI_SERVICES **PeiServices, | |
| IN CONST EFI_GUID *Guid, | |
| OUT EFI_PEI_PPI_DESCRIPTOR **PpiDescriptor, | |
| OUT VOID **BistInformationData, | |
| OUT UINT64 *BistInformationSize OPTIONAL | |
| ) | |
| { | |
| EFI_STATUS Status; | |
| EFI_SEC_PLATFORM_INFORMATION2_PPI *SecPlatformInformation2Ppi; | |
| EFI_SEC_PLATFORM_INFORMATION_RECORD2 *SecPlatformInformation2; | |
| UINT64 InformationSize; | |
| Status = PeiServicesLocatePpi ( | |
| Guid, // GUID | |
| 0, // INSTANCE | |
| PpiDescriptor, // EFI_PEI_PPI_DESCRIPTOR | |
| (VOID **)&SecPlatformInformation2Ppi // PPI | |
| ); | |
| if (Status == EFI_NOT_FOUND) { | |
| return EFI_NOT_FOUND; | |
| } | |
| if (Status == EFI_SUCCESS) { | |
| // | |
| // Get the size of the sec platform information2(BSP/APs' BIST data) | |
| // | |
| InformationSize = 0; | |
| SecPlatformInformation2 = NULL; | |
| Status = SecPlatformInformation2Ppi->PlatformInformation2 ( | |
| PeiServices, | |
| &InformationSize, | |
| SecPlatformInformation2 | |
| ); | |
| if (Status == EFI_BUFFER_TOO_SMALL) { | |
| Status = PeiServicesAllocatePool ( | |
| (UINTN)InformationSize, | |
| (VOID **)&SecPlatformInformation2 | |
| ); | |
| if (Status == EFI_SUCCESS) { | |
| // | |
| // Retrieve BIST data | |
| // | |
| Status = SecPlatformInformation2Ppi->PlatformInformation2 ( | |
| PeiServices, | |
| &InformationSize, | |
| SecPlatformInformation2 | |
| ); | |
| if (Status == EFI_SUCCESS) { | |
| *BistInformationData = SecPlatformInformation2; | |
| if (BistInformationSize != NULL) { | |
| *BistInformationSize = InformationSize; | |
| } | |
| return EFI_SUCCESS; | |
| } | |
| } | |
| } | |
| } | |
| return EFI_DEVICE_ERROR; | |
| } | |
| /** | |
| Collects BIST data from PPI. | |
| This function collects BIST data from Sec Platform Information2 PPI | |
| or SEC Platform Information PPI. | |
| @param PeiServices Pointer to PEI Services Table | |
| **/ | |
| VOID | |
| CollectBistDataFromPpi ( | |
| IN CONST EFI_PEI_SERVICES **PeiServices | |
| ) | |
| { | |
| EFI_STATUS Status; | |
| EFI_PEI_PPI_DESCRIPTOR *SecInformationDescriptor; | |
| EFI_SEC_PLATFORM_INFORMATION_RECORD2 *SecPlatformInformation2; | |
| EFI_SEC_PLATFORM_INFORMATION_RECORD *SecPlatformInformation; | |
| UINTN NumberOfData; | |
| EFI_SEC_PLATFORM_INFORMATION_CPU *CpuInstance; | |
| EFI_SEC_PLATFORM_INFORMATION_CPU BspCpuInstance; | |
| UINTN ProcessorNumber; | |
| UINTN CpuIndex; | |
| EFI_PROCESSOR_INFORMATION ProcessorInfo; | |
| EFI_HEALTH_FLAGS BistData; | |
| UINTN NumberOfProcessors; | |
| UINTN NumberOfEnabledProcessors; | |
| UINTN BistInformationSize; | |
| EFI_SEC_PLATFORM_INFORMATION_RECORD2 *PlatformInformationRecord2; | |
| EFI_SEC_PLATFORM_INFORMATION_CPU *CpuInstanceInHob; | |
| Status = MpInitLibGetNumberOfProcessors (&NumberOfProcessors, &NumberOfEnabledProcessors); | |
| ASSERT_EFI_ERROR (Status); | |
| if (EFI_ERROR (Status)) { | |
| NumberOfProcessors = 1; | |
| NumberOfEnabledProcessors = 1; | |
| } | |
| BistInformationSize = sizeof (EFI_SEC_PLATFORM_INFORMATION_RECORD2) + | |
| sizeof (EFI_SEC_PLATFORM_INFORMATION_CPU) * NumberOfProcessors; | |
| Status = PeiServicesAllocatePool ( | |
| (UINTN)BistInformationSize, | |
| (VOID **)&PlatformInformationRecord2 | |
| ); | |
| ASSERT_EFI_ERROR (Status); | |
| PlatformInformationRecord2->NumberOfCpus = (UINT32)NumberOfProcessors; | |
| SecPlatformInformation2 = NULL; | |
| SecPlatformInformation = NULL; | |
| NumberOfData = 0; | |
| CpuInstance = NULL; | |
| // | |
| // Get BIST information from Sec Platform Information2 Ppi firstly | |
| // | |
| Status = GetBistInfoFromPpi ( | |
| PeiServices, | |
| &gEfiSecPlatformInformation2PpiGuid, | |
| &SecInformationDescriptor, | |
| (VOID *)&SecPlatformInformation2, | |
| NULL | |
| ); | |
| if (Status == EFI_SUCCESS) { | |
| // | |
| // Sec Platform Information2 PPI includes BSP/APs' BIST information | |
| // | |
| NumberOfData = SecPlatformInformation2->NumberOfCpus; | |
| CpuInstance = SecPlatformInformation2->CpuInstance; | |
| } else { | |
| // | |
| // Otherwise, get BIST information from Sec Platform Information Ppi | |
| // | |
| Status = GetBistInfoFromPpi ( | |
| PeiServices, | |
| &gEfiSecPlatformInformationPpiGuid, | |
| &SecInformationDescriptor, | |
| (VOID *)&SecPlatformInformation, | |
| NULL | |
| ); | |
| if (Status == EFI_SUCCESS) { | |
| NumberOfData = 1; | |
| // | |
| // SEC Platform Information only includes BSP's BIST information | |
| // and does not have BSP's APIC ID | |
| // | |
| BspCpuInstance.CpuLocation = GetInitialApicId (); | |
| BspCpuInstance.InfoRecord.IA32HealthFlags.Uint32 = SecPlatformInformation->IA32HealthFlags.Uint32; | |
| CpuInstance = &BspCpuInstance; | |
| } else { | |
| DEBUG ((DEBUG_INFO, "Does not find any stored CPU BIST information from PPI!\n")); | |
| } | |
| } | |
| for (ProcessorNumber = 0; ProcessorNumber < NumberOfProcessors; ProcessorNumber++) { | |
| MpInitLibGetProcessorInfo (ProcessorNumber, &ProcessorInfo, &BistData); | |
| for (CpuIndex = 0; CpuIndex < NumberOfData; CpuIndex++) { | |
| ASSERT (CpuInstance != NULL); | |
| if (ProcessorInfo.ProcessorId == CpuInstance[CpuIndex].CpuLocation) { | |
| // | |
| // Update processor's BIST data if it is already stored before | |
| // | |
| BistData = CpuInstance[CpuIndex].InfoRecord.IA32HealthFlags; | |
| } | |
| } | |
| if (BistData.Uint32 != 0) { | |
| // | |
| // Report Status Code that self test is failed | |
| // | |
| REPORT_STATUS_CODE ( | |
| EFI_ERROR_CODE | EFI_ERROR_MAJOR, | |
| (EFI_COMPUTING_UNIT_HOST_PROCESSOR | EFI_CU_HP_EC_SELF_TEST) | |
| ); | |
| } | |
| DEBUG (( | |
| DEBUG_INFO, | |
| " APICID - 0x%08x, BIST - 0x%08x\n", | |
| (UINT32)ProcessorInfo.ProcessorId, | |
| BistData | |
| )); | |
| CpuInstanceInHob = PlatformInformationRecord2->CpuInstance; | |
| CpuInstanceInHob[ProcessorNumber].CpuLocation = (UINT32)ProcessorInfo.ProcessorId; | |
| CpuInstanceInHob[ProcessorNumber].InfoRecord.IA32HealthFlags = BistData; | |
| } | |
| // | |
| // Build SecPlatformInformation2 PPI GUIDed HOB that also could be consumed | |
| // by CPU MP driver to get CPU BIST data | |
| // | |
| BuildGuidDataHob ( | |
| &gEfiSecPlatformInformation2PpiGuid, | |
| PlatformInformationRecord2, | |
| (UINTN)BistInformationSize | |
| ); | |
| if (SecPlatformInformation2 != NULL) { | |
| if (NumberOfData < NumberOfProcessors) { | |
| // | |
| // Reinstall SecPlatformInformation2 PPI to include new BIST information | |
| // | |
| Status = PeiServicesReInstallPpi ( | |
| SecInformationDescriptor, | |
| &mPeiSecPlatformInformation2Ppi | |
| ); | |
| ASSERT_EFI_ERROR (Status); | |
| } | |
| } else { | |
| // | |
| // Install SecPlatformInformation2 PPI | |
| // | |
| Status = PeiServicesInstallPpi (&mPeiSecPlatformInformation2Ppi); | |
| ASSERT_EFI_ERROR (Status); | |
| } | |
| } |