UefiCpuPkg/MpInitLib: Skip reading PlatformId on AMD processors.

[mirror_edk2.git] / UefiCpuPkg / SecCore / SecBist.c

/** @file\r
  Get SEC platform information(2) PPI and reinstall it.\r
\r
  Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include "SecMain.h"\r
\r
EFI_SEC_PLATFORM_INFORMATION_PPI mSecPlatformInformation = {\r
  SecPlatformInformationBist\r
};\r
\r
EFI_PEI_PPI_DESCRIPTOR mPeiSecPlatformInformation = {\r
  (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r
  &gEfiSecPlatformInformationPpiGuid,\r
  &mSecPlatformInformation\r
};\r
\r
EFI_SEC_PLATFORM_INFORMATION2_PPI mSecPlatformInformation2 = {\r
  SecPlatformInformation2Bist\r
};\r
\r
EFI_PEI_PPI_DESCRIPTOR mPeiSecPlatformInformation2 = {\r
  (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r
  &gEfiSecPlatformInformation2PpiGuid,\r
  &mSecPlatformInformation2\r
};\r
\r
/**\r
  Worker function to parse CPU BIST information from Guided HOB.\r
\r
  @param[in, out] StructureSize     Pointer to the variable describing size of the input buffer.\r
  @param[in, out] StructureBuffer   Pointer to the buffer save CPU BIST information.\r
\r
  @retval EFI_SUCCESS           The data was successfully returned.\r
  @retval EFI_BUFFER_TOO_SMALL  The buffer was too small.\r
\r
**/\r
EFI_STATUS\r
GetBistFromHob (\r
  IN OUT UINT64           *StructureSize,\r
  IN OUT VOID             *StructureBuffer\r
  )\r
{\r
  EFI_HOB_GUID_TYPE       *GuidHob;\r
  VOID                    *DataInHob;\r
  UINTN                   DataSize;\r
\r
  GuidHob = GetFirstGuidHob (&gEfiCallerIdGuid);\r
  if (GuidHob == NULL) {\r
    *StructureSize = 0;\r
    return EFI_SUCCESS;\r
  }\r
\r
  DataInHob = GET_GUID_HOB_DATA (GuidHob);\r
  DataSize  = GET_GUID_HOB_DATA_SIZE (GuidHob);\r
\r
  //\r
  // return the information from BistHob\r
  //\r
  if ((*StructureSize) < (UINT64) DataSize) {\r
    *StructureSize = (UINT64) DataSize;\r
    return EFI_BUFFER_TOO_SMALL;\r
  }\r
\r
  *StructureSize = (UINT64) DataSize;\r
  CopyMem (StructureBuffer, DataInHob, DataSize);\r
  return EFI_SUCCESS;\r
}\r
\r
/**\r
  Implementation of the PlatformInformation service in EFI_SEC_PLATFORM_INFORMATION_PPI.\r
\r
  @param[in]      PeiServices                Pointer to the PEI Services Table.\r
  @param[in, out] StructureSize              Pointer to the variable describing size of the input buffer.\r
  @param[out]     PlatformInformationRecord  Pointer to the EFI_SEC_PLATFORM_INFORMATION_RECORD.\r
\r
  @retval EFI_SUCCESS                    The data was successfully returned.\r
  @retval EFI_BUFFER_TOO_SMALL           The buffer was too small.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
SecPlatformInformationBist (\r
  IN CONST EFI_PEI_SERVICES                  **PeiServices,\r
  IN OUT UINT64                              *StructureSize,\r
     OUT EFI_SEC_PLATFORM_INFORMATION_RECORD *PlatformInformationRecord\r
  )\r
{\r
  return GetBistFromHob (StructureSize, PlatformInformationRecord);\r
}\r
\r
/**\r
  Implementation of the PlatformInformation2 service in EFI_SEC_PLATFORM_INFORMATION2_PPI.\r
\r
  @param[in]      PeiServices                The pointer to the PEI Services Table.\r
  @param[in, out] StructureSize              The pointer to the variable describing size of the input buffer.\r
  @param[out]     PlatformInformationRecord2 The pointer to the EFI_SEC_PLATFORM_INFORMATION_RECORD2.\r
\r
  @retval EFI_SUCCESS                    The data was successfully returned.\r
  @retval EFI_BUFFER_TOO_SMALL           The buffer was too small. The current buffer size needed to\r
                                         hold the record is returned in StructureSize.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
SecPlatformInformation2Bist (\r
  IN CONST EFI_PEI_SERVICES                   **PeiServices,\r
  IN OUT UINT64                               *StructureSize,\r
     OUT EFI_SEC_PLATFORM_INFORMATION_RECORD2 *PlatformInformationRecord2\r
  )\r
{\r
  return GetBistFromHob (StructureSize, PlatformInformationRecord2);\r
}\r
\r
/**\r
  Worker function to get CPUs' BIST by calling SecPlatformInformationPpi\r
  or SecPlatformInformation2Ppi.\r
\r
  @param[in]  PeiServices         Pointer to PEI Services Table\r
  @param[in]  Guid                PPI Guid\r
  @param[out] PpiDescriptor       Return a pointer to instance of the\r
                                  EFI_PEI_PPI_DESCRIPTOR\r
  @param[out] BistInformationData Pointer to BIST information data\r
  @param[out] BistInformationSize Return the size in bytes of BIST information\r
\r
  @retval EFI_SUCCESS         Retrieve of the BIST data successfully\r
  @retval EFI_NOT_FOUND       No sec platform information(2) ppi export\r
  @retval EFI_DEVICE_ERROR    Failed to get CPU Information\r
\r
**/\r
EFI_STATUS\r
GetBistInfoFromPpi (\r
  IN CONST EFI_PEI_SERVICES     **PeiServices,\r
  IN CONST EFI_GUID             *Guid,\r
     OUT EFI_PEI_PPI_DESCRIPTOR **PpiDescriptor,\r
     OUT VOID                   **BistInformationData,\r
     OUT UINT64                 *BistInformationSize OPTIONAL\r
  )\r
{\r
  EFI_STATUS                            Status;\r
  EFI_SEC_PLATFORM_INFORMATION2_PPI     *SecPlatformInformation2Ppi;\r
  EFI_SEC_PLATFORM_INFORMATION_RECORD2  *SecPlatformInformation2;\r
  UINT64                                InformationSize;\r
\r
  Status = PeiServicesLocatePpi (\r
             Guid,                                // GUID\r
             0,                                   // INSTANCE\r
             PpiDescriptor,                       // EFI_PEI_PPI_DESCRIPTOR\r
             (VOID **)&SecPlatformInformation2Ppi // PPI\r
             );\r
  if (Status == EFI_NOT_FOUND) {\r
    return EFI_NOT_FOUND;\r
  }\r
\r
  if (Status == EFI_SUCCESS) {\r
    //\r
    // Get the size of the sec platform information2(BSP/APs' BIST data)\r
    //\r
    InformationSize         = 0;\r
    SecPlatformInformation2 = NULL;\r
    Status = SecPlatformInformation2Ppi->PlatformInformation2 (\r
                                           PeiServices,\r
                                           &InformationSize,\r
                                           SecPlatformInformation2\r
                                           );\r
    if (Status == EFI_BUFFER_TOO_SMALL) {\r
      Status = PeiServicesAllocatePool (\r
                 (UINTN) InformationSize,\r
                 (VOID **) &SecPlatformInformation2\r
                 );\r
      if (Status == EFI_SUCCESS) {\r
        //\r
        // Retrieve BIST data\r
        //\r
        Status = SecPlatformInformation2Ppi->PlatformInformation2 (\r
                                               PeiServices,\r
                                               &InformationSize,\r
                                               SecPlatformInformation2\r
                                               );\r
        if (Status == EFI_SUCCESS) {\r
          *BistInformationData = SecPlatformInformation2;\r
          if (BistInformationSize != NULL) {\r
            *BistInformationSize = InformationSize;\r
          }\r
          return EFI_SUCCESS;\r
        }\r
      }\r
    }\r
  }\r
\r
  return EFI_DEVICE_ERROR;\r
}\r
\r
/**\r
  Get CPUs' BIST by calling SecPlatformInformationPpi/SecPlatformInformation2Ppi.\r
\r
**/\r
VOID\r
RepublishSecPlatformInformationPpi (\r
  VOID\r
  )\r
{\r
  EFI_STATUS                            Status;\r
  CONST EFI_PEI_SERVICES                **PeiServices;\r
  UINT64                                BistInformationSize;\r
  VOID                                  *BistInformationData;\r
  EFI_PEI_PPI_DESCRIPTOR                *SecInformationDescriptor;\r
\r
  PeiServices = GetPeiServicesTablePointer ();\r
  Status = GetBistInfoFromPpi (\r
             PeiServices,\r
             &gEfiSecPlatformInformation2PpiGuid,\r
             &SecInformationDescriptor,\r
             &BistInformationData,\r
             &BistInformationSize\r
             );\r
  if (Status == EFI_SUCCESS) {\r
    BuildGuidDataHob (\r
      &gEfiCallerIdGuid,\r
      BistInformationData,\r
      (UINTN) BistInformationSize\r
      );\r
    //\r
    // The old SecPlatformInformation2 data is on temporary memory.\r
    // After memory discovered, we should never get it from temporary memory,\r
    // or the data will be crashed. So, we reinstall SecPlatformInformation2 PPI here.\r
    //\r
    Status = PeiServicesReInstallPpi (\r
               SecInformationDescriptor,\r
               &mPeiSecPlatformInformation2\r
               );\r
  } if (Status == EFI_NOT_FOUND) {\r
    Status = GetBistInfoFromPpi (\r
               PeiServices,\r
               &gEfiSecPlatformInformationPpiGuid,\r
               &SecInformationDescriptor,\r
               &BistInformationData,\r
               &BistInformationSize\r
               );\r
    if (Status == EFI_SUCCESS) {\r
      BuildGuidDataHob (\r
        &gEfiCallerIdGuid,\r
        BistInformationData,\r
        (UINTN) BistInformationSize\r
        );\r
      //\r
      // The old SecPlatformInformation data is on temporary memory.\r
      // After memory discovered, we should never get it from temporary memory,\r
      // or the data will be crashed. So, we reinstall SecPlatformInformation PPI here.\r
      //\r
      Status = PeiServicesReInstallPpi (\r
                 SecInformationDescriptor,\r
                 &mPeiSecPlatformInformation\r
                 );\r
    } else if (Status == EFI_NOT_FOUND) {\r
      return;\r
    }\r
  }\r
\r
  ASSERT_EFI_ERROR(Status);\r
}\r