Vlv2TbltDevicePkg: Build full UEFI Shell from sources

[mirror_edk2.git] / Vlv2TbltDevicePkg / PlatformCpuInfoDxe / PlatformCpuInfoDxe.c

/** @file\r
\r
  Copyright (c) 2004  - 2014, Intel Corporation. All rights reserved.<BR>\r
                                                                                   \r\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
                                                                                   \r\r
\r
Module Name:\r
\r
  PlatformCpuInfoDxe.c\r
\r
Abstract:\r
  Platform Cpu Info driver to public platform related HOB data\r
\r
--*/\r
\r
#include "PlatformCpuInfoDxe.h"\r
\r
CHAR16    EfiPlatformCpuInfoVariable[] = L"PlatformCpuInfo";\r
\r
EFI_STATUS\r
EFIAPI\r
PlatformCpuInfoInit (\r
  IN EFI_HANDLE                         ImageHandle,\r
  IN EFI_SYSTEM_TABLE                   *SystemTable\r
  )\r
{\r
  EFI_STATUS                  Status;\r
  EFI_PLATFORM_CPU_INFO       *PlatformCpuInfoPtr;\r
  EFI_PEI_HOB_POINTERS        GuidHob;\r
\r
  //\r
  // Get Platform Cpu Info HOB\r
  //\r
  GuidHob.Raw = GetHobList ();\r
  while ((GuidHob.Raw = GetNextGuidHob (&gEfiPlatformCpuInfoGuid, GuidHob.Raw)) != NULL) {\r
    PlatformCpuInfoPtr = GET_GUID_HOB_DATA (GuidHob.Guid);\r
    GuidHob.Raw = GET_NEXT_HOB (GuidHob);\r
\r
      //\r
      // Write the Platform CPU Info to volatile memory for runtime purposes.\r
      // This must be done in its own driver because SetVariable protocol is dependent on chipset,\r
      // which is dependent on CpuIo, PlatformInfo, and Metronome.\r
      //\r
      Status = gRT->SetVariable(\r
                      EfiPlatformCpuInfoVariable,\r
                      &gEfiVlv2VariableGuid,\r
                      EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r
                      sizeof(EFI_PLATFORM_CPU_INFO),\r
                      PlatformCpuInfoPtr\r
                      );\r
      if (EFI_ERROR(Status)) {\r
        return Status;\r
      }\r
  }\r
\r
   return EFI_SUCCESS;\r
}\r
\r