UefiCpuPkg: Move AsmRelocateApLoopStart from Mpfuncs.nasm to AmdSev.nasm

[mirror_edk2.git] / UefiCpuPkg / CpuFeatures / CpuFeaturesPei.c

/** @file\r
  CPU Features PEIM driver to initialize CPU features.\r
\r
  Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include <PiPei.h>\r
\r
#include <Library/BaseLib.h>\r
#include <Library/DebugLib.h>\r
#include <Library/PeiServicesLib.h>\r
#include <Library/RegisterCpuFeaturesLib.h>\r
#include <Library/HobLib.h>\r
\r
#include <Guid/CpuFeaturesInitDone.h>\r
\r
EFI_PEI_PPI_DESCRIPTOR  mPeiCpuFeaturesInitDonePpiDesc = {\r
  (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r
  &gEdkiiCpuFeaturesInitDoneGuid,\r
  NULL\r
};\r
\r
/**\r
  CPU Features driver entry point function.\r
\r
  It will perform CPU features initialization, except for\r
  PcdCpuFeaturesInitOnS3Resume is FALSE on S3 resume.\r
\r
  @param  FileHandle    Handle of the file being invoked.\r
  @param  PeiServices   Describes the list of possible PEI Services.\r
\r
  @retval EFI_SUCCESS   CPU Features is initialized successfully.\r
**/\r
EFI_STATUS\r
EFIAPI\r
CpuFeaturesPeimInitialize (\r
  IN       EFI_PEI_FILE_HANDLE  FileHandle,\r
  IN CONST EFI_PEI_SERVICES     **PeiServices\r
  )\r
{\r
  EFI_STATUS     Status;\r
  EFI_BOOT_MODE  BootMode;\r
\r
  Status = PeiServicesGetBootMode (&BootMode);\r
  ASSERT_EFI_ERROR (Status);\r
\r
  if ((BootMode == BOOT_ON_S3_RESUME) &&\r
      !PcdGetBool (PcdCpuFeaturesInitOnS3Resume))\r
  {\r
    //\r
    // Does nothing when if PcdCpuFeaturesInitOnS3Resume is FLASE\r
    // on S3 boot mode\r
    //\r
    return EFI_SUCCESS;\r
  }\r
\r
  CpuFeaturesDetect ();\r
\r
  CpuFeaturesInitialize ();\r
\r
  //\r
  // Install CPU Features Init Done PPI\r
  //\r
  Status = PeiServicesInstallPpi (&mPeiCpuFeaturesInitDonePpiDesc);\r
  ASSERT_EFI_ERROR (Status);\r
\r
  //\r
  // Build HOB to let CpuFeatureDxe driver skip the initialization process.\r
  //\r
  BuildGuidHob (&gEdkiiCpuFeaturesInitDoneGuid, 0);\r
\r
  return EFI_SUCCESS;\r
}\r