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[mirror_edk2.git] / IntelFrameworkModulePkg / Library / PeiS3Lib / PeiS3Lib.c

/** @file\r
  This library provides API to invoke the S3 resume vector in the APCI Table in S3 resume mode. \r
  This library instance is only for PEI phase use and the APIs in this instance\r
\r
Copyright (c) 2006 - 2008 Intel Corporation\r
All rights reserved. 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
\r
**/\r
#include <FrameworkPei.h>\r
#include <Library/PeiServicesLib.h>\r
#include <Library/PeiServicesTablePointerLib.h>\r
#include <Library/DebugLib.h>\r
\r
#include <Ppi/S3Resume.h>\r
\r
/**\r
  This function is responsible for calling the S3 resume vector in the ACPI Tables.\r
  \r
  @retval EFI_SUCESS   Sucess to restore config from S3.\r
  @retval Others       Fail to restore config from S3.\r
**/\r
EFI_STATUS\r
EFIAPI\r
AcpiS3ResumeOs (\r
  VOID\r
  )\r
{\r
  EFI_STATUS              Status;\r
  EFI_PEI_S3_RESUME_PPI   *S3Resume;\r
  \r
  Status = PeiServicesLocatePpi (\r
             &gEfiPeiS3ResumePpiGuid,\r
             0,\r
             NULL,\r
             (VOID **)&S3Resume\r
             );\r
  ASSERT_EFI_ERROR (Status);\r
\r
  return S3Resume->S3RestoreConfig ((EFI_PEI_SERVICES  **) GetPeiServicesTablePointer()); \r
}\r
\r