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77 lines
3.0 KiB
C
77 lines
3.0 KiB
C
/** @file
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This file declares S3 Resume PPI which accomplishes the firmware S3 resume boot path
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and transfers control to OS.
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This PPI is published by the S3 resume PEIM and can be used on the S3 resume boot path to
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restore the platform to its preboot configuration and transfer control to OS. The information that is
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required for an S3 resume can be saved during the normal boot path using
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EFI_ACPI_S3_SAVE_PROTOCOL. This presaved information can then be restored in the S3
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resume boot path using EFI_PEI_S3_RESUME_PPI. Architecturally, the S3 resume PEIM is the
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last PEIM to be dispatched in the S3 resume boot path.
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Before using this PPI, the caller must ensure the necessary information for the S3 resume, such as
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the following, is available for the S3 resume boot path:
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- EFI_ACPI_S3_RESUME_SCRIPT_TABLE script table. Type
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EFI_ACPI_S3_RESUME_SCRIPT_TABLE is defined in the Intel Platform Innovation
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Framework for EFI Boot Script Specification.
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- OS waking vector.
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- The reserved memory range to be used for the S3 resume.
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Otherwise, the S3 resume boot path may fail.
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Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials are licensed and made available under
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the terms and conditions of the BSD License that accompanies this distribution.
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The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php.
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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@par Revision Reference:
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This PPI is defined in Framework for EFI S3 Resume Boot Path spec.
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Version 0.9.
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**/
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#ifndef __PEI_S3_RESUME_PPI_H__
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#define __PEI_S3_RESUME_PPI_H__
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#define EFI_PEI_S3_RESUME_PPI_GUID \
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{ \
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0x4426CCB2, 0xE684, 0x4a8a, {0xAE, 0x40, 0x20, 0xD4, 0xB0, 0x25, 0xB7, 0x10 } \
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}
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typedef struct _EFI_PEI_S3_RESUME_PPI EFI_PEI_S3_RESUME_PPI;
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/**
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Restores the platform to its preboot configuration for an S3 resume and
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jumps to the OS waking vector.
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@param PeiServices The pointer to the PEI Services Table
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@retval EFI_ABORTED Execution of the S3 resume boot script table failed.
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@retval EFI_NOT_FOUND Could not be locate some necessary information that
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is used for the S3 resume boot path d.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_PEI_S3_RESUME_PPI_RESTORE_CONFIG)(
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IN EFI_PEI_SERVICES **PeiServices
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);
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/**
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EFI_PEI_S3_RESUME_PPI accomplishes the firmware S3 resume boot
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path and transfers control to OS.
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**/
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struct _EFI_PEI_S3_RESUME_PPI {
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///
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/// Restores the platform to its preboot configuration for an S3 resume and
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/// jumps to the OS waking vector.
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///
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EFI_PEI_S3_RESUME_PPI_RESTORE_CONFIG S3RestoreConfig;
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};
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extern EFI_GUID gEfiPeiS3ResumePpiGuid;
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#endif
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