mirror of https://github.com/acidanthera/audk.git
87 lines
2.6 KiB
C
87 lines
2.6 KiB
C
/** @file
|
|
This module provide function for ascertaining and updating the boot mode:
|
|
GetBootMode()
|
|
SetBootMode()
|
|
See PI Speicifcation volume I, chapter 9 Boot Paths for addtional information
|
|
on the boot mode.
|
|
|
|
Copyright (c) 2006 - 2008, Intel Corporation
|
|
All rights reserved. This program and the accompanying materials
|
|
are licensed and made available under the terms and conditions of the BSD License
|
|
which accompanies this distribution. The full text of the license may be found at
|
|
http://opensource.org/licenses/bsd-license.php
|
|
|
|
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|
|
|
**/
|
|
|
|
#include <PeiMain.h>
|
|
|
|
/**
|
|
This service enables PEIMs to ascertain the present value of the boot mode.
|
|
|
|
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
|
|
@param BootMode A pointer to contain the value of the boot mode.
|
|
|
|
@retval EFI_SUCCESS The boot mode was returned successfully.
|
|
@retval EFI_INVALID_PARAMETER BootMode is NULL.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
PeiGetBootMode (
|
|
IN CONST EFI_PEI_SERVICES **PeiServices,
|
|
OUT EFI_BOOT_MODE *BootMode
|
|
)
|
|
{
|
|
PEI_CORE_INSTANCE *PrivateData;
|
|
EFI_HOB_HANDOFF_INFO_TABLE *HandOffHob;
|
|
|
|
|
|
if (BootMode == NULL) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS(PeiServices);
|
|
|
|
HandOffHob = (PrivateData->HobList.HandoffInformationTable);
|
|
|
|
*BootMode = HandOffHob->BootMode;
|
|
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
|
|
/**
|
|
This service enables PEIMs to update the boot mode variable.
|
|
|
|
|
|
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
|
|
@param BootMode The value of the boot mode to set.
|
|
|
|
@return EFI_SUCCESS The value was successfully updated
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
PeiSetBootMode (
|
|
IN CONST EFI_PEI_SERVICES **PeiServices,
|
|
IN EFI_BOOT_MODE BootMode
|
|
)
|
|
{
|
|
PEI_CORE_INSTANCE *PrivateData;
|
|
EFI_HOB_HANDOFF_INFO_TABLE *HandOffHob;
|
|
|
|
|
|
PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS(PeiServices);
|
|
|
|
HandOffHob = (PrivateData->HobList.HandoffInformationTable);
|
|
|
|
HandOffHob->BootMode = BootMode;
|
|
|
|
|
|
return EFI_SUCCESS;
|
|
}
|