mirror of https://github.com/acidanthera/audk.git
76 lines
2.0 KiB
C
76 lines
2.0 KiB
C
/** @file
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This module provide function for ascertaining and updating the boot mode:
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GetBootMode()
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SetBootMode()
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See PI Specification volume I, chapter 9 Boot Paths for additional information
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on the boot mode.
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Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include "PeiMain.h"
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/**
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This service enables PEIMs to ascertain the present value of the boot mode.
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@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
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@param BootMode A pointer to contain the value of the boot mode.
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@retval EFI_SUCCESS The boot mode was returned successfully.
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@retval EFI_INVALID_PARAMETER BootMode is NULL.
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**/
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EFI_STATUS
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EFIAPI
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PeiGetBootMode (
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IN CONST EFI_PEI_SERVICES **PeiServices,
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IN OUT EFI_BOOT_MODE *BootMode
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)
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{
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PEI_CORE_INSTANCE *PrivateData;
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EFI_HOB_HANDOFF_INFO_TABLE *HandOffHob;
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if (BootMode == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS (PeiServices);
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HandOffHob = (PrivateData->HobList.HandoffInformationTable);
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*BootMode = HandOffHob->BootMode;
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return EFI_SUCCESS;
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}
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/**
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This service enables PEIMs to update the boot mode variable.
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@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
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@param BootMode The value of the boot mode to set.
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@return EFI_SUCCESS The value was successfully updated
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**/
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EFI_STATUS
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EFIAPI
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PeiSetBootMode (
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IN CONST EFI_PEI_SERVICES **PeiServices,
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IN EFI_BOOT_MODE BootMode
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)
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{
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PEI_CORE_INSTANCE *PrivateData;
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EFI_HOB_HANDOFF_INFO_TABLE *HandOffHob;
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PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS (PeiServices);
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HandOffHob = (PrivateData->HobList.HandoffInformationTable);
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HandOffHob->BootMode = BootMode;
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return EFI_SUCCESS;
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}
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