mirror of https://github.com/acidanthera/audk.git
70 lines
1.7 KiB
C
70 lines
1.7 KiB
C
/** @file
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*
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* Copyright (c) 2011, ARM Limited. All rights reserved.
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*
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* This program and the accompanying materials
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* are licensed and made available under the terms and conditions of the BSD License
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* which accompanies this distribution. 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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*
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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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*
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**/
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#include <PiPei.h>
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#include <Library/PrePiHobListPointerLib.h>
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#include <Library/DebugLib.h>
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#include <Library/PcdLib.h>
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//
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// Have to use build system to set the original value in case we are running
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// from FLASH and globals don't work. So if you do a GetHobList() and gHobList
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// and gHobList is NULL the PCD default values are used.
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//
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VOID *gHobList = NULL;
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/**
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Returns the pointer to the HOB list.
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This function returns the pointer to first HOB in the list.
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@return The pointer to the HOB list.
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**/
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VOID *
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EFIAPI
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PrePeiGetHobList (
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VOID
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)
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{
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if (gHobList == NULL) {
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return (VOID *)*(UINTN*)PcdGet32 (PcdPrePiHobBase);
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} else {
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return gHobList;
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}
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}
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/**
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Updates the pointer to the HOB list.
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@param HobList Hob list pointer to store
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**/
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EFI_STATUS
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EFIAPI
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PrePeiSetHobList (
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IN VOID *HobList
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)
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{
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gHobList = HobList;
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//
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// If this code is running from ROM this could fail
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//
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return (gHobList == HobList) ? EFI_SUCCESS: EFI_UNSUPPORTED;
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}
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