mirror of https://github.com/acidanthera/audk.git
Add variablePei module into MdeModulePkg.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2838 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
klu2
parent
de4c8a3080
commit
7ff7768df2
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@ -319,3 +319,4 @@
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#${WORKSPACE}/MdeModulePkg/Universal/FirmwareVolume/GuidedSectionExtraction/Crc32SectionExtract/Dxe/Crc32SectionExtract.inf
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${WORKSPACE}/MdeModulePkg/Bus/Pci/AtapiPassThru/Dxe/AtapiPassThru.inf
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${WORKSPACE}/MdeModulePkg/Universal/WatchDogTimerDxe/WatchDogTimer.inf
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#${WORKSPACE}/MdeModulePkg/Universal/VariablePei/Variable.inf
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@ -0,0 +1,19 @@
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/**@file
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Variable Machine Type
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Copyright (c) 2006 - 2007 Intel Corporation. <BR>
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All rights reserved. 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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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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#ifndef _VAR_MACHINE_H
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#define _VAR_MACHINE_H
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#endif
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@ -0,0 +1,19 @@
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/**@file
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Variable Machine Type
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Copyright (c) 2006 - 2007 Intel Corporation. <BR>
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All rights reserved. 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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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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#ifndef _VAR_MACHINE_H
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#define _VAR_MACHINE_H
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#endif
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@ -0,0 +1,19 @@
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/**@file
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Variable Machine Type
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Copyright (c) 2006 - 2007 Intel Corporation. <BR>
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All rights reserved. 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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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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#ifndef _VAR_MACHINE_H
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#define _VAR_MACHINE_H
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#endif
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@ -0,0 +1,74 @@
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/** @file
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Variable worker functions.
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Copyright (c) 2006, Intel Corporation<BR>
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All rights reserved. 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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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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// The package level header files this module uses
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//
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#include <PiPei.h>
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//
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// The protocols, PPI and GUID defintions for this module
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//
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#include <Ppi/ReadOnlyVariable.h>
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//
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// The Library classes this module consumes
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//
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#include <Library/DebugLib.h>
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#include <Library/PeimEntryPoint.h>
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#include <Library/HobLib.h>
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#include <Library/PcdLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Variable.h>
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/**
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Get one variable by the index count.
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@param IndexTable The pointer to variable index table.
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@param Count The index count of variable in index table.
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@return The pointer to variable header indexed by count.
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**/
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VARIABLE_HEADER *
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GetVariableByIndex (
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IN VARIABLE_INDEX_TABLE *IndexTable,
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IN UINT32 Count
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)
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{
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return (VARIABLE_HEADER *) (UINTN) ((((UINT32)IndexTable->Index[Count]) << 2) + ((UINT32)(UINTN)IndexTable->StartPtr & 0xFFFC0000) );
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}
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/**
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Record Variable in VariableIndex HOB.
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Record Variable in VariableIndex HOB and update the length of variable index table.
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@param IndexTable The pointer to variable index table.
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@param Variable The pointer to the variable that will be recorded.
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@retval VOID
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**/
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VOID
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VariableIndexTableUpdate (
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IN OUT VARIABLE_INDEX_TABLE *IndexTable,
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IN VARIABLE_HEADER *Variable
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)
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{
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IndexTable->Index[IndexTable->Length++] = (UINT16) (((UINT32)(UINTN) Variable) >> 2);
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return;
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}
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@ -0,0 +1,538 @@
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/*++
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Copyright (c) 2006 - 2007 Intel Corporation. <BR>
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All rights reserved. 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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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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Module Name:
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Variable.c
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Abstract:
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Framework PEIM to provide the Variable functionality
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--*/
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//
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// The package level header files this module uses
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//
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#include <PiPei.h>
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//
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// The protocols, PPI and GUID defintions for this module
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//
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#include <Ppi/ReadOnlyVariable.h>
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//
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// The Library classes this module consumes
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//
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#include <Library/DebugLib.h>
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#include <Library/PeimEntryPoint.h>
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#include <Library/HobLib.h>
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#include <Library/PcdLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Variable.h>
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//
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// Module globals
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//
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static EFI_PEI_READ_ONLY_VARIABLE_PPI mVariablePpi = {
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PeiGetVariable,
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PeiGetNextVariableName
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};
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static EFI_PEI_PPI_DESCRIPTOR mPpiListVariable = {
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(EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
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&gEfiPeiReadOnlyVariablePpiGuid,
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&mVariablePpi
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};
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EFI_GUID mEfiVariableIndexTableGuid = EFI_VARIABLE_INDEX_TABLE_GUID;
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EFI_STATUS
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EFIAPI
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PeimInitializeVariableServices (
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IN EFI_FFS_FILE_HEADER *FfsHeader,
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IN EFI_PEI_SERVICES **PeiServices
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)
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/*++
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Routine Description:
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Provide the functionality of the variable services.
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Arguments:
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FfsHeadher - The FFS file header
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PeiServices - General purpose services available to every PEIM.
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Returns:
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Status - EFI_SUCCESS if the interface could be successfully
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installed
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--*/
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{
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//
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// Publish the variable capability to other modules
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//
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return (**PeiServices).InstallPpi (PeiServices, &mPpiListVariable);
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}
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STATIC
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VARIABLE_HEADER *
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GetNextVariablePtr (
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IN VARIABLE_HEADER *Variable
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)
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/*++
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Routine Description:
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This code checks if variable header is valid or not.
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Arguments:
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Variable Pointer to the Variable Header.
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Returns:
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TRUE Variable header is valid.
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FALSE Variable header is not valid.
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--*/
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{
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return (VARIABLE_HEADER *) ((UINTN) GET_VARIABLE_DATA_PTR (Variable) + Variable->DataSize + GET_PAD_SIZE (Variable->DataSize));
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}
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STATIC
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BOOLEAN
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EFIAPI
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IsValidVariableHeader (
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IN VARIABLE_HEADER *Variable
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)
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/*++
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Routine Description:
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This code checks if variable header is valid or not.
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Arguments:
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Variable Pointer to the Variable Header.
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Returns:
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TRUE Variable header is valid.
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FALSE Variable header is not valid.
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--*/
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{
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if (Variable == NULL ||
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Variable->StartId != VARIABLE_DATA ||
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(sizeof (VARIABLE_HEADER) + Variable->DataSize + Variable->NameSize) > MAX_VARIABLE_SIZE
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) {
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return FALSE;
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}
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return TRUE;
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}
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STATIC
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VARIABLE_STORE_STATUS
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EFIAPI
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GetVariableStoreStatus (
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IN VARIABLE_STORE_HEADER *VarStoreHeader
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)
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/*++
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Routine Description:
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This code gets the pointer to the variable name.
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Arguments:
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VarStoreHeader Pointer to the Variable Store Header.
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Returns:
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EfiRaw Variable store is raw
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EfiValid Variable store is valid
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EfiInvalid Variable store is invalid
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--*/
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{
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if (VarStoreHeader->Signature == VARIABLE_STORE_SIGNATURE &&
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VarStoreHeader->Format == VARIABLE_STORE_FORMATTED &&
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VarStoreHeader->State == VARIABLE_STORE_HEALTHY
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) {
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return EfiValid;
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}
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if (VarStoreHeader->Signature == 0xffffffff &&
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VarStoreHeader->Size == 0xffffffff &&
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VarStoreHeader->Format == 0xff &&
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VarStoreHeader->State == 0xff
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) {
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return EfiRaw;
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} else {
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return EfiInvalid;
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}
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}
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STATIC
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EFI_STATUS
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CompareWithValidVariable (
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IN VARIABLE_HEADER *Variable,
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IN CHAR16 *VariableName,
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IN EFI_GUID *VendorGuid,
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OUT VARIABLE_POINTER_TRACK *PtrTrack
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)
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/*++
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Routine Description:
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This function compares a variable with variable entries in database
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Arguments:
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Variable - Pointer to the variable in our database
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VariableName - Name of the variable to compare to 'Variable'
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VendorGuid - GUID of the variable to compare to 'Variable'
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PtrTrack - Variable Track Pointer structure that contains
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Variable Information.
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Returns:
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EFI_SUCCESS - Found match variable
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EFI_NOT_FOUND - Variable not found
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--*/
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{
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if (VariableName[0] == 0) {
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PtrTrack->CurrPtr = Variable;
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return EFI_SUCCESS;
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} else {
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//
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// Don't use CompareGuid function here for performance reasons.
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// Instead we compare the GUID a UINT32 at a time and branch
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// on the first failed comparison.
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//
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if ((((INT32 *) VendorGuid)[0] == ((INT32 *) &Variable->VendorGuid)[0]) &&
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(((INT32 *) VendorGuid)[1] == ((INT32 *) &Variable->VendorGuid)[1]) &&
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(((INT32 *) VendorGuid)[2] == ((INT32 *) &Variable->VendorGuid)[2]) &&
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(((INT32 *) VendorGuid)[3] == ((INT32 *) &Variable->VendorGuid)[3])
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) {
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if (!CompareMem (VariableName, GET_VARIABLE_NAME_PTR (Variable), Variable->NameSize)) {
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PtrTrack->CurrPtr = Variable;
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return EFI_SUCCESS;
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}
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}
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}
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|
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return EFI_NOT_FOUND;
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}
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STATIC
|
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EFI_STATUS
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EFIAPI
|
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FindVariable (
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IN EFI_PEI_SERVICES **PeiServices,
|
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IN CHAR16 *VariableName,
|
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IN EFI_GUID *VendorGuid,
|
||||
OUT VARIABLE_POINTER_TRACK *PtrTrack
|
||||
)
|
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/*++
|
||||
|
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Routine Description:
|
||||
|
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This code finds variable in storage blocks (Non-Volatile)
|
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|
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Arguments:
|
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|
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PeiServices - General purpose services available to every PEIM.
|
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VariableName - Name of the variable to be found
|
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VendorGuid - Vendor GUID to be found.
|
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PtrTrack - Variable Track Pointer structure that contains
|
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Variable Information.
|
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|
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Returns:
|
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|
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EFI_SUCCESS - Variable found successfully
|
||||
EFI_NOT_FOUND - Variable not found
|
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EFI_INVALID_PARAMETER - Invalid variable name
|
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|
||||
--*/
|
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{
|
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EFI_HOB_GUID_TYPE *GuidHob;
|
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VARIABLE_STORE_HEADER *VariableStoreHeader;
|
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VARIABLE_HEADER *Variable;
|
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VARIABLE_HEADER *MaxIndex;
|
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VARIABLE_INDEX_TABLE *IndexTable;
|
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UINT32 Count;
|
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UINT8 *VariableBase;
|
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|
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if (VariableName != 0 && VendorGuid == NULL) {
|
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return EFI_INVALID_PARAMETER;
|
||||
}
|
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//
|
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// No Variable Address equals zero, so 0 as initial value is safe.
|
||||
//
|
||||
MaxIndex = 0;
|
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|
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GuidHob = GetFirstGuidHob (&mEfiVariableIndexTableGuid);
|
||||
if (GuidHob == NULL) {
|
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IndexTable = BuildGuidHob (&mEfiVariableIndexTableGuid, sizeof (VARIABLE_INDEX_TABLE));
|
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IndexTable->Length = 0;
|
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IndexTable->StartPtr = NULL;
|
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IndexTable->EndPtr = NULL;
|
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IndexTable->GoneThrough = 0;
|
||||
} else {
|
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IndexTable = GET_GUID_HOB_DATA (GuidHob);
|
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for (Count = 0; Count < IndexTable->Length; Count++)
|
||||
{
|
||||
MaxIndex = GetVariableByIndex (IndexTable, Count);
|
||||
|
||||
if (CompareWithValidVariable (MaxIndex, VariableName, VendorGuid, PtrTrack) == EFI_SUCCESS) {
|
||||
PtrTrack->StartPtr = IndexTable->StartPtr;
|
||||
PtrTrack->EndPtr = IndexTable->EndPtr;
|
||||
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
}
|
||||
|
||||
if (IndexTable->GoneThrough) {
|
||||
return EFI_NOT_FOUND;
|
||||
}
|
||||
}
|
||||
//
|
||||
// If not found in HOB, then let's start from the MaxIndex we've found.
|
||||
//
|
||||
if (MaxIndex != NULL) {
|
||||
Variable = GetNextVariablePtr (MaxIndex);
|
||||
} else {
|
||||
if (IndexTable->StartPtr || IndexTable->EndPtr) {
|
||||
Variable = IndexTable->StartPtr;
|
||||
} else {
|
||||
VariableBase = (UINT8 *) (UINTN) PcdGet32 (PcdFlashNvStorageVariableBase);
|
||||
VariableStoreHeader = (VARIABLE_STORE_HEADER *) (VariableBase + \
|
||||
((EFI_FIRMWARE_VOLUME_HEADER *) (VariableBase)) -> HeaderLength);
|
||||
|
||||
if (GetVariableStoreStatus (VariableStoreHeader) != EfiValid) {
|
||||
return EFI_UNSUPPORTED;
|
||||
}
|
||||
|
||||
if (~VariableStoreHeader->Size == 0) {
|
||||
return EFI_NOT_FOUND;
|
||||
}
|
||||
//
|
||||
// Find the variable by walk through non-volatile variable store
|
||||
//
|
||||
IndexTable->StartPtr = (VARIABLE_HEADER *) (VariableStoreHeader + 1);
|
||||
IndexTable->EndPtr = (VARIABLE_HEADER *) ((UINTN) VariableStoreHeader + VariableStoreHeader->Size);
|
||||
|
||||
//
|
||||
// Start Pointers for the variable.
|
||||
// Actual Data Pointer where data can be written.
|
||||
//
|
||||
Variable = IndexTable->StartPtr;
|
||||
}
|
||||
}
|
||||
//
|
||||
// Find the variable by walk through non-volatile variable store
|
||||
//
|
||||
PtrTrack->StartPtr = IndexTable->StartPtr;
|
||||
PtrTrack->EndPtr = IndexTable->EndPtr;
|
||||
|
||||
while (IsValidVariableHeader (Variable) && (Variable <= IndexTable->EndPtr)) {
|
||||
if (Variable->State == VAR_ADDED) {
|
||||
//
|
||||
// Record Variable in VariableIndex HOB
|
||||
//
|
||||
if (IndexTable->Length < VARIABLE_INDEX_TABLE_VOLUME)
|
||||
{
|
||||
VariableIndexTableUpdate (IndexTable, Variable);
|
||||
}
|
||||
|
||||
if (CompareWithValidVariable (Variable, VariableName, VendorGuid, PtrTrack) == EFI_SUCCESS) {
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
}
|
||||
|
||||
Variable = GetNextVariablePtr (Variable);
|
||||
}
|
||||
//
|
||||
// If gone through the VariableStore, that means we never find in Firmware any more.
|
||||
//
|
||||
if (IndexTable->Length < VARIABLE_INDEX_TABLE_VOLUME) {
|
||||
IndexTable->GoneThrough = 1;
|
||||
}
|
||||
|
||||
PtrTrack->CurrPtr = NULL;
|
||||
|
||||
return EFI_NOT_FOUND;
|
||||
}
|
||||
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
PeiGetVariable (
|
||||
IN EFI_PEI_SERVICES **PeiServices,
|
||||
IN CHAR16 *VariableName,
|
||||
IN EFI_GUID * VendorGuid,
|
||||
OUT UINT32 *Attributes OPTIONAL,
|
||||
IN OUT UINTN *DataSize,
|
||||
OUT VOID *Data
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
Provide the read variable functionality of the variable services.
|
||||
|
||||
Arguments:
|
||||
|
||||
PeiServices - General purpose services available to every PEIM.
|
||||
|
||||
VariableName - The variable name
|
||||
|
||||
VendorGuid - The vendor's GUID
|
||||
|
||||
Attributes - Pointer to the attribute
|
||||
|
||||
DataSize - Size of data
|
||||
|
||||
Data - Pointer to data
|
||||
|
||||
Returns:
|
||||
|
||||
EFI_SUCCESS - The interface could be successfully installed
|
||||
|
||||
EFI_NOT_FOUND - The variable could not be discovered
|
||||
|
||||
EFI_BUFFER_TOO_SMALL - The caller buffer is not large enough
|
||||
|
||||
--*/
|
||||
{
|
||||
VARIABLE_POINTER_TRACK Variable;
|
||||
UINTN VarDataSize;
|
||||
EFI_STATUS Status;
|
||||
|
||||
if (VariableName == NULL || VendorGuid == NULL) {
|
||||
return EFI_INVALID_PARAMETER;
|
||||
}
|
||||
//
|
||||
// Find existing variable
|
||||
//
|
||||
Status = FindVariable (PeiServices, VariableName, VendorGuid, &Variable);
|
||||
|
||||
if (Variable.CurrPtr == NULL || Status != EFI_SUCCESS) {
|
||||
return Status;
|
||||
}
|
||||
//
|
||||
// Get data size
|
||||
//
|
||||
VarDataSize = Variable.CurrPtr->DataSize;
|
||||
if (*DataSize >= VarDataSize) {
|
||||
(*PeiServices)->CopyMem (Data, GET_VARIABLE_DATA_PTR (Variable.CurrPtr), VarDataSize);
|
||||
|
||||
if (Attributes != NULL) {
|
||||
*Attributes = Variable.CurrPtr->Attributes;
|
||||
}
|
||||
|
||||
*DataSize = VarDataSize;
|
||||
return EFI_SUCCESS;
|
||||
} else {
|
||||
*DataSize = VarDataSize;
|
||||
return EFI_BUFFER_TOO_SMALL;
|
||||
}
|
||||
}
|
||||
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
PeiGetNextVariableName (
|
||||
IN EFI_PEI_SERVICES **PeiServices,
|
||||
IN OUT UINTN *VariableNameSize,
|
||||
IN OUT CHAR16 *VariableName,
|
||||
IN OUT EFI_GUID *VendorGuid
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
Provide the get next variable functionality of the variable services.
|
||||
|
||||
Arguments:
|
||||
|
||||
PeiServices - General purpose services available to every PEIM.
|
||||
VariabvleNameSize - The variable name's size.
|
||||
VariableName - A pointer to the variable's name.
|
||||
VendorGuid - A pointer to the EFI_GUID structure.
|
||||
|
||||
VariableNameSize - Size of the variable name
|
||||
|
||||
VariableName - The variable name
|
||||
|
||||
VendorGuid - The vendor's GUID
|
||||
|
||||
Returns:
|
||||
|
||||
EFI_SUCCESS - The interface could be successfully installed
|
||||
|
||||
EFI_NOT_FOUND - The variable could not be discovered
|
||||
|
||||
--*/
|
||||
{
|
||||
VARIABLE_POINTER_TRACK Variable;
|
||||
UINTN VarNameSize;
|
||||
EFI_STATUS Status;
|
||||
|
||||
if (VariableName == NULL) {
|
||||
return EFI_INVALID_PARAMETER;
|
||||
}
|
||||
|
||||
Status = FindVariable (PeiServices, VariableName, VendorGuid, &Variable);
|
||||
|
||||
if (Variable.CurrPtr == NULL || Status != EFI_SUCCESS) {
|
||||
return Status;
|
||||
}
|
||||
|
||||
if (VariableName[0] != 0) {
|
||||
//
|
||||
// If variable name is not NULL, get next variable
|
||||
//
|
||||
Variable.CurrPtr = GetNextVariablePtr (Variable.CurrPtr);
|
||||
}
|
||||
|
||||
while (!(Variable.CurrPtr >= Variable.EndPtr || Variable.CurrPtr == NULL)) {
|
||||
if (IsValidVariableHeader (Variable.CurrPtr)) {
|
||||
if (Variable.CurrPtr->State == VAR_ADDED) {
|
||||
VarNameSize = (UINTN) Variable.CurrPtr->NameSize;
|
||||
if (VarNameSize <= *VariableNameSize) {
|
||||
(*PeiServices)->CopyMem (VariableName, GET_VARIABLE_NAME_PTR (Variable.CurrPtr), VarNameSize);
|
||||
|
||||
(*PeiServices)->CopyMem (VendorGuid, &Variable.CurrPtr->VendorGuid, sizeof (EFI_GUID));
|
||||
|
||||
Status = EFI_SUCCESS;
|
||||
} else {
|
||||
Status = EFI_BUFFER_TOO_SMALL;
|
||||
}
|
||||
|
||||
*VariableNameSize = VarNameSize;
|
||||
return Status;
|
||||
//
|
||||
// Variable is found
|
||||
//
|
||||
} else {
|
||||
Variable.CurrPtr = GetNextVariablePtr (Variable.CurrPtr);
|
||||
}
|
||||
} else {
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return EFI_NOT_FOUND;
|
||||
}
|
||||
|
|
@ -0,0 +1,32 @@
|
|||
/*++
|
||||
|
||||
Copyright (c) 2006, 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.
|
||||
|
||||
Module Name:
|
||||
|
||||
Variable.dxs
|
||||
|
||||
Abstract:
|
||||
|
||||
Dependency expression file for Variable PEIM.
|
||||
|
||||
--*/
|
||||
//
|
||||
// Include common header file for this module.
|
||||
//
|
||||
#include "CommonHeader.h"
|
||||
|
||||
#include <PeimDepex.h>
|
||||
|
||||
DEPENDENCY_START
|
||||
TRUE
|
||||
DEPENDENCY_END
|
||||
|
||||
|
||||
|
|
@ -0,0 +1,184 @@
|
|||
/*++
|
||||
|
||||
Copyright (c) 2006 - 2007, 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.
|
||||
|
||||
Module Name:
|
||||
|
||||
Variable.h
|
||||
|
||||
Abstract:
|
||||
|
||||
Tiano PEIM to provide the variable functionality
|
||||
|
||||
--*/
|
||||
|
||||
#ifndef _PEI_VARIABLE_H
|
||||
#define _PEI_VARIABLE_H
|
||||
|
||||
//
|
||||
// BugBug: We need relcate the head file.
|
||||
//
|
||||
#include <Common/Variable.h>
|
||||
#include <VarMachine.h>
|
||||
|
||||
//
|
||||
// Define GET_PAD_SIZE to optimize compiler
|
||||
//
|
||||
#if ((ALIGNMENT == 0) || (ALIGNMENT == 1))
|
||||
#define GET_PAD_SIZE(a) (0)
|
||||
#else
|
||||
#define GET_PAD_SIZE(a) (((~a) + 1) & (ALIGNMENT - 1))
|
||||
#endif
|
||||
|
||||
#define GET_VARIABLE_NAME_PTR(a) (CHAR16 *) ((UINTN) (a) + sizeof (VARIABLE_HEADER))
|
||||
|
||||
#define GET_VARIABLE_DATA_PTR(a) \
|
||||
(UINT8 *) ((UINTN) GET_VARIABLE_NAME_PTR (a) + (a)->NameSize + GET_PAD_SIZE ((a)->NameSize))
|
||||
|
||||
typedef struct {
|
||||
VARIABLE_HEADER *CurrPtr;
|
||||
VARIABLE_HEADER *EndPtr;
|
||||
VARIABLE_HEADER *StartPtr;
|
||||
} VARIABLE_POINTER_TRACK;
|
||||
|
||||
#define VARIABLE_INDEX_TABLE_VOLUME 122
|
||||
|
||||
#define EFI_VARIABLE_INDEX_TABLE_GUID \
|
||||
{ 0x8cfdb8c8, 0xd6b2, 0x40f3, { 0x8e, 0x97, 0x02, 0x30, 0x7c, 0xc9, 0x8b, 0x7c } }
|
||||
|
||||
typedef struct {
|
||||
UINT16 Length;
|
||||
UINT16 GoneThrough;
|
||||
VARIABLE_HEADER *EndPtr;
|
||||
VARIABLE_HEADER *StartPtr;
|
||||
UINT16 Index[VARIABLE_INDEX_TABLE_VOLUME];
|
||||
} VARIABLE_INDEX_TABLE;
|
||||
|
||||
|
||||
//
|
||||
// Functions
|
||||
//
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
PeimInitializeVariableServices (
|
||||
IN EFI_FFS_FILE_HEADER *FfsHeader,
|
||||
IN EFI_PEI_SERVICES **PeiServices
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
TODO: Add function description
|
||||
|
||||
Arguments:
|
||||
|
||||
FfsHeader - TODO: add argument description
|
||||
PeiServices - TODO: add argument description
|
||||
|
||||
Returns:
|
||||
|
||||
TODO: add return values
|
||||
|
||||
--*/
|
||||
;
|
||||
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
PeiGetVariable (
|
||||
IN EFI_PEI_SERVICES **PeiServices,
|
||||
IN CHAR16 *VariableName,
|
||||
IN EFI_GUID * VendorGuid,
|
||||
OUT UINT32 *Attributes OPTIONAL,
|
||||
IN OUT UINTN *DataSize,
|
||||
OUT VOID *Data
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
TODO: Add function description
|
||||
|
||||
Arguments:
|
||||
|
||||
PeiServices - TODO: add argument description
|
||||
VariableName - TODO: add argument description
|
||||
VendorGuid - TODO: add argument description
|
||||
Attributes - TODO: add argument description
|
||||
DataSize - TODO: add argument description
|
||||
Data - TODO: add argument description
|
||||
|
||||
Returns:
|
||||
|
||||
TODO: add return values
|
||||
|
||||
--*/
|
||||
;
|
||||
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
PeiGetNextVariableName (
|
||||
IN EFI_PEI_SERVICES **PeiServices,
|
||||
IN OUT UINTN *VariableNameSize,
|
||||
IN OUT CHAR16 *VariableName,
|
||||
IN OUT EFI_GUID *VendorGuid
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
TODO: Add function description
|
||||
|
||||
Arguments:
|
||||
|
||||
PeiServices - TODO: add argument description
|
||||
VariableNameSize - TODO: add argument description
|
||||
VariableName - TODO: add argument description
|
||||
VendorGuid - TODO: add argument description
|
||||
|
||||
Returns:
|
||||
|
||||
TODO: add return values
|
||||
|
||||
--*/
|
||||
;
|
||||
|
||||
/**
|
||||
Get one variable by the index count.
|
||||
|
||||
@param IndexTable The pointer to variable index table.
|
||||
@param Count The index count of variable in index table.
|
||||
|
||||
@return The pointer to variable header indexed by count.
|
||||
|
||||
**/
|
||||
VARIABLE_HEADER *
|
||||
GetVariableByIndex (
|
||||
IN VARIABLE_INDEX_TABLE *IndexTable,
|
||||
IN UINT32 Count
|
||||
);
|
||||
|
||||
/**
|
||||
Record Variable in VariableIndex HOB.
|
||||
|
||||
Record Variable in VariableIndex HOB and update the length of variable index table.
|
||||
|
||||
@param IndexTable The pointer to variable index table.
|
||||
@param Variable The pointer to the variable that will be recorded.
|
||||
|
||||
@retval VOID
|
||||
|
||||
**/
|
||||
VOID
|
||||
VariableIndexTableUpdate (
|
||||
IN OUT VARIABLE_INDEX_TABLE *IndexTable,
|
||||
IN VARIABLE_HEADER *Variable
|
||||
);
|
||||
|
||||
#endif // _PEI_VARIABLE_H
|
||||
|
|
@ -0,0 +1,126 @@
|
|||
#/** @file
|
||||
# Component description file for PeiVariable module.
|
||||
#
|
||||
# Framework PEIM to provide the Variable functionality.
|
||||
# Copyright (c) 2006 - 2007, 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.
|
||||
#
|
||||
#
|
||||
#**/
|
||||
|
||||
################################################################################
|
||||
#
|
||||
# Defines Section - statements that will be processed to create a Makefile.
|
||||
#
|
||||
################################################################################
|
||||
[Defines]
|
||||
INF_VERSION = 0x00010005
|
||||
BASE_NAME = PeiVariable
|
||||
FILE_GUID = 34C8C28F-B61C-45a2-8F2E-89E46BECC63B
|
||||
MODULE_TYPE = PEIM
|
||||
VERSION_STRING = 1.0
|
||||
EDK_RELEASE_VERSION = 0x00020000
|
||||
EFI_SPECIFICATION_VERSION = 0x00020000
|
||||
|
||||
ENTRY_POINT = PeimInitializeVariableServices
|
||||
|
||||
#
|
||||
# The following information is for reference only and not required by the build tools.
|
||||
#
|
||||
# VALID_ARCHITECTURES = IA32 X64 IPF EBC
|
||||
#
|
||||
|
||||
################################################################################
|
||||
#
|
||||
# Sources Section - list of files that are required for the build to succeed.
|
||||
#
|
||||
################################################################################
|
||||
|
||||
[Sources.common]
|
||||
Variable.dxs
|
||||
Variable.c
|
||||
Variable.h
|
||||
|
||||
[Sources.Ia32]
|
||||
Ia32/VarMachine.h
|
||||
VariableWorker.c
|
||||
|
||||
[Sources.X64]
|
||||
x64/VarMachine.h
|
||||
VariableWorker.c
|
||||
|
||||
[Sources.IPF]
|
||||
Ipf/VarMachine.h
|
||||
Ipf/VariableWorker.c
|
||||
|
||||
[Sources.EBC]
|
||||
Ebc/VarMachine.h
|
||||
VariableWorker.c
|
||||
|
||||
|
||||
################################################################################
|
||||
#
|
||||
# Includes Section - list of Include locations that are required for
|
||||
# this module.
|
||||
#
|
||||
################################################################################
|
||||
|
||||
[Includes]
|
||||
$(WORKSPACE)/MdePkg/Include/Library
|
||||
|
||||
################################################################################
|
||||
#
|
||||
# Package Dependency Section - list of Package files that are required for
|
||||
# this module.
|
||||
#
|
||||
################################################################################
|
||||
|
||||
[Packages]
|
||||
MdeModulePkg/MdeModulePkg.dec
|
||||
MdePkg/MdePkg.dec
|
||||
IntelFrameworkPkg/IntelFrameworkPkg.dec
|
||||
|
||||
|
||||
################################################################################
|
||||
#
|
||||
# Library Class Section - list of Library Classes that are required for
|
||||
# this module.
|
||||
#
|
||||
################################################################################
|
||||
|
||||
[LibraryClasses]
|
||||
BaseMemoryLib
|
||||
PcdLib
|
||||
HobLib
|
||||
PeimEntryPoint
|
||||
DebugLib
|
||||
|
||||
|
||||
################################################################################
|
||||
#
|
||||
# PPI C Name Section - list of PPI and PPI Notify C Names that this module
|
||||
# uses or produces.
|
||||
#
|
||||
################################################################################
|
||||
|
||||
[Ppis]
|
||||
gEfiPeiReadOnlyVariablePpiGuid # PPI ALWAYS_CONSUMED
|
||||
|
||||
|
||||
################################################################################
|
||||
#
|
||||
# Pcd DYNAMIC - list of PCDs that this module is coded for.
|
||||
#
|
||||
################################################################################
|
||||
|
||||
[PcdsDynamic.common]
|
||||
PcdFlashNvStorageVariableBase|gEfiGenericPlatformTokenSpaceGuid
|
||||
|
||||
[depex]
|
||||
TRUE
|
||||
|
|
@ -0,0 +1,76 @@
|
|||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<ModuleSurfaceArea xmlns="http://www.TianoCore.org/2006/Edk2.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
|
||||
<MsaHeader>
|
||||
<ModuleName>PeiVariable</ModuleName>
|
||||
<ModuleType>PEIM</ModuleType>
|
||||
<GuidValue>34C8C28F-B61C-45a2-8F2E-89E46BECC63B</GuidValue>
|
||||
<Version>1.0</Version>
|
||||
<Abstract>Component description file for PeiVariable module.</Abstract>
|
||||
<Description>Framework PEIM to provide the Variable functionality.</Description>
|
||||
<Copyright>Copyright (c) 2006 - 2007, Intel Corporation</Copyright>
|
||||
<License>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.</License>
|
||||
<Specification>FRAMEWORK_BUILD_PACKAGING_SPECIFICATION 0x00000052</Specification>
|
||||
</MsaHeader>
|
||||
<ModuleDefinitions>
|
||||
<SupportedArchitectures>IA32 X64 IPF EBC</SupportedArchitectures>
|
||||
<BinaryModule>false</BinaryModule>
|
||||
<OutputFileBasename>PeiVariable</OutputFileBasename>
|
||||
</ModuleDefinitions>
|
||||
<LibraryClassDefinitions>
|
||||
<LibraryClass Usage="ALWAYS_CONSUMED">
|
||||
<Keyword>DebugLib</Keyword>
|
||||
</LibraryClass>
|
||||
<LibraryClass Usage="ALWAYS_CONSUMED">
|
||||
<Keyword>PeimEntryPoint</Keyword>
|
||||
</LibraryClass>
|
||||
<LibraryClass Usage="ALWAYS_CONSUMED">
|
||||
<Keyword>HobLib</Keyword>
|
||||
</LibraryClass>
|
||||
<LibraryClass Usage="ALWAYS_CONSUMED">
|
||||
<Keyword>PcdLib</Keyword>
|
||||
</LibraryClass>
|
||||
<LibraryClass Usage="ALWAYS_CONSUMED">
|
||||
<Keyword>BaseMemoryLib</Keyword>
|
||||
</LibraryClass>
|
||||
</LibraryClassDefinitions>
|
||||
<SourceFiles>
|
||||
<Filename>Variable.h</Filename>
|
||||
<Filename>Variable.c</Filename>
|
||||
<Filename>Variable.dxs</Filename>
|
||||
<Filename SupArchList="IA32 X64 EBC">VariableWorker.c</Filename>
|
||||
<Filename SupArchList="IPF">Ipf/VariableWorker.c</Filename>
|
||||
<Filename SupArchList="IA32">Ia32/VarMachine.h</Filename>
|
||||
<Filename SupArchList="EBC">Ebc/VarMachine.h</Filename>
|
||||
<Filename SupArchList="X64">x64/VarMachine.h</Filename>
|
||||
<Filename SupArchList="IPF">Ipf/VarMachine.h</Filename>
|
||||
</SourceFiles>
|
||||
<PackageDependencies>
|
||||
<Package PackageGuid="5e0e9358-46b6-4ae2-8218-4ab8b9bbdcec"/>
|
||||
<Package PackageGuid="68169ab0-d41b-4009-9060-292c253ac43d"/>
|
||||
</PackageDependencies>
|
||||
<PPIs>
|
||||
<Ppi Usage="ALWAYS_CONSUMED">
|
||||
<PpiCName>gEfiPeiReadOnlyVariablePpiGuid</PpiCName>
|
||||
</Ppi>
|
||||
</PPIs>
|
||||
<Externs>
|
||||
<Specification>EFI_SPECIFICATION_VERSION 0x00020000</Specification>
|
||||
<Specification>EDK_RELEASE_VERSION 0x00020000</Specification>
|
||||
<Extern>
|
||||
<ModuleEntryPoint>PeimInitializeVariableServices</ModuleEntryPoint>
|
||||
</Extern>
|
||||
</Externs>
|
||||
<PcdCoded>
|
||||
<PcdEntry PcdItemType="DYNAMIC">
|
||||
<C_Name>PcdFlashNvStorageVariableBase</C_Name>
|
||||
<TokenSpaceGuidCName>gEfiGenericPlatformTokenSpaceGuid</TokenSpaceGuidCName>
|
||||
<HelpText>The driver gets the Variable store base address from this PCD. This base address point to
|
||||
an EFI_FIRMWARE_VOLUMN_HEADER struct.</HelpText>
|
||||
</PcdEntry>
|
||||
</PcdCoded>
|
||||
</ModuleSurfaceArea>
|
||||
|
|
@ -0,0 +1,81 @@
|
|||
/*++
|
||||
|
||||
Copyright (c) 2007, 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.
|
||||
|
||||
Module Name:
|
||||
|
||||
VariableWorker.c
|
||||
|
||||
Abstract:
|
||||
|
||||
Framework PEIM to provide the Variable functionality
|
||||
|
||||
--*/
|
||||
//
|
||||
// The package level header files this module uses
|
||||
//
|
||||
#include <PiPei.h>
|
||||
|
||||
//
|
||||
// The protocols, PPI and GUID defintions for this module
|
||||
//
|
||||
#include <Ppi/ReadOnlyVariable.h>
|
||||
//
|
||||
// The Library classes this module consumes
|
||||
//
|
||||
#include <Library/DebugLib.h>
|
||||
#include <Library/PeimEntryPoint.h>
|
||||
#include <Library/HobLib.h>
|
||||
#include <Library/PcdLib.h>
|
||||
#include <Library/BaseMemoryLib.h>
|
||||
|
||||
|
||||
#include <Variable.h>
|
||||
|
||||
/**
|
||||
Get one variable by the index count.
|
||||
|
||||
@param IndexTable The pointer to variable index table.
|
||||
@param Count The index count of variable in index table.
|
||||
|
||||
@return The pointer to variable header indexed by count.
|
||||
|
||||
**/
|
||||
VARIABLE_HEADER *
|
||||
GetVariableByIndex (
|
||||
IN VARIABLE_INDEX_TABLE *IndexTable,
|
||||
IN UINT32 Count
|
||||
)
|
||||
{
|
||||
return (VARIABLE_HEADER *) (UINTN) (IndexTable->Index[Count] + ((UINTN) IndexTable->StartPtr & 0xFFFF0000));
|
||||
}
|
||||
|
||||
/**
|
||||
Record Variable in VariableIndex HOB.
|
||||
|
||||
Record Variable in VariableIndex HOB and update the length of variable index table.
|
||||
|
||||
@param IndexTable The pointer to variable index table.
|
||||
@param Variable The pointer to the variable that will be recorded.
|
||||
|
||||
@retval VOID
|
||||
|
||||
**/
|
||||
VOID
|
||||
VariableIndexTableUpdate (
|
||||
IN OUT VARIABLE_INDEX_TABLE *IndexTable,
|
||||
IN VARIABLE_HEADER *Variable
|
||||
)
|
||||
{
|
||||
IndexTable->Index[IndexTable->Length++] = (UINT16) (UINTN) Variable;
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
|
|
@ -0,0 +1,19 @@
|
|||
/**@file
|
||||
Variable Machine Type
|
||||
|
||||
Copyright (c) 2006 - 2007 Intel Corporation. <BR>
|
||||
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.
|
||||
|
||||
**/
|
||||
|
||||
#ifndef _VAR_MACHINE_H
|
||||
#define _VAR_MACHINE_H
|
||||
|
||||
|
||||
#endif
|
||||
|
|
@ -430,3 +430,4 @@
|
|||
#${WORKSPACE}/MdeModulePkg/Universal/FirmwareVolume/GuidedSectionExtraction/Crc32SectionExtract/Dxe/Crc32SectionExtract.inf
|
||||
${WORKSPACE}/MdeModulePkg/Bus/Pci/AtapiPassThru/Dxe/AtapiPassThru.inf
|
||||
${WORKSPACE}/MdeModulePkg/Universal/WatchDogTimerDxe/WatchDogTimer.inf
|
||||
#${WORKSPACE}/MdeModulePkg/Universal/VariablePei/Variable.inf
|
||||
Loading…
Reference in New Issue