| 1 | /** @file
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| 2 | The variable data structures are related to EDK II-specific implementation of UEFI variables.
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| 3 | VariableFormat.h defines variable data headers and variable storage region headers.
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| 4 |
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| 5 | Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
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| 6 | This program and the accompanying materials are licensed and made available under
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| 7 | the terms and conditions of the BSD License that accompanies this distribution.
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| 8 | The full text of the license may be found at
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| 9 | http://opensource.org/licenses/bsd-license.php.
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| 10 |
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| 11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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| 12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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| 13 |
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| 14 | **/
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| 15 |
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| 16 | #ifndef __VARIABLE_INDEX_TABLE_H__
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| 17 | #define __VARIABLE_INDEX_TABLE_H__
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| 18 |
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| 19 | typedef struct {
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| 20 | VARIABLE_HEADER *CurrPtr;
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| 21 | VARIABLE_HEADER *EndPtr;
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| 22 | VARIABLE_HEADER *StartPtr;
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| 23 | } VARIABLE_POINTER_TRACK;
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| 24 |
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| 25 | #define VARIABLE_INDEX_TABLE_VOLUME 122
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| 26 |
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| 27 | #define EFI_VARIABLE_INDEX_TABLE_GUID \
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| 28 | { 0x8cfdb8c8, 0xd6b2, 0x40f3, { 0x8e, 0x97, 0x02, 0x30, 0x7c, 0xc9, 0x8b, 0x7c } }
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| 29 |
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| 30 | extern EFI_GUID gEfiVariableIndexTableGuid;
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| 31 |
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| 32 | ///
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| 33 | /// Use this data structure to store variable-related info, which can decrease
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| 34 | /// the cost of access to NV.
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| 35 | ///
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| 36 | typedef struct {
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| 37 | UINT16 Length;
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| 38 | UINT16 GoneThrough;
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| 39 | VARIABLE_HEADER *EndPtr;
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| 40 | VARIABLE_HEADER *StartPtr;
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| 41 | ///
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| 42 | /// This field is used to store the distance of two neighbouring VAR_ADDED type variables.
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| 43 | /// The meaning of the field is implement-dependent.
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| 44 | UINT16 Index[VARIABLE_INDEX_TABLE_VOLUME];
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| 45 | } VARIABLE_INDEX_TABLE;
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| 46 |
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| 47 | #endif // __VARIABLE_INDEX_TABLE_H__
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