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42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
/** @file
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The variable data structures are related to EDK II-specific implementation of UEFI variables.
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VariableFormat.h defines variable data headers and variable storage region headers.
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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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#ifndef __VARIABLE_INDEX_TABLE_H__
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#define __VARIABLE_INDEX_TABLE_H__
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typedef struct {
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VARIABLE_HEADER *CurrPtr;
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VARIABLE_HEADER *EndPtr;
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VARIABLE_HEADER *StartPtr;
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} VARIABLE_POINTER_TRACK;
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#define VARIABLE_INDEX_TABLE_VOLUME 122
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#define EFI_VARIABLE_INDEX_TABLE_GUID \
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{ 0x8cfdb8c8, 0xd6b2, 0x40f3, { 0x8e, 0x97, 0x02, 0x30, 0x7c, 0xc9, 0x8b, 0x7c } }
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extern EFI_GUID gEfiVariableIndexTableGuid;
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///
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/// Use this data structure to store variable-related info, which can decrease
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/// the cost of access to NV.
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///
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typedef struct {
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UINT16 Length;
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UINT16 GoneThrough;
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VARIABLE_HEADER *EndPtr;
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VARIABLE_HEADER *StartPtr;
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///
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/// This field is used to store the distance of two neighbouring VAR_ADDED type variables.
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/// The meaning of the field is implement-dependent.
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UINT16 Index[VARIABLE_INDEX_TABLE_VOLUME];
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} VARIABLE_INDEX_TABLE;
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#endif // __VARIABLE_INDEX_TABLE_H__
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