3 Copyright (c) 2006 - 2007, Intel Corporation
4 All rights reserved. This program and the accompanying materials
5 are licensed and made available under the terms and conditions of the BSD License
6 which accompanies this distribution. The full text of the license may be found at
7 http://opensource.org/licenses/bsd-license.php
9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
14 #ifndef _PEI_VARIABLE_H
15 #define _PEI_VARIABLE_H
18 #include <Ppi/ReadOnlyVariable.h>
19 #include <Ppi/ReadOnlyVariable2.h>
20 #include <Library/DebugLib.h>
21 #include <Library/PeimEntryPoint.h>
22 #include <Library/HobLib.h>
23 #include <Library/PcdLib.h>
24 #include <Library/BaseMemoryLib.h>
25 #include <Library/PeiServicesTablePointerLib.h>
26 #include <VariableFormat.h>
29 // Define GET_PAD_SIZE to optimize compiler
31 #if ((ALIGNMENT == 0) || (ALIGNMENT == 1))
32 #define GET_PAD_SIZE(a) (0)
34 #define GET_PAD_SIZE(a) (((~a) + 1) & (ALIGNMENT - 1))
37 #define HEADER_ALIGN(Header) (((UINTN) (Header) + HEADER_ALIGNMENT - 1) & (~(HEADER_ALIGNMENT - 1)))
40 VARIABLE_HEADER
*CurrPtr
;
41 VARIABLE_HEADER
*EndPtr
;
42 VARIABLE_HEADER
*StartPtr
;
43 } VARIABLE_POINTER_TRACK
;
45 #define VARIABLE_INDEX_TABLE_VOLUME 122
47 #define EFI_VARIABLE_INDEX_TABLE_GUID \
48 { 0x8cfdb8c8, 0xd6b2, 0x40f3, { 0x8e, 0x97, 0x02, 0x30, 0x7c, 0xc9, 0x8b, 0x7c } }
53 VARIABLE_HEADER
*EndPtr
;
54 VARIABLE_HEADER
*StartPtr
;
55 UINT16 Index
[VARIABLE_INDEX_TABLE_VOLUME
];
56 } VARIABLE_INDEX_TABLE
;
64 PeimInitializeVariableServices (
65 IN EFI_FFS_FILE_HEADER
*FfsHeader
,
66 IN EFI_PEI_SERVICES
**PeiServices
72 IN EFI_PEI_SERVICES
**PeiServices
,
73 IN CHAR16
*VariableName
,
74 IN EFI_GUID
* VendorGuid
,
75 OUT UINT32
*Attributes OPTIONAL
,
76 IN OUT UINTN
*DataSize
,
83 IN CONST EFI_PEI_READ_ONLY_VARIABLE2_PPI
*This
,
84 IN CONST CHAR16
*VariableName
,
85 IN CONST EFI_GUID
*VariableGuid
,
86 OUT UINT32
*Attributes
,
87 IN OUT UINTN
*DataSize
,
93 PeiGetNextVariableName2 (
94 IN CONST EFI_PEI_READ_ONLY_VARIABLE2_PPI
*This
,
95 IN OUT UINTN
*VariableNameSize
,
96 IN OUT CHAR16
*VariableName
,
97 IN OUT EFI_GUID
*VariableGuid
102 PeiGetNextVariableName (
103 IN EFI_PEI_SERVICES
**PeiServices
,
104 IN OUT UINTN
*VariableNameSize
,
105 IN OUT CHAR16
*VariableName
,
106 IN OUT EFI_GUID
*VendorGuid
110 Get one variable by the index count.
112 @param IndexTable The pointer to variable index table.
113 @param Count The index count of variable in index table.
115 @return The pointer to variable header indexed by count.
120 IN VARIABLE_INDEX_TABLE
*IndexTable
,
125 Record Variable in VariableIndex HOB.
127 Record Variable in VariableIndex HOB and update the length of variable index table.
129 @param IndexTable The pointer to variable index table.
130 @param Variable The pointer to the variable that will be recorded.
136 VariableIndexTableUpdate (
137 IN OUT VARIABLE_INDEX_TABLE
*IndexTable
,
138 IN VARIABLE_HEADER
*Variable
141 #endif // _PEI_VARIABLE_H