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1 | /**@file\r |
| 2 | Header file for EFI Variable Services.\r |
| 3 | \r |
| 4 | Copyright (c) 2006 - 2007 Intel Corporation. <BR>\r |
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5 | All rights reserved. This program and the accompanying materials \r |
| 6 | are licensed and made available under the terms and conditions of the BSD License \r |
| 7 | which accompanies this distribution. The full text of the license may be found at \r |
| 8 | http://opensource.org/licenses/bsd-license.php \r |
| 9 | \r |
| 10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r |
| 11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r |
| 12 | \r |
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13 | **/\r |
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14 | \r |
| 15 | #ifndef _EFI_VARIABLE_H_\r |
| 16 | #define _EFI_VARIABLE_H_\r |
| 17 | \r |
| 18 | #define VARIABLE_STORE_SIGNATURE EFI_SIGNATURE_32 ('$', 'V', 'S', 'S')\r |
| 19 | \r |
| 20 | #define MAX_VARIABLE_SIZE 1024\r |
| 21 | \r |
| 22 | #define VARIABLE_DATA 0x55AA\r |
| 23 | \r |
| 24 | //\r |
| 25 | // Variable Store Header flags\r |
| 26 | //\r |
| 27 | #define VARIABLE_STORE_FORMATTED 0x5a\r |
| 28 | #define VARIABLE_STORE_HEALTHY 0xfe\r |
| 29 | \r |
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30 | //\r |
| 31 | // The alignment of variable's start offset.\r |
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32 | // For IA32/X64 architecture, the alignment is set to 1, and \r |
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33 | // 8 is for IPF archtecture.\r |
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34 | //\r |
| 35 | #if defined (MDE_CPU_IPF)\r |
| 36 | #define ALIGNMENT 8\r |
| 37 | #else\r |
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38 | #define ALIGNMENT 1\r |
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39 | #endif\r |
| 40 | \r |
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41 | //\r |
| 42 | // Variable Store Status\r |
| 43 | //\r |
| 44 | typedef enum {\r |
| 45 | EfiRaw,\r |
| 46 | EfiValid,\r |
| 47 | EfiInvalid,\r |
| 48 | EfiUnknown\r |
| 49 | } VARIABLE_STORE_STATUS;\r |
| 50 | \r |
| 51 | //\r |
| 52 | // Variable State flags\r |
| 53 | //\r |
| 54 | #define VAR_IN_DELETED_TRANSITION 0xfe // Variable is in obsolete transistion\r |
| 55 | #define VAR_DELETED 0xfd // Variable is obsolete\r |
| 56 | #define VAR_ADDED 0x7f // Variable has been completely added\r |
| 57 | #define IS_VARIABLE_STATE(_c, _Mask) (BOOLEAN) (((~_c) & (~_Mask)) != 0)\r |
| 58 | \r |
| 59 | #pragma pack(1)\r |
| 60 | \r |
| 61 | typedef struct {\r |
| 62 | UINT32 Signature;\r |
| 63 | UINT32 Size;\r |
| 64 | UINT8 Format;\r |
| 65 | UINT8 State;\r |
| 66 | UINT16 Reserved;\r |
| 67 | UINT32 Reserved1;\r |
| 68 | } VARIABLE_STORE_HEADER;\r |
| 69 | \r |
| 70 | typedef struct {\r |
| 71 | UINT16 StartId;\r |
| 72 | UINT8 State;\r |
| 73 | UINT8 Reserved;\r |
| 74 | UINT32 Attributes;\r |
| 75 | UINT32 NameSize;\r |
| 76 | UINT32 DataSize;\r |
| 77 | EFI_GUID VendorGuid;\r |
| 78 | } VARIABLE_HEADER;\r |
| 79 | \r |
| 80 | #pragma pack()\r |
| 81 | \r |
| 82 | #endif // _EFI_VARIABLE_H_\r |
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