blob: 6414accfcfb981f48543068593c7b49772bfe9d7 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2014 Google Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef _COMMON_MRC_CACHE_H_
#define _COMMON_MRC_CACHE_H_
#include <stddef.h>
#include <stdint.h>
#define DEFAULT_MRC_CACHE "RW_MRC_CACHE"
#define VARIABLE_MRC_CACHE "RW_VAR_MRC_CACHE"
#define RECOVERY_MRC_CACHE "RECOVERY_MRC_CACHE"
#define UNIFIED_MRC_CACHE "UNIFIED_MRC_CACHE"
/* Wrapper object to save MRC information. */
struct mrc_saved_data {
uint32_t signature;
uint32_t size;
uint32_t checksum;
uint32_t version;
uint8_t data[0];
} __attribute__((packed));
/* Locate the most recently saved MRC data. */
int mrc_cache_get_current(const struct mrc_saved_data **cache);
int mrc_cache_get_current_with_version(const struct mrc_saved_data **cache,
uint32_t version);
int mrc_cache_get_vardata(const struct mrc_saved_data **cache,
uint32_t version);
int mrc_cache_get_current_from_region(const struct mrc_saved_data **cache,
uint32_t version,
const char *region_name);
/* Stash the resulting MRC data to be saved in non-volatile storage later. */
int mrc_cache_stash_data(const void *data, size_t size);
int mrc_cache_stash_data_with_version(const void *data, size_t size,
uint32_t version);
int mrc_cache_stash_vardata(const void *data, size_t size, uint32_t version);
#endif /* _COMMON_MRC_CACHE_H_ */
|
