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
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
/*
* This file is part of the coreboot project.
*
* Copyright 2015 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.
*/
#include <assets.h>
#include <boot_device.h>
#include <cbfs.h>
#include <console/console.h>
#include <rules.h>
#include <stdlib.h>
#define DEFAULT_CBFS_PROVIDER_PRESENT \
(!ENV_VERSTAGE || (ENV_VERSTAGE && !CONFIG_RETURN_FROM_VERSTAGE))
#if DEFAULT_CBFS_PROVIDER_PRESENT
static int cbfs_boot_asset_locate(struct asset *asset)
{
struct cbfsf file;
if (cbfs_boot_locate(&file, asset_name(asset), NULL))
return -1;
cbfs_file_data(asset_rdev(asset), &file);
return 0;
}
static const struct asset_provider cbfs_default_provider = {
.name = "CBFS",
.locate = cbfs_boot_asset_locate,
};
#endif
extern const struct asset_provider vboot_provider;
static const struct asset_provider *providers[] = {
#if CONFIG_VBOOT_VERIFY_FIRMWARE
&vboot_provider,
#endif
#if DEFAULT_CBFS_PROVIDER_PRESENT
&cbfs_default_provider,
#endif
};
int asset_locate(struct asset *asset)
{
int i;
boot_device_init();
for (i = 0; i < ARRAY_SIZE(providers); i++) {
/* Default provider state is active. */
int ret = 1;
const struct asset_provider *ops;
ops = providers[i];
if (ops->is_active != NULL)
ret = ops->is_active(asset);
if (ret == 0) {
printk(BIOS_DEBUG, "%s provider inactive.\n",
ops->name);
continue;
} else if (ret < 0) {
printk(BIOS_DEBUG, "%s provider failure.\n",
ops->name);
continue;
}
printk(BIOS_DEBUG, "%s provider active.\n", ops->name);
if (ops->locate(asset))
continue;
printk(BIOS_DEBUG, "'%s' located at offset: %zx size: %zx\n",
asset->name, region_device_offset(&asset->rdev),
region_device_sz(&asset->rdev));
return 0;
}
return -1;
}
|
