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 (C) 2011 The ChromiumOS Authors. All rights reserved.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc.
*/
#include <types.h>
#include <string.h>
#include <stdlib.h>
#include <cbfs.h>
#include <cbmem.h>
#include <console/console.h>
#include <elog.h>
#include "chromeos.h"
#include "gnvs.h"
#if CONFIG_VBOOT_VERIFY_FIRMWARE
#include "vboot_handoff.h"
#include <vboot_struct.h>
#endif
chromeos_acpi_t *vboot_data = NULL;
static u32 me_hash_saved[8];
void chromeos_init_vboot(chromeos_acpi_t *chromeos)
{
vboot_data = chromeos;
/* Copy saved ME hash into NVS */
memcpy(vboot_data->mehh, me_hash_saved, sizeof(vboot_data->mehh));
#if CONFIG_VBOOT_VERIFY_FIRMWARE
/* Save the vdat from the vboot handoff structure. Downstream software
* consumes the data located in the ACPI table. Ensure it reflects
* the shared data from VbInit() and VbSelectFirmware(). */
struct vboot_handoff *vboot_handoff;
vboot_handoff = cbmem_find(CBMEM_ID_VBOOT_HANDOFF);
if (vboot_handoff != NULL)
memcpy(&chromeos->vdat[0], &vboot_handoff->shared_data[0],
ARRAY_SIZE(chromeos->vdat));
#endif
#if CONFIG_ELOG
if (developer_mode_enabled() ||
(vboot_wants_oprom() && !recovery_mode_enabled()))
elog_add_event(ELOG_TYPE_CROS_DEVELOPER_MODE);
if (recovery_mode_enabled()) {
int reason = get_recovery_mode_from_vbnv();
#if CONFIG_VBOOT_VERIFY_FIRMWARE
if (vboot_handoff && !reason) {
VbSharedDataHeader *sd = (VbSharedDataHeader *)
vboot_handoff->shared_data;
reason = sd->recovery_reason;
}
#endif
elog_add_event_byte(ELOG_TYPE_CROS_RECOVERY_MODE,
reason ? reason : ELOG_CROS_RECOVERY_MODE_BUTTON);
}
#endif
chromeos_ram_oops_init(chromeos);
}
void chromeos_set_me_hash(u32 *hash, int len)
{
if ((len*sizeof(u32)) > sizeof(vboot_data->mehh))
return;
/* Copy to NVS or save until it is ready */
if (vboot_data)
/* This does never happen! */
memcpy(vboot_data->mehh, hash, len*sizeof(u32));
else
memcpy(me_hash_saved, hash, len*sizeof(u32));
}
void acpi_get_vdat_info(uint64_t *vdat_addr, uint32_t *vdat_size)
{
*vdat_addr = (intptr_t)vboot_data;
*vdat_size = sizeof(*vboot_data);
}
|
