coreboot
coreboot is an Open Source project aimed at replacing the proprietary BIOS found in most computers.
vbnv_layout.h
Go to the documentation of this file.
1
/* SPDX-License-Identifier: GPL-2.0-only */
2
3
#ifndef __VBOOT_VBNV_LAYOUT_H__
4
#define __VBOOT_VBNV_LAYOUT_H__
5
6
#define VBOOT_VBNV_BLOCK_SIZE 16
/* Size of NV storage block in bytes */
7
8
/* Constants for NV storage. We use this rather than structs and
9
* bitfields so the data format is consistent across platforms and
10
* compilers.
11
*/
12
#define HEADER_OFFSET 0
13
#define HEADER_MASK 0xC0
14
#define HEADER_SIGNATURE 0x40
15
#define HEADER_FIRMWARE_SETTINGS_RESET 0x20
16
#define HEADER_KERNEL_SETTINGS_RESET 0x10
17
18
#define BOOT_OFFSET 1
19
#define BOOT_DEBUG_RESET_MODE 0x80
20
#define BOOT_DISABLE_DEV_REQUEST 0x40
21
#define BOOT_DISPLAY_REQUEST 0x20
22
#define BOOT_TRY_B_COUNT_MASK 0x0F
23
24
#define RECOVERY_OFFSET 2
25
#define LOCALIZATION_OFFSET 3
26
27
#define DEV_FLAGS_OFFSET 4
28
#define DEV_BOOT_USB_MASK 0x01
29
#define DEV_BOOT_SIGNED_ONLY_MASK 0x02
30
#define DEV_ENABLE_UDC 0x40
31
32
#define MISC_FLAGS_OFFSET 8
33
#define MISC_FLAGS_BATTERY_CUTOFF_MASK 0x08
34
35
#define KERNEL_FIELD_OFFSET 11
36
#define CRC_OFFSET 15
37
38
#endif
/* __VBOOT_VBNV_LAYOUT_H__ */
src
security
vboot
vbnv_layout.h
Generated by
1.9.1