20a1e83732
Move a few things into a new, common header file so that vbe-simple can share code with the upcoming abrec. Put struct simple_nvdata in it and rename it. Signed-off-by: Simon Glass <sjg@chromium.org>
52 lines
1.0 KiB
C
52 lines
1.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Verified Boot for Embedded (VBE) common functions
|
|
*
|
|
* Copyright 2024 Google LLC
|
|
* Written by Simon Glass <sjg@chromium.org>
|
|
*/
|
|
|
|
#ifndef __VBE_COMMON_H
|
|
#define __VBE_COMMON_H
|
|
|
|
#include <linux/types.h>
|
|
|
|
struct udevice;
|
|
|
|
enum {
|
|
MAX_VERSION_LEN = 256,
|
|
|
|
NVD_HDR_VER_SHIFT = 0,
|
|
NVD_HDR_VER_MASK = 0xf,
|
|
NVD_HDR_SIZE_SHIFT = 4,
|
|
NVD_HDR_SIZE_MASK = 0xf << NVD_HDR_SIZE_SHIFT,
|
|
|
|
/* Firmware key-version is in the top 16 bits of fw_ver */
|
|
FWVER_KEY_SHIFT = 16,
|
|
FWVER_FW_MASK = 0xffff,
|
|
|
|
NVD_HDR_VER_CUR = 1, /* current version */
|
|
};
|
|
|
|
/**
|
|
* struct vbe_nvdata - basic storage format for non-volatile data
|
|
*
|
|
* This is used for all VBE methods
|
|
*
|
|
* @crc8: crc8 for the entire record except @crc8 field itself
|
|
* @hdr: header size and version (NVD_HDR_...)
|
|
* @spare1: unused, must be 0
|
|
* @fw_vernum: version and key version (FWVER_...)
|
|
* @flags: Flags controlling operation (enum vbe_flags)
|
|
*/
|
|
struct vbe_nvdata {
|
|
u8 crc8;
|
|
u8 hdr;
|
|
u16 spare1;
|
|
u32 fw_vernum;
|
|
u32 flags;
|
|
u8 spare2[0x34];
|
|
};
|
|
|
|
#endif /* __VBE_ABREC_H */
|