62 lines
1.8 KiB
C
62 lines
1.8 KiB
C
/* Firmware Interface Table support */
|
|
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
|
|
#ifndef __CBFSTOOL_FIT_H
|
|
#define __CBFSTOOL_FIT_H
|
|
|
|
#include "cbfs_image.h"
|
|
#include "common.h"
|
|
|
|
/**
|
|
* Based on "Intel Trusted Execution Technology (Intel TXT) LAB Handout" and
|
|
* https://github.com/slimbootloader/slimbootloader/
|
|
*/
|
|
enum fit_type {
|
|
FIT_TYPE_HEADER = 0,
|
|
FIT_TYPE_MICROCODE = 1,
|
|
FIT_TYPE_BIOS_ACM = 2,
|
|
FIT_TYPE_BIOS_STARTUP = 7,
|
|
FIT_TYPE_TPM_POLICY = 8,
|
|
FIT_TYPE_BIOS_POLICY = 9,
|
|
FIT_TYPE_TXT_POLICY = 0xa,
|
|
FIT_TYPE_KEY_MANIFEST = 0xb,
|
|
FIT_TYPE_BOOT_POLICY = 0xc,
|
|
FIT_TYPE_CSE_SECURE_BOOT = 0x10,
|
|
FIT_TYPE_TXTSX_POLICY = 0x2d,
|
|
FIT_TYPE_JMP_DEBUG_POLICY = 0x2f,
|
|
FIT_TYPE_UNUSED = 127,
|
|
};
|
|
|
|
/*
|
|
* Converts between offsets from the start of the specified image region and
|
|
* "top-aligned" offsets from the top of the entire flash image. Should work in
|
|
* both directions: accepts either type of offset and produces the other type.
|
|
* The implementation must have some notion of the flash image's total size.
|
|
*/
|
|
typedef unsigned (*fit_offset_converter_t)(const struct buffer *region,
|
|
unsigned offset);
|
|
|
|
struct fit_table;
|
|
|
|
struct fit_table *fit_get_table(struct buffer *bootblock,
|
|
fit_offset_converter_t offset_fn,
|
|
uint32_t topswap_size);
|
|
int fit_dump(struct fit_table *fit);
|
|
int fit_clear_table(struct fit_table *fit);
|
|
int fit_is_supported_type(const enum fit_type type);
|
|
int fit_add_entry(struct fit_table *fit,
|
|
const uint32_t offset,
|
|
const uint32_t len,
|
|
const enum fit_type type,
|
|
const size_t max_fit_entries);
|
|
int fit_delete_entry(struct fit_table *fit,
|
|
const size_t idx);
|
|
|
|
int fit_add_microcode_file(struct fit_table *fit,
|
|
struct cbfs_image *image,
|
|
const char *blob_name,
|
|
fit_offset_converter_t offset_helper,
|
|
const size_t max_fit_entries);
|
|
|
|
#endif
|