coreboot/util/cbfstool/fit.h
Gang Chen 1c088e6d62 util/cbfstool: Add Intel platform boot policy support
Intel platform boot policy setting blob is linked into FIT table
as an FIT4 entry. It is required for server executing CBnT and/or
PFR without a PCH.

Please refer to chapter 4.6 of the document in below link:
https://www.intel.com/content/dam/www/public/us/en/documents/
guides/fit-bios-specification.pdf

Tool usage:
./util/cbfstool/ifittool -f <binary> -a -n <cbfs name> -t 4 \
-r COREBOOT -s <max table size>

Change-Id: I0f9fc61341430b1a35a44d50b108dcfaf31cd11c
Signed-off-by: Gang Chen <gang.c.chen@intel.com>
Signed-off-by: Li, Jincheng <jincheng.li@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84305
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2024-10-23 10:29:59 +00:00

63 lines
1.9 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_PLATFORM_BOOT_POLICY = 4,
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);
int set_fit_pointer(struct buffer *bootblock, const uint32_t offset,
fit_offset_converter_t offset_fn, uint32_t topswap_size);
#endif