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9754cae1c1
Add a new flag, 0x100, to indicate FAFT key stroke overrides. BUG=chrome-os-partner:14056 TEST=none BRANCH=stout Change-Id: I76b7f3f4c51abec5528047f690f20a09b257abc2 Signed-off-by: Marc Jones <marc.jones@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/37074 Reviewed-by: Ronald G. Minnich <rminnich@chromium.org> Reviewed-by: Gediminas Ramanauskas <gedis@chromium.org> Tested-by: Gediminas Ramanauskas <gedis@chromium.org> Commit-Ready: Marc Jones <marc.jones@se-eng.com>
88 lines
3.6 KiB
C
88 lines
3.6 KiB
C
/* Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*
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* Data structure of Google Binary Block (GBB)
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*/
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#ifndef VBOOT_REFERENCE_GBB_HEADER_H_
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#define VBOOT_REFERENCE_GBB_HEADER_H_
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#include "sysincludes.h"
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#define GBB_HEADER_SIZE 128
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#define GBB_SIGNATURE "$GBB"
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#define GBB_SIGNATURE_SIZE 4
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/* GBB version constants.
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*
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* If the major version is different than the reader can handle, it
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* shouldn't attempt to parse the GBB.
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*
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* If the minor version is different, the reader can still parse it.
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* If the minor version is greater than expected, new fields were
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* added in a way which does not interfere with the old fields. If
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* it's less than expected, some of the fields expected by the reader
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* aren't initialized, and the reader should return default values for
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* those fields. */
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#define GBB_MAJOR_VER 1
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#define GBB_MINOR_VER 1
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/* Maximum length of a HWID in bytes, counting terminating null. */
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#define GBB_HWID_MAX_SIZE 256
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/* Flags for .flags field */
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/* Reduce the dev screen delay to 2 sec from 30 sec to speedup factory. */
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#define GBB_FLAG_DEV_SCREEN_SHORT_DELAY 0x00000001
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/* BIOS should load option ROMs from arbitrary PCI devices. We'll never enable
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* this ourselves because it executes non-verified code, but if a customer wants
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* to void their warranty and set this flag in the read-only flash, they should
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* be able to do so. */
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#define GBB_FLAG_LOAD_OPTION_ROMS 0x00000002
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/* The factory flow may need the BIOS to boot a non-ChromeOS kernel if the
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* dev-switch is on. This flag allows that. */
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#define GBB_FLAG_ENABLE_ALTERNATE_OS 0x00000004
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/* Force dev switch on, regardless of physical/keyboard dev switch position. */
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#define GBB_FLAG_FORCE_DEV_SWITCH_ON 0x00000008
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/* Allow booting from USB in dev mode even if dev_boot_usb=0. */
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#define GBB_FLAG_FORCE_DEV_BOOT_USB 0x00000010
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/* Disable firmware rollback protection. */
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#define GBB_FLAG_DISABLE_FW_ROLLBACK_CHECK 0x00000020
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/* Allow Enter key to trigger dev->tonorm screen transition */
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#define GBB_FLAG_ENTER_TRIGGERS_TONORM 0x00000040
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/* Allow booting Legacy OSes in dev mode even if dev_boot_legacy=0. */
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#define GBB_FLAG_FORCE_DEV_BOOT_LEGACY 0x00000080
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/* Allow booting using alternate keys for FAFT servo testing */
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#define GBB_FLAG_FAFT_KEY_OVERIDE 0x00000100
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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typedef struct GoogleBinaryBlockHeader {
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/* Fields present in version 1.0 */
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uint8_t signature[GBB_SIGNATURE_SIZE]; /* GBB_SIGNATURE "$GBB" */
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uint16_t major_version; /* See GBB_MAJOR_VER */
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uint16_t minor_version; /* See GBB_MINOR_VER */
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uint32_t header_size; /* size of GBB header in bytes */
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uint32_t flags; /* Flags (see GBB_FLAG_*), should be 0 for 1.0. */
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uint32_t hwid_offset; /* HWID offset from start of header */
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uint32_t hwid_size; /* HWID size in bytes */
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uint32_t rootkey_offset; /* Root Key offset from start of header */
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uint32_t rootkey_size; /* Root Key size in bytes */
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uint32_t bmpfv_offset; /* BMP FV offset from start of header */
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uint32_t bmpfv_size; /* BMP FV size in bytes */
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uint32_t recovery_key_offset; /* Recovery Key offset from start of header */
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uint32_t recovery_key_size; /* Recovery Key size in bytes */
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uint8_t pad[80]; /* To match GBB_HEADER_SIZE. Initialize to 0. */
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} __attribute__((packed)) GoogleBinaryBlockHeader;
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* VBOOT_REFERENCE_GBB_HEADER_H_ */
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