1 /* Copyright (c) 2014 The Chromium OS Authors. All rights reserved. 2 * Use of this source code is governed by a BSD-style license that can be 3 * found in the LICENSE file. 4 * 5 * Firmware hash tags for verified boot 6 */ 7 8 #ifndef VBOOT_REFERENCE_VBOOT_2FW_HASH_TAGS_H_ 9 #define VBOOT_REFERENCE_VBOOT_2FW_HASH_TAGS_H_ 10 #include <stdint.h> 11 12 /* 13 * Tags for types of hashable data. 14 * 15 * Note that not every firmware image will contain every tag. 16 * 17 * TODO: These are the ones that vboot specifically knows about given the 18 * current data structures. In the future, I'd really like the vboot preamble 19 * to contain an arbitrary list of tags and their hashes, so that we can hash 20 * ram init, main RW body, EC-RW for software sync, etc. all separately. 21 */ 22 enum vb2_hash_tag { 23 /* Invalid hash tag; never present in table */ 24 VB2_HASH_TAG_INVALID = 0, 25 26 /* Firmware body */ 27 VB2_HASH_TAG_FW_BODY = 1, 28 29 /* Kernel data key */ 30 VB2_HASH_TAG_KERNEL_DATA_KEY = 2, 31 32 /* 33 * Tags over 0x40000000 are reserved for use by the calling firmware, 34 * which may associate them with arbitrary types of RW firmware data 35 * that it wants to track. 36 */ 37 VB2_HASH_TAG_CALLER_BASE = 0x40000000 38 }; 39 40 #endif /* VBOOT_REFERENCE_VBOOT_2FW_HASH_TAGS_H_ */ 41
