1/*
2 * Copyright (c) 2017 Apple Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28/*
29 * ucode.h
30 *
31 * Interface definitions for the microcode updater interface sysctl
32 */
33
34/* Intel defined microcode format */
35struct intel_ucupdate {
36 /* Header information */
37 uint32_t header_version;
38 uint32_t update_revision;
39 uint32_t date;
40 uint32_t processor_signature;
41 uint32_t checksum;
42 uint32_t loader_revision;
43 uint32_t processor_flags;
44 uint32_t data_size;
45 uint32_t total_size;
46
47 /* Reserved for future expansion */
48 uint32_t reserved0;
49 uint32_t reserved1;
50 uint32_t reserved2;
51
52 /* First word of the update data */
53 uint32_t data;
54};
55
56extern int ucode_interface(uint64_t addr);
57extern void ucode_update_wake(void);
58