1/* $NetBSD: cpu_ucode.h,v 1.5 2022/09/15 14:34:22 msaitoh Exp $ */
2/*
3 * Copyright (c) 2012 The NetBSD Foundation, Inc.
4 * All rights reserved.
5 *
6 * This code is derived from software contributed to The NetBSD Foundation
7 * by Christoph Egger.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
20 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#ifndef _X86_CPU_UCODE_H_
32#define _X86_CPU_UCODE_H_
33
34#define CPU_UCODE_LOADER_AMD 0
35struct cpu_ucode_version_amd {
36 uint64_t version;
37};
38
39#define CPU_UCODE_LOADER_INTEL1 1
40struct cpu_ucode_version_intel1 {
41 uint32_t ucodeversion;
42 int platformid;
43};
44
45#ifdef _KERNEL
46#include <sys/cpu.h>
47#include <sys/cpuio.h>
48#include <dev/firmload.h>
49
50int cpu_ucode_amd_get_version(struct cpu_ucode_version *, void *, size_t);
51int cpu_ucode_amd_firmware_open(firmware_handle_t *, const char *);
52int cpu_ucode_amd_apply(struct cpu_ucode_softc *, int);
53
54int cpu_ucode_intel_get_version(struct cpu_ucode_version *, void *, size_t);
55int cpu_ucode_intel_firmware_open(firmware_handle_t *, const char *);
56int cpu_ucode_intel_apply(struct cpu_ucode_softc *, int);
57#endif /* _KERNEL */
58
59struct intel1_ucode_header {
60 uint32_t uh_header_ver;
61 uint32_t uh_rev;
62 uint32_t uh_date;
63 uint32_t uh_signature;
64 uint32_t uh_checksum;
65 uint32_t uh_loader_rev;
66 uint32_t uh_proc_flags;
67 uint32_t uh_data_size;
68 uint32_t uh_total_size;
69 uint32_t uh_reserved[3];
70};
71
72struct intel1_ucode_ext_table {
73 uint32_t uet_count;
74 uint32_t uet_checksum;
75 uint32_t uet_reserved[3];
76};
77
78struct intel1_ucode_proc_signature {
79 uint32_t ups_signature;
80 uint32_t ups_proc_flags;
81 uint32_t ups_checksum;
82};
83
84#endif