cpuctl.h revision 330897 
1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2006-2008 Stanislav Sedov <stas@FreeBSD.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD: stable/11/sys/sys/cpuctl.h 330897 2018-03-14 03:19:51Z eadler $
29 */
30
31#ifndef _CPUCTL_H_
32#define	_CPUCTL_H_
33
34typedef struct {
35	int		msr;	/* MSR to read */
36	uint64_t	data;
37} cpuctl_msr_args_t;
38
39typedef struct {
40	int		level;		/* CPUID level */
41	uint32_t	data[4];
42} cpuctl_cpuid_args_t;
43
44typedef struct {
45	int		level;		/* CPUID level */
46	int		level_type;	/* CPUID level type */
47	uint32_t	data[4];
48} cpuctl_cpuid_count_args_t;
49
50typedef struct {
51	void	*data;
52	size_t	size;
53} cpuctl_update_args_t;
54
55#define	CPUCTL_RDMSR	_IOWR('c', 1, cpuctl_msr_args_t)
56#define	CPUCTL_WRMSR	_IOWR('c', 2, cpuctl_msr_args_t)
57#define	CPUCTL_CPUID	_IOWR('c', 3, cpuctl_cpuid_args_t)
58#define	CPUCTL_UPDATE	_IOWR('c', 4, cpuctl_update_args_t)
59#define	CPUCTL_MSRSBIT	_IOWR('c', 5, cpuctl_msr_args_t)
60#define	CPUCTL_MSRCBIT	_IOWR('c', 6, cpuctl_msr_args_t)
61#define	CPUCTL_CPUID_COUNT _IOWR('c', 7, cpuctl_cpuid_count_args_t)
62#define	CPUCTL_EVAL_CPU_FEATURES	_IO('c', 8)
63
64#endif /* _CPUCTL_H_ */
65