master
1/* $NetBSD: sysarch.h,v 1.15 2020/06/19 16:20:22 maxv Exp $ */
2
3/*-
4 * Copyright (c) 2007 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Andrew Doran.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef _X86_SYSARCH_H_
33#define _X86_SYSARCH_H_
34
35#define X86_GET_LDT 0
36#define X86_SET_LDT 1
37#define X86_IOPL 2
38#define X86_GET_IOPERM 3
39#define X86_SET_IOPERM 4
40#define X86_OLD_VM86 5
41#define X86_GET_MTRR 11
42#define X86_SET_MTRR 12
43#define X86_VM86 13
44#define X86_GET_GSBASE 14
45#define X86_GET_FSBASE 15
46#define X86_SET_GSBASE 16
47#define X86_SET_FSBASE 17
48
49#ifdef _KERNEL
50#define _X86_SYSARCH_L(x) x86_##x
51#define _X86_SYSARCH_U(x) X86_##x
52#elif defined(__i386__)
53#define _X86_SYSARCH_L(x) i386_##x
54#define _X86_SYSARCH_U(x) I386_##x
55#define I386_GET_LDT X86_GET_LDT
56#define I386_SET_LDT X86_SET_LDT
57#define I386_IOPL X86_IOPL
58#define I386_GET_IOPERM X86_GET_IOPERM
59#define I386_SET_IOPERM X86_SET_IOPERM
60#define I386_OLD_VM86 X86_OLD_VM86
61#define I386_GET_MTRR X86_GET_MTRR
62#define I386_SET_MTRR X86_SET_MTRR
63#define I386_VM86 X86_VM86
64#define I386_GET_GSBASE X86_GET_GSBASE
65#define I386_GET_FSBASE X86_GET_FSBASE
66#define I386_SET_GSBASE X86_SET_GSBASE
67#define I386_SET_FSBASE X86_SET_FSBASE
68#else
69#define _X86_SYSARCH_L(x) x86_64_##x
70#define _X86_SYSARCH_U(x) X86_64_##x
71#define X86_64_GET_LDT X86_GET_LDT
72#define X86_64_SET_LDT X86_SET_LDT
73#define X86_64_IOPL X86_IOPL
74#define X86_64_GET_IOPERM X86_GET_IOPERM
75#define X86_64_SET_IOPERM X86_SET_IOPERM
76#define X86_64_OLD_VM86 X86_OLD_VM86
77#define X86_64_GET_MTRR X86_GET_MTRR
78#define X86_64_SET_MTRR X86_SET_MTRR
79#define X86_64_VM86 X86_VM86
80#define X86_64_GET_GSBASE X86_GET_GSBASE
81#define X86_64_GET_FSBASE X86_GET_FSBASE
82#define X86_64_SET_GSBASE X86_SET_GSBASE
83#define X86_64_SET_FSBASE X86_SET_FSBASE
84#endif
85
86/*
87 * Architecture specific syscalls (x86)
88 */
89
90struct _X86_SYSARCH_L(get_ldt_args) {
91 int start;
92 union descriptor *desc;
93 int num;
94};
95
96struct _X86_SYSARCH_L(set_ldt_args) {
97 int start;
98 union descriptor *desc;
99 int num;
100};
101
102struct _X86_SYSARCH_L(get_mtrr_args) {
103 struct mtrr *mtrrp;
104 int *n;
105};
106
107struct _X86_SYSARCH_L(set_mtrr_args) {
108 struct mtrr *mtrrp;
109 int *n;
110};
111
112struct _X86_SYSARCH_L(iopl_args) {
113 int iopl;
114};
115
116struct _X86_SYSARCH_L(get_ioperm_args) {
117 u_long *iomap;
118};
119
120struct _X86_SYSARCH_L(set_ioperm_args) {
121 u_long *iomap;
122};
123
124struct mtrr;
125
126#ifdef _KERNEL
127int x86_iopl(struct lwp *, void *, register_t *);
128int x86_get_ldt1(struct lwp *, struct x86_get_ldt_args *, union descriptor *);
129int x86_set_ldt1(struct lwp *, struct x86_set_ldt_args *, union descriptor *);
130int x86_set_sdbase(void *, char, lwp_t *, bool);
131int x86_get_sdbase(void *, char);
132#else
133#include <sys/cdefs.h>
134__BEGIN_DECLS
135int _X86_SYSARCH_L(get_ldt)(int, union descriptor *, int);
136int _X86_SYSARCH_L(set_ldt)(int, union descriptor *, int);
137int _X86_SYSARCH_L(iopl)(int);
138int _X86_SYSARCH_L(set_mtrr)(struct mtrr *, int *);
139int _X86_SYSARCH_L(get_mtrr)(struct mtrr *, int *);
140int sysarch(int, void *);
141__END_DECLS
142#endif
143
144#endif /* !_X86_SYSARCH_H_ */