xref: /freebsd/sys/i386/include/sysarch.h (revision aa0a1e58)
1 /*-
2  * Copyright (c) 1993 The Regents of the University of California.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 4. Neither the name of the University nor the names of its contributors
14  *    may be used to endorse or promote products derived from this software
15  *    without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * $FreeBSD$
30  */
31 
32 /*
33  * Architecture specific syscalls (i386)
34  */
35 #ifndef _MACHINE_SYSARCH_H_
36 #define _MACHINE_SYSARCH_H_
37 
38 #define I386_GET_LDT	0
39 #define I386_SET_LDT	1
40 #define	LDT_AUTO_ALLOC	0xffffffff
41 				/* I386_IOPL */
42 #define I386_GET_IOPERM	3
43 #define I386_SET_IOPERM	4
44 				/* xxxxx */
45 #define I386_VM86	6
46 #define I386_GET_FSBASE	7
47 #define I386_SET_FSBASE	8
48 #define I386_GET_GSBASE	9
49 #define I386_SET_GSBASE	10
50 
51 /* These four only exist when running an i386 binary on amd64 */
52 #define	_AMD64_GET_FSBASE	128
53 #define	_AMD64_SET_FSBASE	129
54 #define	_AMD64_GET_GSBASE	130
55 #define	_AMD64_SET_GSBASE	131
56 
57 struct i386_ldt_args {
58 	unsigned int start;
59 	union	descriptor *descs;
60 	unsigned int num;
61 };
62 
63 struct i386_ioperm_args {
64 	unsigned int start;
65 	unsigned int length;
66 	int	enable;
67 };
68 
69 struct i386_vm86_args {
70 	int	sub_op;			/* sub-operation to perform */
71 	char	*sub_args;		/* args */
72 };
73 
74 #ifndef _KERNEL
75 #include <sys/cdefs.h>
76 
77 union descriptor;
78 struct dbreg;
79 
80 __BEGIN_DECLS
81 /* These four only exist when running an i386 binary on amd64 */
82 int _amd64_get_fsbase(void **);
83 int _amd64_get_gsbase(void **);
84 int _amd64_set_fsbase(void *);
85 int _amd64_set_gsbase(void *);
86 int i386_get_ldt(int, union descriptor *, int);
87 int i386_set_ldt(int, union descriptor *, int);
88 int i386_get_ioperm(unsigned int, unsigned int *, int *);
89 int i386_set_ioperm(unsigned int, unsigned int, int);
90 int i386_vm86(int, void *);
91 int i386_get_fsbase(void **);
92 int i386_get_gsbase(void **);
93 int i386_set_fsbase(void *);
94 int i386_set_gsbase(void *);
95 int i386_set_watch(int, unsigned int, int, int, struct dbreg *);
96 int i386_clr_watch(int, struct dbreg *);
97 int sysarch(int, void *);
98 __END_DECLS
99 #else
100 struct thread;
101 union descriptor;
102 
103 int i386_get_ldt(struct thread *, struct i386_ldt_args *);
104 int i386_set_ldt(struct thread *, struct i386_ldt_args *, union descriptor *);
105 int i386_get_ioperm(struct thread *, struct i386_ioperm_args *);
106 int i386_set_ioperm(struct thread *, struct i386_ioperm_args *);
107 #endif
108 
109 #endif /* !_MACHINE_SYSARCH_H_ */
110