xref: /freebsd/sys/x86/include/sysarch.h (revision fcb560670601b2a4d87bb31d7531c8dcc37ee71b)
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 (X86)
34  */
35 #ifndef _MACHINE_SYSARCH_H_
36 #define _MACHINE_SYSARCH_H_
37 
38 #include <sys/cdefs.h>
39 
40 #define I386_GET_LDT	0
41 #define I386_SET_LDT	1
42 #define	LDT_AUTO_ALLOC	0xffffffff
43 				/* I386_IOPL */
44 #define I386_GET_IOPERM	3
45 #define I386_SET_IOPERM	4
46 				/* xxxxx */
47 #define	I386_VM86		6	/* XXX Not implementable on amd64 */
48 #define	I386_GET_FSBASE		7
49 #define	I386_SET_FSBASE		8
50 #define	I386_GET_GSBASE		9
51 #define	I386_SET_GSBASE		10
52 #define	I386_GET_XFPUSTATE	11
53 
54 /* Leave space for 0-127 for to avoid translating syscalls */
55 #define	AMD64_GET_FSBASE	128
56 #define	AMD64_SET_FSBASE	129
57 #define	AMD64_GET_GSBASE	130
58 #define	AMD64_SET_GSBASE	131
59 #define	AMD64_GET_XFPUSTATE	132
60 
61 struct i386_ioperm_args {
62 	unsigned int start;
63 	unsigned int length;
64 	int	enable;
65 };
66 
67 #ifdef __i386__
68 struct i386_ldt_args {
69 	unsigned int start;
70 	union descriptor *descs;
71 	unsigned int num;
72 };
73 
74 struct i386_vm86_args {
75 	int	sub_op;			/* sub-operation to perform */
76 	char	*sub_args;		/* args */
77 };
78 
79 struct i386_get_xfpustate {
80 	void *addr;
81 	int len;
82 };
83 #else
84 struct i386_ldt_args {
85 	unsigned int start;
86 	struct user_segment_descriptor *descs __packed;
87 	unsigned int num;
88 };
89 
90 struct i386_get_xfpustate {
91 	unsigned int addr;
92 	int len;
93 };
94 
95 struct amd64_get_xfpustate {
96 	void *addr;
97 	int len;
98 };
99 #endif
100 
101 #ifndef _KERNEL
102 union descriptor;
103 struct dbreg;
104 
105 __BEGIN_DECLS
106 int i386_get_ldt(int, union descriptor *, int);
107 int i386_set_ldt(int, union descriptor *, int);
108 int i386_get_ioperm(unsigned int, unsigned int *, int *);
109 int i386_set_ioperm(unsigned int, unsigned int, int);
110 int i386_vm86(int, void *);
111 int i386_get_fsbase(void **);
112 int i386_get_gsbase(void **);
113 int i386_set_fsbase(void *);
114 int i386_set_gsbase(void *);
115 int i386_set_watch(int, unsigned int, int, int, struct dbreg *);
116 int i386_clr_watch(int, struct dbreg *);
117 int amd64_get_fsbase(void **);
118 int amd64_get_gsbase(void **);
119 int amd64_set_fsbase(void *);
120 int amd64_set_gsbase(void *);
121 int sysarch(int, void *);
122 __END_DECLS
123 #else
124 struct thread;
125 union descriptor;
126 
127 int i386_get_ldt(struct thread *, struct i386_ldt_args *);
128 int i386_set_ldt(struct thread *, struct i386_ldt_args *, union descriptor *);
129 int i386_get_ioperm(struct thread *, struct i386_ioperm_args *);
130 int i386_set_ioperm(struct thread *, struct i386_ioperm_args *);
131 int amd64_get_ldt(struct thread *, struct i386_ldt_args *);
132 int amd64_set_ldt(struct thread *, struct i386_ldt_args *,
133     struct user_segment_descriptor *);
134 int amd64_get_ioperm(struct thread *, struct i386_ioperm_args *);
135 int amd64_set_ioperm(struct thread *, struct i386_ioperm_args *);
136 #endif
137 
138 #endif /* !_MACHINE_SYSARCH_H_ */
139