xref: /freebsd/sys/amd64/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 (AMD64)
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 
47 /* XXX Not implementable #define I386_VM86	6 */
48 
49 #define	I386_GET_FSBASE		7
50 #define	I386_SET_FSBASE		8
51 #define	I386_GET_GSBASE		9
52 #define	I386_SET_GSBASE		10
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 
60 struct i386_ldt_args {
61 	unsigned int start;
62 	struct user_segment_descriptor *descs __packed;
63 	unsigned int num;
64 };
65 
66 struct i386_ioperm_args {
67 	unsigned int start;
68 	unsigned int length;
69 	int	enable;
70 };
71 
72 #ifndef _KERNEL
73 __BEGIN_DECLS
74 int amd64_get_fsbase(void **);
75 int amd64_get_gsbase(void **);
76 int amd64_set_fsbase(void *);
77 int amd64_set_gsbase(void *);
78 int sysarch(int, void *);
79 __END_DECLS
80 #else
81 struct thread;
82 union descriptor;
83 
84 int amd64_get_ldt(struct thread *, struct i386_ldt_args *);
85 int amd64_set_ldt(struct thread *, struct i386_ldt_args *,
86     struct user_segment_descriptor *);
87 int amd64_get_ioperm(struct thread *, struct i386_ioperm_args *);
88 int amd64_set_ioperm(struct thread *, struct i386_ioperm_args *);
89 #endif
90 
91 #endif /* !_MACHINE_SYSARCH_H_ */
92