1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1993 The Regents of the University of California.
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 * 3. Neither the name of the University nor the names of its contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * $FreeBSD$
32 */
33
34/*
35 * Architecture specific syscalls (X86)
36 */
37#ifndef _MACHINE_SYSARCH_H_
38#define _MACHINE_SYSARCH_H_
39
40#include <sys/cdefs.h>
41
42#define I386_GET_LDT	0
43#define I386_SET_LDT	1
44#define	LDT_AUTO_ALLOC	0xffffffff
45				/* I386_IOPL */
46#define I386_GET_IOPERM	3
47#define I386_SET_IOPERM	4
48				/* xxxxx */
49#define	I386_VM86		6	/* XXX Not implementable on amd64 */
50#define	I386_GET_FSBASE		7
51#define	I386_SET_FSBASE		8
52#define	I386_GET_GSBASE		9
53#define	I386_SET_GSBASE		10
54#define	I386_GET_XFPUSTATE	11
55#define	I386_SET_PKRU		12
56#define	I386_CLEAR_PKRU		13
57
58/* Leave space for 0-127 for to avoid translating syscalls */
59#define	AMD64_GET_FSBASE	128
60#define	AMD64_SET_FSBASE	129
61#define	AMD64_GET_GSBASE	130
62#define	AMD64_SET_GSBASE	131
63#define	AMD64_GET_XFPUSTATE	132
64#define	AMD64_SET_PKRU		133
65#define	AMD64_CLEAR_PKRU	134
66
67/* Flags for AMD64_SET_PKRU */
68#define	AMD64_PKRU_EXCL		0x0001
69#define	AMD64_PKRU_PERSIST	0x0002
70
71struct i386_ioperm_args {
72	unsigned int start;
73	unsigned int length;
74	int	enable;
75};
76
77#ifdef __i386__
78struct i386_ldt_args {
79	unsigned int start;
80	union descriptor *descs;
81	unsigned int num;
82};
83
84struct i386_vm86_args {
85	int	sub_op;			/* sub-operation to perform */
86	char	*sub_args;		/* args */
87};
88
89struct i386_get_xfpustate {
90	void *addr;
91	int len;
92};
93#else
94struct i386_ldt_args {
95	unsigned int start;
96	struct user_segment_descriptor *descs __packed;
97	unsigned int num;
98};
99
100struct i386_get_xfpustate {
101	unsigned int addr;
102	int len;
103};
104
105struct i386_set_pkru {
106	unsigned int addr;
107	unsigned int len;
108	unsigned int keyidx;
109	int flags;
110};
111
112struct amd64_get_xfpustate {
113	void *addr;
114	int len;
115};
116#endif
117
118struct amd64_set_pkru {
119	void *addr;
120	unsigned long len;
121	unsigned int keyidx;
122	int flags;
123};
124
125#ifndef _KERNEL
126union descriptor;
127struct dbreg;
128
129__BEGIN_DECLS
130int i386_get_ldt(int, union descriptor *, int);
131int i386_set_ldt(int, union descriptor *, int);
132int i386_get_ioperm(unsigned int, unsigned int *, int *);
133int i386_set_ioperm(unsigned int, unsigned int, int);
134int i386_vm86(int, void *);
135int i386_get_fsbase(void **);
136int i386_get_gsbase(void **);
137int i386_set_fsbase(void *);
138int i386_set_gsbase(void *);
139int i386_set_watch(int, unsigned int, int, int, struct dbreg *);
140int i386_clr_watch(int, struct dbreg *);
141int amd64_get_fsbase(void **);
142int amd64_get_gsbase(void **);
143int amd64_set_fsbase(void *);
144int amd64_set_gsbase(void *);
145int x86_pkru_get_perm(unsigned int keyidx, int *access, int *modify);
146int x86_pkru_set_perm(unsigned int keyidx, int access, int modify);
147int x86_pkru_protect_range(void *addr, unsigned long len, unsigned int keyidx,
148    int flag);
149int x86_pkru_unprotect_range(void *addr, unsigned long len);
150int sysarch(int, void *);
151__END_DECLS
152#else
153struct thread;
154union descriptor;
155
156int i386_get_ldt(struct thread *, struct i386_ldt_args *);
157int i386_set_ldt(struct thread *, struct i386_ldt_args *, union descriptor *);
158int i386_get_ioperm(struct thread *, struct i386_ioperm_args *);
159int i386_set_ioperm(struct thread *, struct i386_ioperm_args *);
160int amd64_get_ldt(struct thread *, struct i386_ldt_args *);
161int amd64_set_ldt(struct thread *, struct i386_ldt_args *,
162    struct user_segment_descriptor *);
163int amd64_get_ioperm(struct thread *, struct i386_ioperm_args *);
164int amd64_set_ioperm(struct thread *, struct i386_ioperm_args *);
165#endif
166
167#endif /* !_MACHINE_SYSARCH_H_ */
168