master
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
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#define I386_SET_PKRU 12
54#define I386_CLEAR_PKRU 13
55
56/* Leave space for 0-127 for to avoid translating syscalls */
57#define AMD64_GET_FSBASE 128
58#define AMD64_SET_FSBASE 129
59#define AMD64_GET_GSBASE 130
60#define AMD64_SET_GSBASE 131
61#define AMD64_GET_XFPUSTATE 132
62#define AMD64_SET_PKRU 133
63#define AMD64_CLEAR_PKRU 134
64
65/* Flags for AMD64_SET_PKRU */
66#define AMD64_PKRU_EXCL 0x0001
67#define AMD64_PKRU_PERSIST 0x0002
68
69struct i386_ioperm_args {
70 unsigned int start;
71 unsigned int length;
72 int enable;
73};
74
75#ifdef __i386__
76struct i386_ldt_args {
77 unsigned int start;
78 union descriptor *descs;
79 unsigned int num;
80};
81
82struct i386_vm86_args {
83 int sub_op; /* sub-operation to perform */
84 char *sub_args; /* args */
85};
86
87struct i386_get_xfpustate {
88 void *addr;
89 int len;
90};
91#else
92struct i386_ldt_args {
93 unsigned int start;
94 struct user_segment_descriptor *descs __packed;
95 unsigned int num;
96};
97
98struct i386_get_xfpustate {
99 unsigned int addr;
100 int len;
101};
102
103struct i386_set_pkru {
104 unsigned int addr;
105 unsigned int len;
106 unsigned int keyidx;
107 int flags;
108};
109
110struct amd64_get_xfpustate {
111 void *addr;
112 int len;
113};
114#endif
115
116struct amd64_set_pkru {
117 void *addr;
118 unsigned long len;
119 unsigned int keyidx;
120 int flags;
121};
122
123#ifndef _KERNEL
124union descriptor;
125struct dbreg;
126
127__BEGIN_DECLS
128int i386_get_ldt(int, union descriptor *, int);
129int i386_set_ldt(int, union descriptor *, int);
130int i386_get_ioperm(unsigned int, unsigned int *, int *);
131int i386_set_ioperm(unsigned int, unsigned int, int);
132int i386_vm86(int, void *);
133int i386_get_fsbase(void **);
134int i386_get_gsbase(void **);
135int i386_set_fsbase(void *);
136int i386_set_gsbase(void *);
137int i386_set_watch(int, unsigned int, int, int, struct dbreg *);
138int i386_clr_watch(int, struct dbreg *);
139int amd64_get_fsbase(void **);
140int amd64_get_gsbase(void **);
141int amd64_set_fsbase(void *);
142int amd64_set_gsbase(void *);
143int x86_pkru_get_perm(unsigned int keyidx, int *access, int *modify);
144int x86_pkru_set_perm(unsigned int keyidx, int access, int modify);
145int x86_pkru_protect_range(void *addr, unsigned long len, unsigned int keyidx,
146 int flag);
147int x86_pkru_unprotect_range(void *addr, unsigned long len);
148int sysarch(int, void *);
149__END_DECLS
150#else
151struct thread;
152union descriptor;
153
154int i386_get_ldt(struct thread *, struct i386_ldt_args *);
155int i386_set_ldt(struct thread *, struct i386_ldt_args *, union descriptor *);
156int i386_get_ioperm(struct thread *, struct i386_ioperm_args *);
157int i386_set_ioperm(struct thread *, struct i386_ioperm_args *);
158int amd64_get_ldt(struct thread *, struct i386_ldt_args *);
159int amd64_set_ldt(struct thread *, struct i386_ldt_args *,
160 struct user_segment_descriptor *);
161int amd64_get_ioperm(struct thread *, struct i386_ioperm_args *);
162int amd64_set_ioperm(struct thread *, struct i386_ioperm_args *);
163#endif
164
165#endif /* !_MACHINE_SYSARCH_H_ */