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#define AMD64_GET_TLSBASE 135
65#define AMD64_SET_TLSBASE 136
66#define AMD64_DISABLE_TLSBASE 137
67
68/* Flags for AMD64_SET_PKRU */
69#define AMD64_PKRU_EXCL 0x0001
70#define AMD64_PKRU_PERSIST 0x0002
71
72struct i386_ioperm_args {
73 unsigned int start;
74 unsigned int length;
75 int enable;
76};
77
78#ifdef __i386__
79struct i386_ldt_args {
80 unsigned int start;
81 union descriptor *descs;
82 unsigned int num;
83};
84
85struct i386_vm86_args {
86 int sub_op; /* sub-operation to perform */
87 char *sub_args; /* args */
88};
89
90struct i386_get_xfpustate {
91 void *addr;
92 int len;
93};
94#else
95struct i386_ldt_args {
96 unsigned int start;
97 struct user_segment_descriptor *descs __packed;
98 unsigned int num;
99};
100
101struct i386_get_xfpustate {
102 unsigned int addr;
103 int len;
104};
105
106struct i386_set_pkru {
107 unsigned int addr;
108 unsigned int len;
109 unsigned int keyidx;
110 int flags;
111};
112
113struct amd64_get_xfpustate {
114 void *addr;
115 int len;
116};
117#endif
118
119struct amd64_set_pkru {
120 void *addr;
121 unsigned long len;
122 unsigned int keyidx;
123 int flags;
124};
125
126#ifndef _KERNEL
127union descriptor;
128struct dbreg;
129
130__BEGIN_DECLS
131int i386_get_ldt(int, union descriptor *, int);
132int i386_set_ldt(int, union descriptor *, int);
133int i386_get_ioperm(unsigned int, unsigned int *, int *);
134int i386_set_ioperm(unsigned int, unsigned int, int);
135int i386_vm86(int, void *);
136int i386_get_fsbase(void **);
137int i386_get_gsbase(void **);
138int i386_set_fsbase(void *);
139int i386_set_gsbase(void *);
140int i386_set_watch(int, unsigned int, int, int, struct dbreg *);
141int i386_clr_watch(int, struct dbreg *);
142int amd64_get_fsbase(void **);
143int amd64_get_gsbase(void **);
144int amd64_set_fsbase(void *);
145int amd64_set_gsbase(void *);
146int amd64_set_tlsbase(void *);
147int x86_pkru_get_perm(unsigned int keyidx, int *access, int *modify);
148int x86_pkru_set_perm(unsigned int keyidx, int access, int modify);
149int x86_pkru_protect_range(void *addr, unsigned long len, unsigned int keyidx,
150 int flag);
151int x86_pkru_unprotect_range(void *addr, unsigned long len);
152int sysarch(int, void *);
153__END_DECLS
154#else
155struct thread;
156union descriptor;
157
158int i386_get_ldt(struct thread *, struct i386_ldt_args *);
159int i386_set_ldt(struct thread *, struct i386_ldt_args *, union descriptor *);
160int i386_get_ioperm(struct thread *, struct i386_ioperm_args *);
161int i386_set_ioperm(struct thread *, struct i386_ioperm_args *);
162int amd64_get_ldt(struct thread *, struct i386_ldt_args *);
163int amd64_set_ldt(struct thread *, struct i386_ldt_args *,
164 struct user_segment_descriptor *);
165int amd64_get_ioperm(struct thread *, struct i386_ioperm_args *);
166int amd64_set_ioperm(struct thread *, struct i386_ioperm_args *);
167#endif
168
169#endif /* !_MACHINE_SYSARCH_H_ */