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