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 72 struct i386_ioperm_args { 73 unsigned int start; 74 unsigned int length; 75 int enable; 76 }; 77 78 #ifdef __i386__ 79 struct i386_ldt_args { 80 unsigned int start; 81 union descriptor *descs; 82 unsigned int num; 83 }; 84 85 struct i386_vm86_args { 86 int sub_op; /* sub-operation to perform */ 87 char *sub_args; /* args */ 88 }; 89 90 struct i386_get_xfpustate { 91 void *addr; 92 int len; 93 }; 94 #else 95 struct i386_ldt_args { 96 unsigned int start; 97 struct user_segment_descriptor *descs __packed; 98 unsigned int num; 99 }; 100 101 struct i386_get_xfpustate { 102 unsigned int addr; 103 int len; 104 }; 105 106 struct i386_set_pkru { 107 unsigned int addr; 108 unsigned int len; 109 unsigned int keyidx; 110 int flags; 111 }; 112 113 struct amd64_get_xfpustate { 114 void *addr; 115 int len; 116 }; 117 #endif 118 119 struct amd64_set_pkru { 120 void *addr; 121 unsigned long len; 122 unsigned int keyidx; 123 int flags; 124 }; 125 126 #ifndef _KERNEL 127 union descriptor; 128 struct dbreg; 129 130 __BEGIN_DECLS 131 int i386_get_ldt(int, union descriptor *, int); 132 int i386_set_ldt(int, union descriptor *, int); 133 int i386_get_ioperm(unsigned int, unsigned int *, int *); 134 int i386_set_ioperm(unsigned int, unsigned int, int); 135 int i386_vm86(int, void *); 136 int i386_get_fsbase(void **); 137 int i386_get_gsbase(void **); 138 int i386_set_fsbase(void *); 139 int i386_set_gsbase(void *); 140 int i386_set_watch(int, unsigned int, int, int, struct dbreg *); 141 int i386_clr_watch(int, struct dbreg *); 142 int amd64_get_fsbase(void **); 143 int amd64_get_gsbase(void **); 144 int amd64_set_fsbase(void *); 145 int amd64_set_gsbase(void *); 146 int amd64_set_tlsbase(void *); 147 int x86_pkru_get_perm(unsigned int keyidx, int *access, int *modify); 148 int x86_pkru_set_perm(unsigned int keyidx, int access, int modify); 149 int x86_pkru_protect_range(void *addr, unsigned long len, unsigned int keyidx, 150 int flag); 151 int x86_pkru_unprotect_range(void *addr, unsigned long len); 152 int sysarch(int, void *); 153 __END_DECLS 154 #else 155 struct thread; 156 union descriptor; 157 158 int i386_get_ldt(struct thread *, struct i386_ldt_args *); 159 int i386_set_ldt(struct thread *, struct i386_ldt_args *, union descriptor *); 160 int i386_get_ioperm(struct thread *, struct i386_ioperm_args *); 161 int i386_set_ioperm(struct thread *, struct i386_ioperm_args *); 162 int amd64_get_ldt(struct thread *, struct i386_ldt_args *); 163 int amd64_set_ldt(struct thread *, struct i386_ldt_args *, 164 struct user_segment_descriptor *); 165 int amd64_get_ioperm(struct thread *, struct i386_ioperm_args *); 166 int amd64_set_ioperm(struct thread *, struct i386_ioperm_args *); 167 #endif 168 169 #endif /* !_MACHINE_SYSARCH_H_ */ 170