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