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 #define I386_SET_SPLITLOCK 14 56 #define I386_GET_SPLITLOCK 15 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 #define AMD64_GET_TLSBASE 135 67 #define AMD64_SET_TLSBASE 136 68 #define AMD64_DISABLE_TLSBASE 137 69 70 /* Flags for AMD64_SET_PKRU */ 71 #define AMD64_PKRU_EXCL 0x0001 72 #define AMD64_PKRU_PERSIST 0x0002 73 74 struct i386_ioperm_args { 75 unsigned int start; 76 unsigned int length; 77 int enable; 78 }; 79 80 #ifdef __i386__ 81 struct i386_ldt_args { 82 unsigned int start; 83 union descriptor *descs; 84 unsigned int num; 85 }; 86 87 struct i386_vm86_args { 88 int sub_op; /* sub-operation to perform */ 89 char *sub_args; /* args */ 90 }; 91 92 struct i386_get_xfpustate { 93 void *addr; 94 int len; 95 }; 96 #else 97 struct i386_ldt_args { 98 unsigned int start; 99 struct user_segment_descriptor *descs __packed; 100 unsigned int num; 101 }; 102 103 struct i386_get_xfpustate { 104 unsigned int addr; 105 int len; 106 }; 107 108 struct i386_set_pkru { 109 unsigned int addr; 110 unsigned int len; 111 unsigned int keyidx; 112 int flags; 113 }; 114 115 struct amd64_get_xfpustate { 116 void *addr; 117 int len; 118 }; 119 #endif 120 121 struct amd64_set_pkru { 122 void *addr; 123 unsigned long len; 124 unsigned int keyidx; 125 int flags; 126 }; 127 128 #ifndef _KERNEL 129 union descriptor; 130 struct dbreg; 131 132 __BEGIN_DECLS 133 int i386_get_ldt(int, union descriptor *, int); 134 int i386_set_ldt(int, union descriptor *, int); 135 int i386_get_ioperm(unsigned int, unsigned int *, int *); 136 int i386_set_ioperm(unsigned int, unsigned int, int); 137 int i386_vm86(int, void *); 138 int i386_get_fsbase(void **); 139 int i386_get_gsbase(void **); 140 int i386_set_fsbase(void *); 141 int i386_set_gsbase(void *); 142 int i386_set_watch(int, unsigned int, int, int, struct dbreg *); 143 int i386_clr_watch(int, struct dbreg *); 144 int amd64_get_fsbase(void **); 145 int amd64_get_gsbase(void **); 146 int amd64_set_fsbase(void *); 147 int amd64_set_gsbase(void *); 148 int amd64_set_tlsbase(void *); 149 int x86_pkru_get_perm(unsigned int keyidx, int *access, int *modify); 150 int x86_pkru_set_perm(unsigned int keyidx, int access, int modify); 151 int x86_pkru_protect_range(void *addr, unsigned long len, unsigned int keyidx, 152 int flag); 153 int x86_pkru_unprotect_range(void *addr, unsigned long len); 154 int sysarch(int, void *); 155 __END_DECLS 156 #else 157 struct thread; 158 union descriptor; 159 160 int i386_get_ldt(struct thread *, struct i386_ldt_args *); 161 int i386_set_ldt(struct thread *, struct i386_ldt_args *, union descriptor *); 162 int i386_get_ioperm(struct thread *, struct i386_ioperm_args *); 163 int i386_set_ioperm(struct thread *, struct i386_ioperm_args *); 164 int amd64_get_ldt(struct thread *, struct i386_ldt_args *); 165 int amd64_set_ldt(struct thread *, struct i386_ldt_args *, 166 struct user_segment_descriptor *); 167 int amd64_get_ioperm(struct thread *, struct i386_ioperm_args *); 168 int amd64_set_ioperm(struct thread *, struct i386_ioperm_args *); 169 int amd64_pkru_update(struct thread *, uintptr_t, size_t, u_int, int, bool); 170 #endif 171 172 #endif /* !_MACHINE_SYSARCH_H_ */ 173