The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/x86/include/sysarch.h

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    1 /*-
    2  * Copyright (c) 1993 The Regents of the University of California.
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  * 4. Neither the name of the University nor the names of its contributors
   14  *    may be used to endorse or promote products derived from this software
   15  *    without specific prior written permission.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   27  * SUCH DAMAGE.
   28  *
   29  * $FreeBSD: releng/10.4/sys/x86/include/sysarch.h 233209 2012-03-19 21:57:31Z tijl $
   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 
   54 /* Leave space for 0-127 for to avoid translating syscalls */
   55 #define AMD64_GET_FSBASE        128
   56 #define AMD64_SET_FSBASE        129
   57 #define AMD64_GET_GSBASE        130
   58 #define AMD64_SET_GSBASE        131
   59 #define AMD64_GET_XFPUSTATE     132
   60 
   61 struct i386_ioperm_args {
   62         unsigned int start;
   63         unsigned int length;
   64         int     enable;
   65 };
   66 
   67 #ifdef __i386__
   68 struct i386_ldt_args {
   69         unsigned int start;
   70         union descriptor *descs;
   71         unsigned int num;
   72 };
   73 
   74 struct i386_vm86_args {
   75         int     sub_op;                 /* sub-operation to perform */
   76         char    *sub_args;              /* args */
   77 };
   78 
   79 struct i386_get_xfpustate {
   80         void *addr;
   81         int len;
   82 };
   83 #else
   84 struct i386_ldt_args {
   85         unsigned int start;
   86         struct user_segment_descriptor *descs __packed;
   87         unsigned int num;
   88 };
   89 
   90 struct i386_get_xfpustate {
   91         unsigned int addr;
   92         int len;
   93 };
   94 
   95 struct amd64_get_xfpustate {
   96         void *addr;
   97         int len;
   98 };
   99 #endif
  100 
  101 #ifndef _KERNEL
  102 union descriptor;
  103 struct dbreg;
  104 
  105 __BEGIN_DECLS
  106 int i386_get_ldt(int, union descriptor *, int);
  107 int i386_set_ldt(int, union descriptor *, int);
  108 int i386_get_ioperm(unsigned int, unsigned int *, int *);
  109 int i386_set_ioperm(unsigned int, unsigned int, int);
  110 int i386_vm86(int, void *);
  111 int i386_get_fsbase(void **);
  112 int i386_get_gsbase(void **);
  113 int i386_set_fsbase(void *);
  114 int i386_set_gsbase(void *);
  115 int i386_set_watch(int, unsigned int, int, int, struct dbreg *);
  116 int i386_clr_watch(int, struct dbreg *);
  117 int amd64_get_fsbase(void **);
  118 int amd64_get_gsbase(void **);
  119 int amd64_set_fsbase(void *);
  120 int amd64_set_gsbase(void *);
  121 int sysarch(int, void *);
  122 __END_DECLS
  123 #else
  124 struct thread;
  125 union descriptor;
  126 
  127 int i386_get_ldt(struct thread *, struct i386_ldt_args *);
  128 int i386_set_ldt(struct thread *, struct i386_ldt_args *, union descriptor *);
  129 int i386_get_ioperm(struct thread *, struct i386_ioperm_args *);
  130 int i386_set_ioperm(struct thread *, struct i386_ioperm_args *);
  131 int amd64_get_ldt(struct thread *, struct i386_ldt_args *);
  132 int amd64_set_ldt(struct thread *, struct i386_ldt_args *,
  133     struct user_segment_descriptor *);
  134 int amd64_get_ioperm(struct thread *, struct i386_ioperm_args *);
  135 int amd64_set_ioperm(struct thread *, struct i386_ioperm_args *);
  136 #endif
  137 
  138 #endif /* !_MACHINE_SYSARCH_H_ */

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