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/i386/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/9.2/sys/i386/include/sysarch.h 231979 2012-02-21 20:56:03Z kib $
   30  */
   31 
   32 /*
   33  * Architecture specific syscalls (i386)
   34  */
   35 #ifndef _MACHINE_SYSARCH_H_
   36 #define _MACHINE_SYSARCH_H_
   37 
   38 #define I386_GET_LDT    0
   39 #define I386_SET_LDT    1
   40 #define LDT_AUTO_ALLOC  0xffffffff
   41                                 /* I386_IOPL */
   42 #define I386_GET_IOPERM 3
   43 #define I386_SET_IOPERM 4
   44                                 /* xxxxx */
   45 #define I386_VM86       6
   46 #define I386_GET_FSBASE 7
   47 #define I386_SET_FSBASE 8
   48 #define I386_GET_GSBASE 9
   49 #define I386_SET_GSBASE 10
   50 #define I386_GET_XFPUSTATE 11
   51 
   52 /* These four only exist when running an i386 binary on amd64 */
   53 #define _AMD64_GET_FSBASE       128
   54 #define _AMD64_SET_FSBASE       129
   55 #define _AMD64_GET_GSBASE       130
   56 #define _AMD64_SET_GSBASE       131
   57 
   58 struct i386_ldt_args {
   59         unsigned int start;
   60         union   descriptor *descs;
   61         unsigned int num;
   62 }; 
   63 
   64 struct i386_ioperm_args {
   65         unsigned int start;
   66         unsigned int length;
   67         int     enable;
   68 };
   69 
   70 struct i386_vm86_args {
   71         int     sub_op;                 /* sub-operation to perform */
   72         char    *sub_args;              /* args */
   73 };
   74 
   75 struct i386_get_xfpustate {
   76         void *addr;
   77         int len;
   78 };
   79 
   80 #ifndef _KERNEL
   81 #include <sys/cdefs.h>
   82 
   83 union descriptor;
   84 struct dbreg;
   85 
   86 __BEGIN_DECLS
   87 /* These four only exist when running an i386 binary on amd64 */
   88 int _amd64_get_fsbase(void **);
   89 int _amd64_get_gsbase(void **);
   90 int _amd64_set_fsbase(void *);
   91 int _amd64_set_gsbase(void *);
   92 int i386_get_ldt(int, union descriptor *, int);
   93 int i386_set_ldt(int, union descriptor *, int);
   94 int i386_get_ioperm(unsigned int, unsigned int *, int *);
   95 int i386_set_ioperm(unsigned int, unsigned int, int);
   96 int i386_vm86(int, void *);
   97 int i386_get_fsbase(void **);
   98 int i386_get_gsbase(void **);
   99 int i386_set_fsbase(void *);
  100 int i386_set_gsbase(void *);
  101 int i386_set_watch(int, unsigned int, int, int, struct dbreg *);
  102 int i386_clr_watch(int, struct dbreg *);
  103 int sysarch(int, void *);
  104 __END_DECLS
  105 #else
  106 struct thread;
  107 union descriptor;
  108 
  109 int i386_get_ldt(struct thread *, struct i386_ldt_args *);
  110 int i386_set_ldt(struct thread *, struct i386_ldt_args *, union descriptor *);
  111 int i386_get_ioperm(struct thread *, struct i386_ioperm_args *);
  112 int i386_set_ioperm(struct thread *, struct i386_ioperm_args *);
  113 #endif
  114 
  115 #endif /* !_MACHINE_SYSARCH_H_ */

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