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


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/i386/include/vm86.h

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
SearchContext: -  none  -  3  -  10 

    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 1997 Jonathan Lemon
    5  * All rights reserved.
    6  *
    7  * Derived from register.h, which is
    8  *     Copyright (c) 1996 Michael Smith.  All rights reserved.
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer.
   15  * 2. Redistributions in binary form must reproduce the above copyright
   16  *    notice, this list of conditions and the following disclaimer in the
   17  *    documentation and/or other materials provided with the distribution.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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  * $FreeBSD$
   32  */
   33 
   34 #ifndef _MACHINE_VM86_H_
   35 #define _MACHINE_VM86_H_ 1
   36 
   37 /* standard register representation */
   38 typedef union {
   39         u_int   r_ex;
   40         struct {
   41                 u_short r_x;
   42                 u_int   :16;
   43         } r_w;
   44         struct {
   45                 u_char  r_l;
   46                 u_char  r_h;
   47                 u_int   :16;
   48         } r_b;
   49 } reg86_t;
   50 
   51 /* layout must match definition of struct trapframe_vm86 in <machine/frame.h> */
   52 
   53 struct vm86frame {
   54         int     kernel_fs;
   55         int     kernel_es;
   56         int     kernel_ds;
   57         reg86_t edi;
   58         reg86_t esi;
   59         reg86_t ebp;
   60         reg86_t isp;
   61         reg86_t ebx;
   62         reg86_t edx;
   63         reg86_t ecx;
   64         reg86_t eax;
   65         int     vmf_trapno;
   66         int     vmf_err;
   67         reg86_t eip;
   68         reg86_t cs;
   69         reg86_t eflags;
   70         reg86_t esp;
   71         reg86_t ss;
   72         reg86_t es;
   73         reg86_t ds;
   74         reg86_t fs;
   75         reg86_t gs;
   76 #define vmf_ah          eax.r_b.r_h
   77 #define vmf_al          eax.r_b.r_l
   78 #define vmf_ax          eax.r_w.r_x
   79 #define vmf_eax         eax.r_ex
   80 #define vmf_bh          ebx.r_b.r_h
   81 #define vmf_bl          ebx.r_b.r_l
   82 #define vmf_bx          ebx.r_w.r_x
   83 #define vmf_ebx         ebx.r_ex
   84 #define vmf_ch          ecx.r_b.r_h
   85 #define vmf_cl          ecx.r_b.r_l
   86 #define vmf_cx          ecx.r_w.r_x
   87 #define vmf_ecx         ecx.r_ex
   88 #define vmf_dh          edx.r_b.r_h
   89 #define vmf_dl          edx.r_b.r_l
   90 #define vmf_dx          edx.r_w.r_x
   91 #define vmf_edx         edx.r_ex
   92 #define vmf_si          esi.r_w.r_x
   93 #define vmf_di          edi.r_w.r_x
   94 #define vmf_cs          cs.r_w.r_x
   95 #define vmf_ds          ds.r_w.r_x
   96 #define vmf_es          es.r_w.r_x
   97 #define vmf_ss          ss.r_w.r_x
   98 #define vmf_bp          ebp.r_w.r_x
   99 #define vmf_sp          esp.r_w.r_x
  100 #define vmf_ip          eip.r_w.r_x
  101 #define vmf_flags       eflags.r_w.r_x
  102 #define vmf_eflags      eflags.r_ex
  103 };
  104 
  105 #define VM86_PMAPSIZE   24
  106 #define VMAP_MALLOC     1       /* page was malloced by us */
  107 
  108 struct vm86context {
  109         int     npages;
  110         struct  vm86pmap {
  111                 int     flags;
  112                 int     pte_num;
  113                 vm_offset_t     kva;
  114                 u_int   old_pte;
  115         } pmap[VM86_PMAPSIZE];
  116 };
  117 
  118 #define VM_USERCHANGE   (PSL_USERCHANGE)
  119 #define VME_USERCHANGE  (VM_USERCHANGE | PSL_VIP | PSL_VIF)
  120 
  121 struct vm86_kernel {
  122         caddr_t vm86_intmap;                    /* interrupt map */
  123         u_int   vm86_eflags;                    /* emulated flags */
  124         int     vm86_has_vme;                   /* VME support */
  125         int     vm86_inited;                    /* we were initialized */
  126         int     vm86_debug;
  127         caddr_t vm86_sproc;                     /* address of sproc */
  128 };
  129 
  130 #define VM86_INIT       1
  131 #define VM86_SET_VME    2
  132 #define VM86_GET_VME    3
  133 #define VM86_INTCALL    4
  134 
  135 struct vm86_init_args {
  136         int     debug;                  /* debug flag */
  137         int     cpu_type;               /* cpu type to emulate */
  138         u_char  int_map[32];            /* interrupt map */ 
  139 };
  140 
  141 struct vm86_vme_args {
  142         int     state;                  /* status */
  143 };
  144 
  145 struct vm86_intcall_args {
  146         int     intnum;
  147         struct  vm86frame vmf;
  148 };
  149 
  150 #ifdef _KERNEL
  151 extern  int vm86paddr;
  152 
  153 struct thread;
  154 extern  int vm86_emulate(struct vm86frame *);
  155 extern  int vm86_sysarch(struct thread *, char *);
  156 extern void vm86_trap(struct vm86frame *);
  157 extern  int vm86_intcall(int, struct vm86frame *);
  158 extern  int vm86_datacall(int, struct vm86frame *, struct vm86context *);
  159 extern void vm86_initialize(void);
  160 extern vm_offset_t vm86_getpage(struct vm86context *, int);
  161 extern vm_offset_t vm86_addpage(struct vm86context *, int, vm_offset_t);
  162 extern int vm86_getptr(struct vm86context *, vm_offset_t, u_short *, u_short *);
  163 
  164 extern vm_offset_t vm86_getaddr(struct vm86context *, u_short, u_short);
  165 #endif /* _KERNEL */
  166 
  167 #endif /* _MACHINE_VM86_H_ */

Cache object: 56d48b3fd4a9130872f4722d17fe5133


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.