2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 1997 Jonathan Lemon
7 * Derived from register.h, which is
8 * Copyright (c) 1996 Michael Smith. All rights reserved.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
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.
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
34 #ifndef _MACHINE_VM86_H_
35 #define _MACHINE_VM86_H_ 1
37 /* standard register representation */
51 /* layout must match definition of struct trapframe_vm86 in <machine/frame.h> */
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
105 #define VM86_PMAPSIZE 24
106 #define VMAP_MALLOC 1 /* page was malloced by us */
115 } pmap[VM86_PMAPSIZE];
118 #define VM_USERCHANGE (PSL_USERCHANGE)
119 #define VME_USERCHANGE (VM_USERCHANGE | PSL_VIP | PSL_VIF)
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 */
127 caddr_t vm86_sproc; /* address of sproc */
131 #define VM86_SET_VME 2
132 #define VM86_GET_VME 3
133 #define VM86_INTCALL 4
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 */
141 struct vm86_vme_args {
142 int state; /* status */
145 struct vm86_intcall_args {
147 struct vm86frame vmf;
151 extern int vm86paddr;
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 *);
164 extern vm_offset_t vm86_getaddr(struct vm86context *, u_short, u_short);
167 #endif /* _MACHINE_VM86_H_ */