1 /*-
2 * Copyright (c) 1990 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * William Jolitz.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 4. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * from: @(#)frame.h 5.2 (Berkeley) 1/18/91
33 * $FreeBSD: releng/9.0/sys/i386/include/frame.h 153666 2005-12-22 22:16:09Z jhb $
34 */
35
36 #ifndef _MACHINE_FRAME_H_
37 #define _MACHINE_FRAME_H_ 1
38
39 /*
40 * System stack frames.
41 */
42
43 /*
44 * Exception/Trap Stack Frame
45 */
46
47 struct trapframe {
48 int tf_fs;
49 int tf_es;
50 int tf_ds;
51 int tf_edi;
52 int tf_esi;
53 int tf_ebp;
54 int tf_isp;
55 int tf_ebx;
56 int tf_edx;
57 int tf_ecx;
58 int tf_eax;
59 int tf_trapno;
60 /* below portion defined in 386 hardware */
61 int tf_err;
62 int tf_eip;
63 int tf_cs;
64 int tf_eflags;
65 /* below only when crossing rings (e.g. user to kernel) */
66 int tf_esp;
67 int tf_ss;
68 };
69
70 /* Superset of trap frame, for traps from virtual-8086 mode */
71
72 struct trapframe_vm86 {
73 int tf_fs;
74 int tf_es;
75 int tf_ds;
76 int tf_edi;
77 int tf_esi;
78 int tf_ebp;
79 int tf_isp;
80 int tf_ebx;
81 int tf_edx;
82 int tf_ecx;
83 int tf_eax;
84 int tf_trapno;
85 /* below portion defined in 386 hardware */
86 int tf_err;
87 int tf_eip;
88 int tf_cs;
89 int tf_eflags;
90 /* below only when crossing rings (e.g. user to kernel) */
91 int tf_esp;
92 int tf_ss;
93 /* below only when switching out of VM86 mode */
94 int tf_vm86_es;
95 int tf_vm86_ds;
96 int tf_vm86_fs;
97 int tf_vm86_gs;
98 };
99
100 #endif /* _MACHINE_FRAME_H_ */
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