1/* $OpenBSD: frame.h,v 1.11 2024/01/31 06:06:28 guenther Exp $ */
2/* $NetBSD: frame.h,v 1.1 2003/04/26 18:39:40 fvdl Exp $ */
3
4/*-
5 * Copyright (c) 1998 The NetBSD Foundation, Inc.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to The NetBSD Foundation
9 * by Charles M. Hannum.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32
33/*-
34 * Copyright (c) 1990 The Regents of the University of California.
35 * All rights reserved.
36 *
37 * This code is derived from software contributed to Berkeley by
38 * William Jolitz.
39 *
40 * Redistribution and use in source and binary forms, with or without
41 * modification, are permitted provided that the following conditions
42 * are met:
43 * 1. Redistributions of source code must retain the above copyright
44 * notice, this list of conditions and the following disclaimer.
45 * 2. Redistributions in binary form must reproduce the above copyright
46 * notice, this list of conditions and the following disclaimer in the
47 * documentation and/or other materials provided with the distribution.
48 * 3. Neither the name of the University nor the names of its contributors
49 * may be used to endorse or promote products derived from this software
50 * without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
55 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
56 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
57 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
58 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
60 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
61 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
62 * SUCH DAMAGE.
63 *
64 * @(#)frame.h 5.2 (Berkeley) 1/18/91
65 */
66
67/*
68 * Adapted for NetBSD/amd64 by fvdl@wasabisystems.com
69 */
70
71#ifndef _MACHINE_FRAME_H_
72#define _MACHINE_FRAME_H_
73
74#include <sys/signal.h>
75#include <machine/fpu.h>
76
77/*
78 * System stack frames.
79 */
80
81/*
82 * Exception/Trap Stack Frame
83 */
84struct trapframe {
85 int64_t tf_rdi; /* ordered by syscall args... */
86 int64_t tf_rsi;
87 int64_t tf_rdx;
88 int64_t tf_r10;
89 int64_t tf_r8;
90 int64_t tf_r9; /* ...to here */
91 int64_t tf_rcx;
92 int64_t tf_r11;
93 int64_t tf_r12;
94 int64_t tf_r13;
95 int64_t tf_r14;
96 int64_t tf_r15;
97 int64_t tf_err; /* not the hardware position */
98 int64_t tf_rbx;
99 int64_t tf_rax;
100 int64_t tf_trapno;
101 int64_t tf_rbp; /* hardware puts err here, INTRENTRY() moves it up */
102 /* below portion defined in hardware */
103 int64_t tf_rip;
104 int64_t tf_cs;
105 int64_t tf_rflags;
106 /* These are pushed unconditionally on the x86-64 */
107 int64_t tf_rsp;
108 int64_t tf_ss;
109};
110
111/*
112 * Interrupt stack frame
113 */
114struct intrframe {
115 int64_t if_rdi;
116 int64_t if_rsi;
117 int64_t if_rdx;
118 int64_t if_r10;
119 int64_t if_r8;
120 int64_t if_r9;
121 int64_t if_rcx;
122 int64_t if_r11;
123 int64_t if_r12;
124 int64_t if_r13;
125 int64_t if_r14;
126 int64_t if_r15;
127 int64_t if_err; /* IREENT_MAGIC if resume/recurse */
128 int64_t if_rbx;
129 int64_t if_rax;
130 int64_t if_ppl; /* previous priority level */
131 int64_t if_rbp;
132 /* below portion defined in hardware */
133 int64_t if_rip;
134 int64_t if_cs;
135 int64_t if_rflags;
136 /* These are pushed unconditionally on the x86-64 */
137 int64_t if_rsp;
138 int64_t if_ss;
139};
140
141
142/*
143 * The trampoline frame used on the kernel stack page which is present
144 * but kernel-only, in the page tables used when in userspace. This is
145 * the minimum for iretq operation.
146 */
147struct iretq_frame {
148 int64_t iretq_rip;
149 int64_t iretq_cs;
150 int64_t iretq_rflags;
151 int64_t iretq_rsp;
152 int64_t iretq_ss;
153};
154
155/*
156 * Stack frame inside cpu_switch()
157 */
158struct switchframe {
159 int64_t sf_r15;
160 int64_t sf_r14;
161 int64_t sf_r13;
162 int64_t sf_r12;
163 int64_t sf_rbp;
164 int64_t sf_rbx;
165 int64_t sf_rip;
166};
167
168struct callframe {
169 struct callframe *f_frame;
170 long f_retaddr;
171 long f_arg0;
172};
173
174#endif /* _MACHINE_FRAME_H_ */