1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /* Copyright (c) 1990, 1991 UNIX System Laboratories, Inc. */
22 /* Copyright (c) 1984, 1986, 1987, 1988, 1989, 1990 AT&T */
23 /* All Rights Reserved */
24
25 /*
26 * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
27 * Use is subject to license terms.
28 *
29 * Copyright 2018 Joyent, Inc.
30 */
31
32 #ifndef _IA32_SYS_TRAP_H
33 #define _IA32_SYS_TRAP_H
34
35 #ifdef __cplusplus
36 extern "C" {
37 #endif
38
39 /*
40 * Trap type values
41 */
42
43 #define T_ZERODIV 0x0 /* #de divide by 0 error */
44 #define T_SGLSTP 0x1 /* #db single step */
45 #define T_NMIFLT 0x2 /* NMI */
46 #define T_BPTFLT 0x3 /* #bp breakpoint fault, INT3 insn */
47 #define T_OVFLW 0x4 /* #of INTO overflow fault */
48 #define T_BOUNDFLT 0x5 /* #br BOUND insn fault */
49 #define T_ILLINST 0x6 /* #ud invalid opcode fault */
50 #define T_NOEXTFLT 0x7 /* #nm device not available: x87 */
51 #define T_DBLFLT 0x8 /* #df double fault */
52 #define T_EXTOVRFLT 0x9 /* [not generated: 386 only] */
53 #define T_TSSFLT 0xa /* #ts invalid TSS fault */
54 #define T_SEGFLT 0xb /* #np segment not present fault */
55 #define T_STKFLT 0xc /* #ss stack fault */
56 #define T_GPFLT 0xd /* #gp general protection fault */
57 #define T_PGFLT 0xe /* #pf page fault */
58 #define T_RESVTRAP 0xf /* reserved */
59 #define T_EXTERRFLT 0x10 /* #mf x87 FPU error fault */
60 #define T_ALIGNMENT 0x11 /* #ac alignment check error */
61 #define T_MCE 0x12 /* #mc machine check exception */
62 #define T_SIMDFPE 0x13 /* #xm SSE/SSE exception */
63 #define T_DBGENTR 0x14 /* debugger entry */
64 #define T_INVALTRAP 0x1e /* invalid */
65 #define T_ENDPERR 0x21 /* emulated extension error flt */
66 #define T_ENOEXTFLT 0x20 /* emulated ext not present */
67 #define T_FASTTRAP 0xd2 /* fast system call */
68 #define T_SYSCALLINT 0x91 /* general system call */
69 #define T_DTRACE_RET 0x92 /* DTrace pid return */
70 #define T_INT80 0x80 /* int80 handler for linux emulation */
71 #define T_SOFTINT 0x50fd /* pseudo softint trap type */
72
73 /*
74 * Pseudo traps.
75 */
76 #define T_INTERRUPT 0x100
77 #define T_FAULT 0x200
78 #define T_AST 0x400
79 #define T_SYSCALL 0x180
80
81
82 /*
83 * Values of error code on stack in case of page fault
84 */
85
86 #define PF_ERR_MASK 0x01 /* Mask for error bit */
87 #define PF_ERR_PAGE 0x00 /* page not present */
88 #define PF_ERR_PROT 0x01 /* protection error */
89 #define PF_ERR_WRITE 0x02 /* fault caused by write (else read) */
90 #define PF_ERR_USER 0x04 /* processor was in user mode */
91 /* (else supervisor) */
92 #define PF_ERR_EXEC 0x10 /* attempt to execute a No eXec page (AMD) */
93 /* or kernel tried to execute a user page */
94 /* (Intel SMEP) */
95
96 /*
97 * Definitions for fast system call subfunctions
98 */
99 #define T_FNULL 0 /* Null trap for testing */
100 #define T_FGETFP 1 /* Get emulated FP context */
101 #define T_FSETFP 2 /* Set emulated FP context */
102 #define T_GETHRTIME 3 /* Get high resolution time */
103 #define T_GETHRVTIME 4 /* Get high resolution virtual time */
104 #define T_GETHRESTIME 5 /* Get high resolution time */
105 #define T_GETLGRP 6 /* Get home lgrpid */
106
107 #define T_LASTFAST 6 /* Last valid subfunction */
108
109 /*
110 * Offsets for an interrupt/trap frame.
111 */
112 #define T_FRAME_ERR 0
113 #define T_FRAME_RIP 8
114 #define T_FRAME_CS 16
115 #define T_FRAME_RFLAGS 24
116 #define T_FRAME_RSP 32
117 #define T_FRAME_SS 40
118
119 #define T_FRAMERET_RIP 0
120 #define T_FRAMERET_CS 8
121 #define T_FRAMERET_RFLAGS 16
122 #define T_FRAMERET_RSP 24
123 #define T_FRAMERET_SS 32
124
125 #ifdef __cplusplus
126 }
127 #endif
128
129 #endif /* _IA32_SYS_TRAP_H */