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      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 2006 Sun Microsystems, Inc.  All rights reserved.
     27  * Use is subject to license terms.
     28  */
     29 
     30 #ifndef _IA32_SYS_TRAP_H
     31 #define	_IA32_SYS_TRAP_H
     32 
     33 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     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_EXTERRFLT	0x10	/* #mf	x87 FPU error fault		*/
     59 #define	T_ALIGNMENT	0x11	/* #ac	alignment check error		*/
     60 #define	T_MCE		0x12	/* #mc	machine check exception		*/
     61 #define	T_SIMDFPE	0x13	/* #xm	SSE/SSE exception		*/
     62 #define	T_DBGENTR	0x14	/*	debugger entry 			*/
     63 #define	T_ENDPERR	0x21	/*	emulated extension error flt	*/
     64 #define	T_ENOEXTFLT	0x20	/*	emulated ext not present	*/
     65 #define	T_FASTTRAP	0xd2	/*	fast system call		*/
     66 #define	T_SYSCALLINT	0x91	/*	general system call		*/
     67 #define	T_DTRACE_RET	0x7f	/*	DTrace pid return		*/
     68 #define	T_INT80		0x80	/*	int80 handler for linux emulation */
     69 #define	T_SOFTINT	0x50fd	/*	pseudo softint trap type	*/
     70 
     71 /*
     72  * Pseudo traps.
     73  */
     74 #define	T_INTERRUPT		0x100
     75 #define	T_FAULT			0x200
     76 #define	T_AST			0x400
     77 #define	T_SYSCALL		0x180
     78 
     79 
     80 /*
     81  *  Values of error code on stack in case of page fault
     82  */
     83 
     84 #define	PF_ERR_MASK	0x01	/* Mask for error bit */
     85 #define	PF_ERR_PAGE	0x00	/* page not present */
     86 #define	PF_ERR_PROT	0x01	/* protection error */
     87 #define	PF_ERR_WRITE	0x02	/* fault caused by write (else read) */
     88 #define	PF_ERR_USER	0x04	/* processor was in user mode */
     89 				/*	(else supervisor) */
     90 #define	PF_ERR_EXEC	0x10	/* attempt to execute a No eXec page (AMD) */
     91 
     92 /*
     93  *  Definitions for fast system call subfunctions
     94  */
     95 #define	T_FNULL		0	/* Null trap for testing		*/
     96 #define	T_FGETFP	1	/* Get emulated FP context		*/
     97 #define	T_FSETFP	2	/* Set emulated FP context		*/
     98 #define	T_GETHRTIME	3	/* Get high resolution time		*/
     99 #define	T_GETHRVTIME	4	/* Get high resolution virtual time	*/
    100 #define	T_GETHRESTIME	5	/* Get high resolution time		*/
    101 #define	T_GETLGRP	6	/* Get home lgrpid			*/
    102 
    103 #define	T_LASTFAST	6	/* Last valid subfunction		*/
    104 
    105 #ifdef	__cplusplus
    106 }
    107 #endif
    108 
    109 #endif	/* _IA32_SYS_TRAP_H */
    110