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 */