| 1 | /* $OpenBSD: tss.h,v 1.12 2018/06/22 13:21:14 bluhm Exp $ */ |
| 2 | /* $NetBSD: tss.h,v 1.6 1995/10/11 04:20:28 mycroft Exp $ */ |
| 3 | |
| 4 | /*- |
| 5 | * Copyright (c) 1990 The Regents of the University of California. |
| 6 | * All rights reserved. |
| 7 | * |
| 8 | * This code is derived from software contributed to Berkeley by |
| 9 | * William Jolitz. |
| 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 | * 3. Neither the name of the University nor the names of its contributors |
| 20 | * may be used to endorse or promote products derived from this software |
| 21 | * without specific prior written permission. |
| 22 | * |
| 23 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 24 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 25 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 26 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 27 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 28 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 29 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 30 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 31 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 32 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 33 | * SUCH DAMAGE. |
| 34 | * |
| 35 | * @(#)tss.h 5.4 (Berkeley) 1/18/91 |
| 36 | */ |
| 37 | |
| 38 | #ifndef _MACHINE_TSS_H_ |
| 39 | #define _MACHINE_TSS_H_ |
| 40 | |
| 41 | /* |
| 42 | * Intel 386 Context Data Type |
| 43 | */ |
| 44 | |
| 45 | struct i386tss { |
| 46 | int __tss_link; |
| 47 | int tss_esp0; /* kernel stack pointer at privilege level 0 */ |
| 48 | int tss_ss0; /* kernel stack segment at privilege level 0 */ |
| 49 | int __tss_esp1; |
| 50 | int __tss_ss1; |
| 51 | int __tss_esp2; |
| 52 | int __tss_ss2; |
| 53 | int tss_cr3; |
| 54 | int tss_eip; |
| 55 | int tss_eflags; |
| 56 | int tss_eax; |
| 57 | int tss_ecx; |
| 58 | int tss_edx; |
| 59 | int tss_ebx; |
| 60 | int tss_esp; |
| 61 | int tss_ebp; |
| 62 | int tss_esi; |
| 63 | int tss_edi; |
| 64 | int tss_es; |
| 65 | int tss_cs; |
| 66 | int tss_ss; |
| 67 | int tss_ds; |
| 68 | int tss_fs; |
| 69 | int tss_gs; |
| 70 | int tss_ldt; |
| 71 | int tss_ioopt; /* options and I/O permission map offset */ |
| 72 | }; |
| 73 | |
| 74 | #endif /* _MACHINE_TSS_H_ */ |