Annotation of sys/arch/i386/include/tss.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: tss.h,v 1.7 2006/04/27 15:37:53 mickey 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 _I386_TSS_H_
! 39: #define _I386_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; /* page directory [pointer] paddr */
! 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; /* saved stack pointer */
! 61: int tss_ebp; /* saved frame pointer */
! 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; /* saved segment register */
! 69: int tss_gs; /* saved segment register */
! 70: int tss_ldt; /* LDT selector */
! 71: int tss_ioopt; /* options and I/O permission map offset */
! 72: };
! 73:
! 74: #endif /* _I386_TSS_H_ */
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