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Annotation of sys/arch/i386/include/tss.h, Revision 1.1.1.1

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_ */