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tss.h revision 1.6.46.1 
      1 /*	$NetBSD: tss.h,v 1.6.46.1 2002/10/18 02:37:59 nathanw Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1990 The Regents of the University of California.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to Berkeley by
      8  * William Jolitz.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the University of
     21  *	California, Berkeley and its contributors.
     22  * 4. Neither the name of the University nor the names of its contributors
     23  *    may be used to endorse or promote products derived from this software
     24  *    without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     36  * SUCH DAMAGE.
     37  *
     38  *	@(#)tss.h	5.4 (Berkeley) 1/18/91
     39  */
     40 
     41 #ifndef _I386_TSS_H_
     42 #define _I386_TSS_H_
     43 
     44 /*
     45  * Intel 386 Context Data Type
     46  */
     47 
     48 struct i386tss {
     49 	int	__tss_link;
     50 	int	tss_esp0; 	/* kernel stack pointer at privilege level 0 */
     51 	int	tss_ss0;	/* kernel stack segment at privilege level 0 */
     52 	int	__tss_esp1;
     53 	int	__tss_ss1;
     54 	int	__tss_esp2;
     55 	int	__tss_ss2;
     56 	int	tss_cr3;	/* page directory paddr */
     57 	int	__tss_eip;
     58 	int	__tss_eflags;
     59 	int	__tss_eax;
     60 	int	__tss_ecx;
     61 	int	__tss_edx;
     62 	int	__tss_ebx;
     63 	int	tss_esp;	/* saved stack pointer */
     64 	int	tss_ebp;	/* saved frame pointer */
     65 	int	__tss_esi;
     66 	int	__tss_edi;
     67 	int	__tss_es;
     68 	int	__tss_cs;
     69 	int	__tss_ss;
     70 	int	__tss_ds;
     71 	int	tss_fs;		/* saved segment register */
     72 	int	tss_gs;		/* saved segment register */
     73 	int	tss_ldt;	/* LDT selector */
     74 	int	tss_ioopt;	/* options and I/O permission map offset */
     75 };
     76 
     77 #endif /* #ifndef _I386_TSS_H_ */
     78