/* * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* * @OSF_COPYRIGHT@ */ /* * Mach Operating System * Copyright (c) 1991,1990,1989 Carnegie Mellon University * All Rights Reserved. * * Permission to use, copy, modify and distribute this software and its * documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie Mellon * the rights to redistribute these changes. */ /* */ #ifndef _I386_TSS_H_ #define _I386_TSS_H_ /* * i386 Task State Segment */ struct i386_tss { int back_link; /* segment number of previous task, if nested */ int esp0; /* initial stack pointer ... */ int ss0; /* and segment for ring 0 */ int esp1; /* initial stack pointer ... */ int ss1; /* and segment for ring 1 */ int esp2; /* initial stack pointer ... */ int ss2; /* and segment for ring 2 */ int cr3; /* CR3 - page table directory physical address */ int eip; int eflags; int eax; int ecx; int edx; int ebx; int esp; /* current stack pointer */ int ebp; int esi; int edi; int es; int cs; int ss; /* current stack segment */ int ds; int fs; int gs; int ldt; /* local descriptor table segment */ unsigned short trace_trap; /* trap on switch to this task */ unsigned short io_bit_map_offset; /* offset to start of IO permission bit map */ }; #endif /* _I386_TSS_H_ */