| | 1 | /* |
| | 2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. |
| | 3 | * |
| | 4 | * @APPLE_LICENSE_HEADER_START@ |
| | 5 | * |
| | 6 | * The contents of this file constitute Original Code as defined in and |
| | 7 | * are subject to the Apple Public Source License Version 1.1 (the |
| | 8 | * "License"). You may not use this file except in compliance with the |
| | 9 | * License. Please obtain a copy of the License at |
| | 10 | * http://www.apple.com/publicsource and read it before using this file. |
| | 11 | * |
| | 12 | * This Original Code and all software distributed under the License are |
| | 13 | * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
| | 14 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| | 15 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
| | 16 | * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the |
| | 17 | * License for the specific language governing rights and limitations |
| | 18 | * under the License. |
| | 19 | * |
| | 20 | * @APPLE_LICENSE_HEADER_END@ |
| | 21 | */ |
| | 22 | /* |
| | 23 | * @OSF_COPYRIGHT@ |
| | 24 | */ |
| | 25 | /* |
| | 26 | * Mach Operating System |
| | 27 | * Copyright (c) 1991,1990,1989 Carnegie Mellon University |
| | 28 | * All Rights Reserved. |
| | 29 | * |
| | 30 | * Permission to use, copy, modify and distribute this software and its |
| | 31 | * documentation is hereby granted, provided that both the copyright |
| | 32 | * notice and this permission notice appear in all copies of the |
| | 33 | * software, derivative works or modified versions, and any portions |
| | 34 | * thereof, and that both notices appear in supporting documentation. |
| | 35 | * |
| | 36 | * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" |
| | 37 | * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR |
| | 38 | * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. |
| | 39 | * |
| | 40 | * Carnegie Mellon requests users of this software to return to |
| | 41 | * |
| | 42 | * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU |
| | 43 | * School of Computer Science |
| | 44 | * Carnegie Mellon University |
| | 45 | * Pittsburgh PA 15213-3890 |
| | 46 | * |
| | 47 | * any improvements or extensions that they make and grant Carnegie Mellon |
| | 48 | * the rights to redistribute these changes. |
| | 49 | */ |
| | 50 | /* |
| | 51 | */ |
| | 52 | |
| | 53 | #ifndef _I386_TSS_H_ |
| | 54 | #define _I386_TSS_H_ |
| | 55 | |
| | 56 | /* |
| | 57 | * i386 Task State Segment |
| | 58 | */ |
| | 59 | struct i386_tss { |
| | 60 | int back_link; /* segment number of previous task, |
| | 61 | if nested */ |
| | 62 | int esp0; /* initial stack pointer ... */ |
| | 63 | int ss0; /* and segment for ring 0 */ |
| | 64 | int esp1; /* initial stack pointer ... */ |
| | 65 | int ss1; /* and segment for ring 1 */ |
| | 66 | int esp2; /* initial stack pointer ... */ |
| | 67 | int ss2; /* and segment for ring 2 */ |
| | 68 | int cr3; /* CR3 - page table directory |
| | 69 | physical address */ |
| | 70 | int eip; |
| | 71 | int eflags; |
| | 72 | int eax; |
| | 73 | int ecx; |
| | 74 | int edx; |
| | 75 | int ebx; |
| | 76 | int esp; /* current stack pointer */ |
| | 77 | int ebp; |
| | 78 | int esi; |
| | 79 | int edi; |
| | 80 | int es; |
| | 81 | int cs; |
| | 82 | int ss; /* current stack segment */ |
| | 83 | int ds; |
| | 84 | int fs; |
| | 85 | int gs; |
| | 86 | int ldt; /* local descriptor table segment */ |
| | 87 | unsigned short trace_trap; /* trap on switch to this task */ |
| | 88 | unsigned short io_bit_map_offset; |
| | 89 | /* offset to start of IO permission |
| | 90 | bit map */ |
| | 91 | }; |
| | 92 | |
| | 93 | #endif /* _I386_TSS_H_ */ |
projects / apple / xnu.git / blame_incremental