projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c79356b | 1 | /* |
| 39236c6e | 2 | * Copyright (c) 2000-2012 Apple Inc. All rights reserved. |
| 1c79356b | 3 | * |
| 2d21ac55 | 4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
| 1c79356b | 5 | * |
| 2d21ac55 A |
6 | * This file contains Original Code and/or Modifications of Original Code |
| 7 | * as defined in and that are subject to the Apple Public Source License | |
| 8 | * Version 2.0 (the 'License'). You may not use this file except in | |
| 9 | * compliance with the License. The rights granted to you under the License | |
| 10 | * may not be used to create, or enable the creation or redistribution of, | |
| 11 | * unlawful or unlicensed copies of an Apple operating system, or to | |
| 12 | * circumvent, violate, or enable the circumvention or violation of, any | |
| 13 | * terms of an Apple operating system software license agreement. | |
| 8f6c56a5 | 14 | * |
| 2d21ac55 A |
15 | * Please obtain a copy of the License at |
| 16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. | |
| 17 | * | |
| 18 | * The Original Code and all software distributed under the License are | |
| 19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 8f6c56a5 A |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 2d21ac55 A |
22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
| 23 | * Please see the License for the specific language governing rights and | |
| 24 | * limitations under the License. | |
| 8f6c56a5 | 25 | * |
| 2d21ac55 | 26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
| 1c79356b A |
27 | */ |
| 28 | /* | |
| 29 | * @OSF_COPYRIGHT@ | |
| 30 | */ | |
| 31 | /* | |
| 32 | * Mach Operating System | |
| 33 | * Copyright (c) 1991,1990 Carnegie Mellon University | |
| 34 | * All Rights Reserved. | |
| 35 | * | |
| 36 | * Permission to use, copy, modify and distribute this software and its | |
| 37 | * documentation is hereby granted, provided that both the copyright | |
| 38 | * notice and this permission notice appear in all copies of the | |
| 39 | * software, derivative works or modified versions, and any portions | |
| 40 | * thereof, and that both notices appear in supporting documentation. | |
| 41 | * | |
| 42 | * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" | |
| 43 | * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR | |
| 44 | * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. | |
| 45 | * | |
| 46 | * Carnegie Mellon requests users of this software to return to | |
| 47 | * | |
| 48 | * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU | |
| 49 | * School of Computer Science | |
| 50 | * Carnegie Mellon University | |
| 51 | * Pittsburgh PA 15213-3890 | |
| 52 | * | |
| 53 | * any improvements or extensions that they make and grant Carnegie Mellon | |
| 54 | * the rights to redistribute these changes. | |
| 55 | */ | |
| 56 | /* | |
| 57 | */ | |
| 58 | ||
| 59 | /* | |
| 60 | * Kernel task state segment. | |
| 61 | * | |
| 62 | * We don't use the i386 task switch mechanism. We need a TSS | |
| 63 | * only to hold the kernel stack pointer for the current thread. | |
| 1c79356b A |
64 | */ |
| 65 | #include <i386/tss.h> | |
| b0d623f7 | 66 | #include <i386/pmap.h> |
| 1c79356b | 67 | |
| 1c79356b | 68 | |
| 0c530ab8 A |
69 | /* |
| 70 | * The transient stack for sysenter. | |
| 71 | * At its top is a 32-bit link to the PCB in legacy mode, 64-bit otherwise. | |
| 72 | * NB: it also must be large enough to contain a interrupt stack frame | |
| 73 | * due to a single-step trace trap at system call entry. | |
| 74 | */ | |
| 75 | struct sysenter_stack master_sstk | |
| 76 | __attribute__ ((section ("__DESC, master_sstk"))) | |
| 77 | __attribute__ ((aligned (16))) = { {0}, 0 }; | |
| 78 | ||
| 0c530ab8 A |
79 | struct x86_64_tss master_ktss64 __attribute__ ((aligned (4096))) = { |
| 80 | .io_bit_map_offset = 0x0FFF, | |
| 81 | }; | |
| 0c530ab8 | 82 |