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1 | /* | |
2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. | |
3 | * | |
4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ | |
5 | * | |
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. | |
14 | * | |
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 | |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
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. | |
25 | * | |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ | |
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 | * "Local" descriptor table. At the moment, all tasks use the | |
61 | * same LDT. | |
62 | */ | |
63 | #include <i386/seg.h> | |
64 | ||
65 | ||
66 | struct real_descriptor master_ldt[LDTSZ] __attribute__ ((aligned (4096))) = { | |
67 | #ifdef __i386__ | |
68 | [SEL_TO_INDEX(SYSENTER_CS)] = MAKE_REAL_DESCRIPTOR( /* kernel code (sysenter) */ | |
69 | 0, | |
70 | 0xfffff, | |
71 | SZ_32|SZ_G, | |
72 | ACC_P|ACC_PL_K|ACC_CODE_R | |
73 | ), | |
74 | [SEL_TO_INDEX(SYSENTER_DS)] = MAKE_REAL_DESCRIPTOR( /* kernel data (sysenter) */ | |
75 | 0, | |
76 | 0xfffff, | |
77 | SZ_32|SZ_G, | |
78 | ACC_P|ACC_PL_K|ACC_DATA_W | |
79 | ), | |
80 | [SEL_TO_INDEX(USER_CS)] = MAKE_REAL_DESCRIPTOR( /* user code segment */ | |
81 | 0, | |
82 | 0xfffff, | |
83 | SZ_32|SZ_G, | |
84 | ACC_P|ACC_PL_U|ACC_CODE_R | |
85 | ), | |
86 | [SEL_TO_INDEX(USER_DS)] = MAKE_REAL_DESCRIPTOR( /* user data segment */ | |
87 | 0, | |
88 | 0xfffff, | |
89 | SZ_32|SZ_G, | |
90 | ACC_P|ACC_PL_U|ACC_DATA_W | |
91 | ), | |
92 | [SEL_TO_INDEX(USER64_CS)] = MAKE_REAL_DESCRIPTOR( /* user 64-bit code segment */ | |
93 | 0, | |
94 | 0xfffff, | |
95 | SZ_64|SZ_G, | |
96 | ACC_P|ACC_PL_U|ACC_CODE_R | |
97 | ), | |
98 | #endif | |
99 | [SEL_TO_INDEX(USER_CTHREAD)] = MAKE_REAL_DESCRIPTOR( /* user cthread segment */ | |
100 | 0, | |
101 | 0xfffff, | |
102 | SZ_32|SZ_G, | |
103 | ACC_P|ACC_PL_U|ACC_DATA_W | |
104 | ), | |
105 | }; |