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Source at commit 1084 created 13 years 1 month ago. By meklort, BiosDisk Read() function working. Write() complete but untested | |
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1 | /*␊ |
2 | * Copyright (c) 2000-2002 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) 1991,1990,1989,1988,1987 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 | *␉File:␉mach/vm_prot.h␊ |
60 | *␉Author:␉Avadis Tevanian, Jr., Michael Wayne Young␊ |
61 | *␊ |
62 | *␉Virtual memory protection definitions.␊ |
63 | *␊ |
64 | */␊ |
65 | ␊ |
66 | #ifndef␉_MACH_VM_PROT_H_␊ |
67 | #define␉_MACH_VM_PROT_H_␊ |
68 | ␊ |
69 | /*␊ |
70 | *␉Types defined:␊ |
71 | *␊ |
72 | *␉vm_prot_t␉␉VM protection values.␊ |
73 | */␊ |
74 | ␊ |
75 | typedef int␉␉vm_prot_t;␊ |
76 | ␊ |
77 | /*␊ |
78 | *␉Protection values, defined as bits within the vm_prot_t type␊ |
79 | */␊ |
80 | ␊ |
81 | #define␉VM_PROT_NONE␉((vm_prot_t) 0x00)␊ |
82 | ␊ |
83 | #define VM_PROT_READ␉((vm_prot_t) 0x01)␉/* read permission */␊ |
84 | #define VM_PROT_WRITE␉((vm_prot_t) 0x02)␉/* write permission */␊ |
85 | #define VM_PROT_EXECUTE␉((vm_prot_t) 0x04)␉/* execute permission */␊ |
86 | ␊ |
87 | /*␊ |
88 | *␉The default protection for newly-created virtual memory␊ |
89 | */␊ |
90 | ␊ |
91 | #define VM_PROT_DEFAULT␉(VM_PROT_READ|VM_PROT_WRITE)␊ |
92 | ␊ |
93 | /*␊ |
94 | *␉The maximum privileges possible, for parameter checking.␊ |
95 | */␊ |
96 | ␊ |
97 | #define VM_PROT_ALL␉(VM_PROT_READ|VM_PROT_WRITE|VM_PROT_EXECUTE)␊ |
98 | ␊ |
99 | /*␊ |
100 | *␉An invalid protection value.␊ |
101 | *␉Used only by memory_object_lock_request to indicate no change␊ |
102 | *␉to page locks. Using -1 here is a bad idea because it␊ |
103 | *␉looks like VM_PROT_ALL and then some.␊ |
104 | */␊ |
105 | ␊ |
106 | #define VM_PROT_NO_CHANGE␉((vm_prot_t) 0x08)␊ |
107 | ␊ |
108 | /* ␊ |
109 | * When a caller finds that he cannot obtain write permission on a␊ |
110 | * mapped entry, the following flag can be used. The entry will␊ |
111 | * be made "needs copy" effectively copying the object (using COW),␊ |
112 | * and write permission will be added to the maximum protections␊ |
113 | * for the associated entry. ␊ |
114 | */ ␊ |
115 | ␊ |
116 | #define VM_PROT_COPY ((vm_prot_t) 0x10)␊ |
117 | ␊ |
118 | ␊ |
119 | /*␊ |
120 | *␉Another invalid protection value.␊ |
121 | *␉Used only by memory_object_data_request upon an object␊ |
122 | *␉which has specified a copy_call copy strategy. It is used␊ |
123 | *␉when the kernel wants a page belonging to a copy of the␊ |
124 | *␉object, and is only asking the object as a result of␊ |
125 | *␉following a shadow chain. This solves the race between pages␊ |
126 | *␉being pushed up by the memory manager and the kernel␊ |
127 | *␉walking down the shadow chain.␊ |
128 | */␊ |
129 | ␊ |
130 | #define VM_PROT_WANTS_COPY␉((vm_prot_t) 0x10)␊ |
131 | ␊ |
132 | ␊ |
133 | /*␊ |
134 | *␉The caller wants this memory region treated as if it had a valid␊ |
135 | *␉code signature.␊ |
136 | */␊ |
137 | ␊ |
138 | #define VM_PROT_TRUSTED␉␉((vm_prot_t) 0x20)␊ |
139 | ␊ |
140 | ␊ |
141 | #endif␉/* _MACH_VM_PROT_H_ */␊ |
142 |