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175f072e | 1 | /* |
175f072e KM |
2 | * Copyright (c) 1991 Regents of the University of California. |
3 | * All rights reserved. | |
4 | * | |
5 | * This code is derived from software contributed to Berkeley by | |
6 | * The Mach Operating System project at Carnegie-Mellon University. | |
7 | * | |
0e24ad83 | 8 | * %sccs.include.redist.c% |
175f072e | 9 | * |
0e24ad83 KM |
10 | * @(#)vm_prot.h 7.2 (Berkeley) %G% |
11 | * | |
12 | * | |
13 | * Copyright (c) 1987, 1990 Carnegie-Mellon University. | |
14 | * All rights reserved. | |
15 | * | |
16 | * Authors: Avadis Tevanian, Jr., Michael Wayne Young | |
17 | * | |
18 | * Permission to use, copy, modify and distribute this software and | |
19 | * its documentation is hereby granted, provided that both the copyright | |
20 | * notice and this permission notice appear in all copies of the | |
21 | * software, derivative works or modified versions, and any portions | |
22 | * thereof, and that both notices appear in supporting documentation. | |
23 | * | |
24 | * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" | |
25 | * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND | |
26 | * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. | |
27 | * | |
28 | * Carnegie Mellon requests users of this software to return to | |
29 | * | |
30 | * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU | |
31 | * School of Computer Science | |
32 | * Carnegie Mellon University | |
33 | * Pittsburgh PA 15213-3890 | |
34 | * | |
35 | * any improvements or extensions that they make and grant Carnegie the | |
36 | * rights to redistribute these changes. | |
175f072e KM |
37 | */ |
38 | ||
39 | /* | |
40 | * Virtual memory protection definitions. | |
41 | */ | |
42 | ||
43 | #ifndef _VM_PROT_ | |
44 | #define _VM_PROT_ | |
45 | ||
46 | /* | |
47 | * Types defined: | |
48 | * | |
49 | * vm_prot_t VM protection values. | |
50 | */ | |
51 | ||
52 | typedef int vm_prot_t; | |
53 | ||
54 | /* | |
55 | * Protection values, defined as bits within the vm_prot_t type | |
56 | */ | |
57 | ||
58 | #define VM_PROT_NONE ((vm_prot_t) 0x00) | |
59 | ||
60 | #define VM_PROT_READ ((vm_prot_t) 0x01) /* read permission */ | |
61 | #define VM_PROT_WRITE ((vm_prot_t) 0x02) /* write permission */ | |
62 | #define VM_PROT_EXECUTE ((vm_prot_t) 0x04) /* execute permission */ | |
63 | ||
64 | /* | |
65 | * The default protection for newly-created virtual memory | |
66 | */ | |
67 | ||
68 | #define VM_PROT_DEFAULT (VM_PROT_READ|VM_PROT_WRITE|VM_PROT_EXECUTE) | |
69 | ||
70 | /* | |
71 | * The maximum privileges possible, for parameter checking. | |
72 | */ | |
73 | ||
74 | #define VM_PROT_ALL (VM_PROT_READ|VM_PROT_WRITE|VM_PROT_EXECUTE) | |
75 | ||
76 | #endif _VM_PROT_ |