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1.1 root 1: /*
2: * Mach Operating System
3: * Copyright (c) 1993,1991,1990 Carnegie Mellon University
4: * All Rights Reserved.
5: *
6: * Permission to use, copy, modify and distribute this software and its
7: * documentation is hereby granted, provided that both the copyright
8: * notice and this permission notice appear in all copies of the
9: * software, derivative works or modified versions, and any portions
10: * thereof, and that both notices appear in supporting documentation.
11: *
12: * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
13: * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
14: * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
15: *
16: * Carnegie Mellon requests users of this software to return to
17: *
18: * Software Distribution Coordinator or [email protected]
19: * School of Computer Science
20: * Carnegie Mellon University
21: * Pittsburgh PA 15213-3890
22: *
23: * any improvements or extensions that they make and grant Carnegie Mellon
24: * the rights to redistribute these changes.
25: */
26: /*
27: * Copyright (c) 1982, 1986, 1988 Regents of the University of California.
28: * All rights reserved.
29: *
30: * Redistribution and use in source and binary forms, with or without
31: * modification, are permitted provided that the following conditions
32: * are met:
33: * 1. Redistributions of source code must retain the above copyright
34: * notice, this list of conditions and the following disclaimer.
35: * 2. Redistributions in binary form must reproduce the above copyright
36: * notice, this list of conditions and the following disclaimer in the
37: * documentation and/or other materials provided with the distribution.
38: * 4. The name of the Laboratory may not be used to endorse or promote
39: * products derived from this software without specific prior written
40: * permission.
41: *
42: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
43: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
44: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
45: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
46: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
47: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
48: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
49: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
50: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
51: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52: * SUCH DAMAGE.
53: *
54: * @(#)reboot.h 7.5 (Berkeley) 6/27/88
55: */
56: /*
57: * Warning: The contents of this file are deprecated;
58: * it should only ever be used for BSD and Mach 3 compatibility.
59: * As the above copyright notice suggests, this file originated in BSD;
60: * it is mostly the same, except the flags after RB_DFLTROOT
61: * have diverged from BSD.
62: */
63: #ifndef _MACH_SYS_REBOOT_H_
64: #define _MACH_SYS_REBOOT_H_
65:
66: /*
67: * Arguments to reboot system call.
68: * These are converted to switches, and passed to startup program,
69: * and on to init.
70: */
71: #define RB_AUTOBOOT 0 /* flags for system auto-booting itself */
72:
73: #define RB_ASKNAME 0x01 /* -a: ask for file name to reboot from */
74: #define RB_SINGLE 0x02 /* -s: reboot to single user only */
75: #define RB_KDB 0x04 /* -d: kernel debugger symbols loaded */
76: #define RB_HALT 0x08 /* -h: enter KDB at bootup */
77: /* for host_reboot(): don't reboot,
78: just halt */
79: #define RB_INITNAME 0x10 /* -i: name given for /etc/init (unused) */
80: #define RB_DFLTROOT 0x20 /* use compiled-in rootdev */
81: #define RB_NOBOOTRC 0x20 /* -b: don't run /etc/rc.boot */
82: #define RB_ALTBOOT 0x40 /* use /boot.old vs /boot */
83: #define RB_UNIPROC 0x80 /* -u: start only one processor */
84:
85: #define RB_SHIFT 8 /* second byte is for ux */
86:
87: #define RB_DEBUGGER 0x1000 /* for host_reboot(): enter kernel
88: debugger from user level */
89:
90: /* Corresponding BSD definitions, where they disagree with the Mach flags. */
91: #define BSD_RB_NOSYNC 0x04 /* dont sync before reboot */
92: #define BSD_RB_KDB 0x40 /* give control to kernel debugger */
93: #define BSD_RB_RDONLY 0x80 /* mount root fs read-only */
94: #define BSD_RB_DUMP 0x100 /* dump kernel memory before reboot */
95: #define BSD_RB_MINIROOT 0x200 /* mini-root present in memory at boot time */
96: #define BSD_RB_CONFIG 0x400 /* invoke user configuration routing */
97:
98:
99: /*
100: * Constants for converting boot-style device number to type,
101: * adaptor (uba, mba, etc), unit number and partition number.
102: * Type (== major device number) is in the low byte
103: * for backward compatibility. Except for that of the "magic
104: * number", each mask applies to the shifted value.
105: * Format:
106: * (4) (4) (4) (4) (8) (8)
107: * --------------------------------
108: * |MA | AD| CT| UN| PART | TYPE |
109: * --------------------------------
110: */
111: #define B_ADAPTORSHIFT 24
112: #define B_ADAPTORMASK 0x0f
113: #define B_ADAPTOR(val) (((val) >> B_ADAPTORSHIFT) & B_ADAPTORMASK)
114: #define B_CONTROLLERSHIFT 20
115: #define B_CONTROLLERMASK 0xf
116: #define B_CONTROLLER(val) (((val)>>B_CONTROLLERSHIFT) & B_CONTROLLERMASK)
117: #define B_UNITSHIFT 16
118: #define B_UNITMASK 0xf
119: #define B_UNIT(val) (((val) >> B_UNITSHIFT) & B_UNITMASK)
120: #define B_PARTITIONSHIFT 8
121: #define B_PARTITIONMASK 0xff
122: #define B_PARTITION(val) (((val) >> B_PARTITIONSHIFT) & B_PARTITIONMASK)
123: #define B_TYPESHIFT 0
124: #define B_TYPEMASK 0xff
125: #define B_TYPE(val) (((val) >> B_TYPESHIFT) & B_TYPEMASK)
126:
127: #define B_MAGICMASK ((u_int)0xf0000000U)
128: #define B_DEVMAGIC ((u_int)0xa0000000U)
129:
130: #define MAKEBOOTDEV(type, adaptor, controller, unit, partition) \
131: (((type) << B_TYPESHIFT) | ((adaptor) << B_ADAPTORSHIFT) | \
132: ((controller) << B_CONTROLLERSHIFT) | ((unit) << B_UNITSHIFT) | \
133: ((partition) << B_PARTITIONSHIFT) | B_DEVMAGIC)
134:
135: #endif /* _MACH_SYS_REBOOT_H_ */
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