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Diffstat (limited to 'include/sys/reboot.h')
| -rw-r--r-- | include/sys/reboot.h | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/include/sys/reboot.h b/include/sys/reboot.h new file mode 100644 index 0000000..d74ed98 --- /dev/null +++ b/include/sys/reboot.h @@ -0,0 +1,123 @@ +/* + * Mach Operating System + * Copyright (c) 1993,1991,1990 Carnegie Mellon University + * All Rights Reserved. + * + * Permission to use, copy, modify and distribute this software and its + * documentation is hereby granted, provided that both the copyright + * notice and this permission notice appear in all copies of the + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation. + * + * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR + * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * Carnegie Mellon requests users of this software to return to + * + * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU + * School of Computer Science + * Carnegie Mellon University + * Pittsburgh PA 15213-3890 + * + * any improvements or extensions that they make and grant Carnegie Mellon + * the rights to redistribute these changes. + */ +/* + * Copyright (c) 1982, 1986, 1988 Regents of the University of California. + * All rights reserved. + * + * Redistribution and use in source and binary forms are permitted + * provided that the above copyright notice and this paragraph are + * duplicated in all such forms and that any documentation, + * advertising materials, and other materials related to such + * distribution and use acknowledge that the software was developed + * by the University of California, Berkeley. The name of the + * University may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED + * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. + * + * @(#)reboot.h 7.5 (Berkeley) 6/27/88 + */ +/* + * Warning: The contents of this file are deprecated; + * it should only ever be used for BSD and Mach 3 compatibility. + * As the above copyright notice suggests, this file originated in BSD; + * it is mostly the same, except the flags after RB_DFLTROOT + * have diverged from BSD. + */ +#ifndef _MACH_SYS_REBOOT_H_ +#define _MACH_SYS_REBOOT_H_ + +/* + * Arguments to reboot system call. + * These are converted to switches, and passed to startup program, + * and on to init. + */ +#define RB_AUTOBOOT 0 /* flags for system auto-booting itself */ + +#define RB_ASKNAME 0x01 /* -a: ask for file name to reboot from */ +#define RB_SINGLE 0x02 /* -s: reboot to single user only */ +#define RB_KDB 0x04 /* -d: kernel debugger symbols loaded */ +#define RB_HALT 0x08 /* -h: enter KDB at bootup */ + /* for host_reboot(): don't reboot, + just halt */ +#define RB_INITNAME 0x10 /* -i: name given for /etc/init (unused) */ +#define RB_DFLTROOT 0x20 /* use compiled-in rootdev */ +#define RB_NOBOOTRC 0x20 /* -b: don't run /etc/rc.boot */ +#define RB_ALTBOOT 0x40 /* use /boot.old vs /boot */ +#define RB_UNIPROC 0x80 /* -u: start only one processor */ + +#define RB_SHIFT 8 /* second byte is for ux */ + +#define RB_DEBUGGER 0x1000 /* for host_reboot(): enter kernel + debugger from user level */ + +/* Corresponding BSD definitions, where they disagree with the Mach flags. */ +#define BSD_RB_NOSYNC 0x04 /* dont sync before reboot */ +#define BSD_RB_KDB 0x40 /* give control to kernel debugger */ +#define BSD_RB_RDONLY 0x80 /* mount root fs read-only */ +#define BSD_RB_DUMP 0x100 /* dump kernel memory before reboot */ +#define BSD_RB_MINIROOT 0x200 /* mini-root present in memory at boot time */ +#define BSD_RB_CONFIG 0x400 /* invoke user configuration routing */ + + +/* + * Constants for converting boot-style device number to type, + * adaptor (uba, mba, etc), unit number and partition number. + * Type (== major device number) is in the low byte + * for backward compatibility. Except for that of the "magic + * number", each mask applies to the shifted value. + * Format: + * (4) (4) (4) (4) (8) (8) + * -------------------------------- + * |MA | AD| CT| UN| PART | TYPE | + * -------------------------------- + */ +#define B_ADAPTORSHIFT 24 +#define B_ADAPTORMASK 0x0f +#define B_ADAPTOR(val) (((val) >> B_ADAPTORSHIFT) & B_ADAPTORMASK) +#define B_CONTROLLERSHIFT 20 +#define B_CONTROLLERMASK 0xf +#define B_CONTROLLER(val) (((val)>>B_CONTROLLERSHIFT) & B_CONTROLLERMASK) +#define B_UNITSHIFT 16 +#define B_UNITMASK 0xf +#define B_UNIT(val) (((val) >> B_UNITSHIFT) & B_UNITMASK) +#define B_PARTITIONSHIFT 8 +#define B_PARTITIONMASK 0xff +#define B_PARTITION(val) (((val) >> B_PARTITIONSHIFT) & B_PARTITIONMASK) +#define B_TYPESHIFT 0 +#define B_TYPEMASK 0xff +#define B_TYPE(val) (((val) >> B_TYPESHIFT) & B_TYPEMASK) + +#define B_MAGICMASK ((u_int)0xf0000000U) +#define B_DEVMAGIC ((u_int)0xa0000000U) + +#define MAKEBOOTDEV(type, adaptor, controller, unit, partition) \ + (((type) << B_TYPESHIFT) | ((adaptor) << B_ADAPTORSHIFT) | \ + ((controller) << B_CONTROLLERSHIFT) | ((unit) << B_UNITSHIFT) | \ + ((partition) << B_PARTITIONSHIFT) | B_DEVMAGIC) + +#endif /* _MACH_SYS_REBOOT_H_ */ |