xref: /titanic_50/usr/src/uts/sun4v/sys/ldoms.h (revision df4cb6e0bcfc660e38e1e96ccd7b794c0466228a)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef	_LDOMS_H
28 #define	_LDOMS_H
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 #ifdef	__cplusplus
33 extern "C" {
34 #endif
35 
36 #include <sys/param.h>	/* for MAXHOSTNAMELEN */
37 
38 /*
39  * Global LDoms definitions.
40  */
41 
42 /* Maximum number of logical domains supported */
43 #define	LDOMS_MAX_DOMAINS	32
44 
45 /* maximum number of characters in the logical domain name */
46 #define	LDOMS_MAX_NAME_LEN	MAXHOSTNAMELEN
47 
48 /*
49  * Global flag that indicates whether domaining features are
50  * available. The value is set at boot time based on the value
51  * of the 'domaining-enabled' property in the MD.  Updates to
52  * this variable after boot are not supported.
53  */
54 extern uint_t domaining_enabled;
55 
56 
57 #ifdef	__cplusplus
58 }
59 #endif
60 
61 #endif	/* _LDOMS_H */
62