xref: /titanic_41/usr/src/uts/sun4v/sys/ldoms.h (revision 3173664e967186de0a5f0e61548c25996fa6d37f)
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 flags that indicate what domaining features are
50  * available, if any. The value is set at boot time based on
51  * the value of the 'domaining-enabled' property in the MD
52  * and the global override flag 'force_domaining_disabled'.
53  * Updates to this variable after boot are not supported.
54  */
55 extern uint_t domaining_capabilities;
56 
57 /* values for domaining_capabilities word (above) */
58 #define	DOMAINING_SUPPORTED	0x1
59 #define	DOMAINING_ENABLED	0x2
60 
61 
62 #ifdef	__cplusplus
63 }
64 #endif
65 
66 #endif	/* _LDOMS_H */
67