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 2009 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27/*
28 * Copyright (c) 2012 by Delphix. All rights reserved.
29 * Copyright 2020 Joshua M. Clulow <josh@sysmgr.org>
30 */
31
32#include <sys/zio.h>
33#include <sys/spa.h>
34#include <sys/bootconf.h>
35
36extern int zfs_deadman_enabled;
37
38char *
39spa_get_bootprop(const char *propname)
40{
41	int proplen;
42	char *value;
43
44	proplen = BOP_GETPROPLEN(bootops, propname);
45	if (proplen <= 0)
46		return (NULL);
47
48	value = kmem_zalloc(proplen, KM_SLEEP);
49	if (BOP_GETPROP(bootops, propname, value) == -1) {
50		kmem_free(value, proplen);
51		return (NULL);
52	}
53
54	return (value);
55}
56
57void
58spa_free_bootprop(char *propval)
59{
60	if (propval == NULL) {
61		return;
62	}
63
64	kmem_free(propval, strlen(propval) + 1);
65}
66
67void
68spa_arch_init(void)
69{
70	/*
71	 * The deadman is disabled by default on sparc.
72	 */
73	if (zfs_deadman_enabled == -1)
74		zfs_deadman_enabled = 0;
75}
76