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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* Copyright (c) 2012 by Delphix. All rights reserved.
* Copyright 2020 Joshua M. Clulow <josh@sysmgr.org>
*/
#include <sys/zio.h>
#include <sys/spa.h>
#include <sys/sunddi.h>
#include <sys/x86_archext.h>
extern int zfs_deadman_enabled;
char *
spa_get_bootprop(const char *propname)
{
char *value;
if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(),
DDI_PROP_DONTPASS, (char *)propname, &value) != DDI_SUCCESS) {
return (NULL);
}
return (value);
}
void
spa_free_bootprop(char *value)
{
if (value == NULL) {
return;
}
ddi_prop_free(value);
}
void
spa_arch_init(void)
{
/*
* Configure the default settings for the zfs deadman unless
* overriden by /etc/system.
*/
if (zfs_deadman_enabled == -1) {
/*
* Disable the zfs deadman logic on VMware deployments.
*/
if (get_hwenv() == HW_VMWARE)
zfs_deadman_enabled = 0;
else
zfs_deadman_enabled = 1;
}
}
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