virt-host-validate: add bhyve support

Add bhyve support to virt-host-validate(1). It checks for the
essential kernel modules to be available so that user can actually
start VMs, have networking and console access.

It uses the kldnext(2)/kldstat(2) routines to retrieve modules list.
As bhyve is only available on FreeBSD and these routines were available
long before bhyve appeared, not adding any specific configure checks
for that.

Also, update tools/Makefile.am to add
virt-host-validate-$driver.[hc] to the build only if the
appropriate driver is enabled.
This commit is contained in:
Roman Bogorodskiy 2017-02-24 20:27:56 +04:00
parent 0623945c40
commit 321ff4087c
6 changed files with 148 additions and 6 deletions

View File

@ -309,6 +309,7 @@ tools/virsh-snapshot.c
tools/virsh-volume.c
tools/virsh.c
tools/virt-admin.c
tools/virt-host-validate-bhyve.c
tools/virt-host-validate-common.c
tools/virt-host-validate-lxc.c
tools/virt-host-validate-qemu.c

View File

@ -139,10 +139,34 @@ libvirt_shell_la_SOURCES = vsh.c vsh.h
virt_host_validate_SOURCES = \
virt-host-validate.c \
virt-host-validate-common.c virt-host-validate-common.h \
virt-host-validate-qemu.c virt-host-validate-qemu.h \
virt-host-validate-lxc.c virt-host-validate-lxc.h \
$(NULL)
virt-host-validate-common.c virt-host-validate-common.h
VIRT_HOST_VALIDATE_QEMU = \
virt-host-validate-qemu.c \
virt-host-validate-qemu.h
VIRT_HOST_VALIDATE_LXC = \
virt-host-validate-lxc.c \
virt-host-validate-lxc.h
VIRT_HOST_VALIDATE_BHYVE = \
virt-host-validate-bhyve.c \
virt-host-validate-bhyve.h
if WITH_QEMU
virt_host_validate_SOURCES += $(VIRT_HOST_VALIDATE_QEMU)
else ! WITH_QEMU
EXTRA_DIST += $(VIRT_HOST_VALIDATE_QEMU)
endif ! WITH_QEMU
if WITH_LXC
virt_host_validate_SOURCES += $(VIRT_HOST_VALIDATE_LXC)
else ! WITH_LXC
EXTRA_DIST += $(VIRT_HOST_VALIDATE_LXC)
endif ! WITH_LXC
if WITH_BHYVE
virt_host_validate_SOURCES += $(VIRT_HOST_VALIDATE_BHYVE)
else ! WITH_BHYVE
EXTRA_DIST += $(VIRT_HOST_VALIDATE_BHYVE)
endif ! WITH_BHYVE
virt_host_validate_LDFLAGS = \
$(AM_LDFLAGS) \

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@ -0,0 +1,78 @@
/*
* virt-host-validate-bhyve.c: Sanity check a bhyve hypervisor host
*
* Copyright (C) 2017 Roman Bogorodskiy
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*
*/
#include <config.h>
#include <sys/param.h>
#include <sys/linker.h>
#include <stdio.h>
#include "virt-host-validate-bhyve.h"
#include "virt-host-validate-common.h"
#define MODULE_STATUS(mod, err_msg, err_code) \
virHostMsgCheck("BHYVE", _("for %s module"), #mod); \
if (mod ## _loaded) { \
virHostMsgPass(); \
} else { \
virHostMsgFail(err_code, \
_("%s module is not loaded, " err_msg), \
#mod); \
ret = -1; \
} \
#define MODULE_STATUS_FAIL(mod, err_msg) \
MODULE_STATUS(mod, err_msg, VIR_HOST_VALIDATE_FAIL)
#define MODULE_STATUS_WARN(mod, err_msg) \
MODULE_STATUS(mod, err_msg, VIR_HOST_VALIDATE_WARN)
int virHostValidateBhyve(void)
{
int ret = 0;
int fileid = 0;
struct kld_file_stat stat;
bool vmm_loaded = false, if_tap_loaded = false;
bool if_bridge_loaded = false, nmdm_loaded = false;
for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) {
stat.version = sizeof(struct kld_file_stat);
if (kldstat(fileid, &stat) < 0)
continue;
if (STREQ(stat.name, "vmm.ko"))
vmm_loaded = true;
else if (STREQ(stat.name, "if_tap.ko"))
if_tap_loaded = true;
else if (STREQ(stat.name, "if_bridge.ko"))
if_bridge_loaded = true;
else if (STREQ(stat.name, "nmdm.ko"))
nmdm_loaded = true;
}
MODULE_STATUS_FAIL(vmm, "will not be able to start VMs");
MODULE_STATUS_WARN(if_tap, "networking will not work");
MODULE_STATUS_WARN(if_bridge, "bridged networking will not work");
MODULE_STATUS_WARN(nmdm, "nmdm console will not work");
return ret;
}

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@ -0,0 +1,27 @@
/*
* virt-host-validate-bhyve.h: Sanity check a bhyve hypervisor host
*
* Copyright (C) 2017 Roman Bogorodskiy
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*
*/
#ifndef __VIRT_HOST_VALIDATE_BHYVE_H__
# define __VIRT_HOST_VALIDATE_BHYVE_H__
int virHostValidateBhyve(void);
#endif /* __VIRT_HOST_VALIDATE_BHYVE_H__ */

View File

@ -36,6 +36,9 @@
#if WITH_LXC
# include "virt-host-validate-lxc.h"
#endif
#if WITH_BHYVE
# include "virt-host-validate-bhyve.h"
#endif
static void
show_help(FILE *out, const char *argv0)
@ -48,6 +51,7 @@ show_help(FILE *out, const char *argv0)
"\n"
" - qemu\n"
" - lxc\n"
" - bhyve\n"
"\n"
" Options:\n"
" -h, --help Display command line help\n"
@ -130,6 +134,14 @@ main(int argc, char **argv)
}
#endif
#if WITH_BHYVE
if (!hvname || STREQ(hvname, "bhyve")) {
usedHvname = true;
if (virHostValidateBhyve() < 0)
ret = EXIT_FAILURE;
}
#endif
if (hvname && !usedHvname) {
fprintf(stderr, _("%s: unsupported hypervisor name %s\n"),
argv[0], hvname);

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@ -12,8 +12,8 @@ This tool validates that the host is configured in a suitable
way to run libvirt hypervisor drivers. If invoked without any
arguments it will check support for all hypervisor drivers it
is aware of. Optionally it can be given a particular hypervisor
type ('qemu' or 'lxc') to restrict the checks to those relevant
for that virtualization technology
type ('qemu', 'lxc' or 'bhyve') to restrict the checks
to those relevant for that virtualization technology
=head1 OPTIONS