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#!/usr/bin/env python
#
# Test virtio-scsi and virtio-blk queue settings for all machine types
#
# Copyright (c) 2019 Virtuozzo International GmbH
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
import sys
import os
import re
import logging
sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..', 'python'))
from qemu.machine import QEMUMachine
from avocado_qemu import Test
from avocado import skip
#list of machine types and virtqueue properties to test
VIRTIO_SCSI_PROPS = {'seg_max_adjust': 'seg_max_adjust'}
VIRTIO_BLK_PROPS = {'seg_max_adjust': 'seg-max-adjust'}
DEV_TYPES = {'virtio-scsi-pci': VIRTIO_SCSI_PROPS,
'virtio-blk-pci': VIRTIO_BLK_PROPS}
VM_DEV_PARAMS = {'virtio-scsi-pci': ['-device', 'virtio-scsi-pci,id=scsi0'],
'virtio-blk-pci': ['-device',
'virtio-blk-pci,id=scsi0,drive=drive0',
'-drive',
'driver=null-co,id=drive0,if=none']}
class VirtioMaxSegSettingsCheck(Test):
@staticmethod
def make_pattern(props):
pattern_items = ['{0} = \w+'.format(prop) for prop in props]
return '|'.join(pattern_items)
def query_virtqueue(self, vm, dev_type_name):
query_ok = False
error = None
props = None
output = vm.command('human-monitor-command',
command_line = 'info qtree')
props_list = DEV_TYPES[dev_type_name].values();
pattern = self.make_pattern(props_list)
res = re.findall(pattern, output)
if len(res) != len(props_list):
props_list = set(props_list)
res = set(res)
not_found = props_list.difference(res)
not_found = ', '.join(not_found)
error = '({0}): The following properties not found: {1}'\
.format(dev_type_name, not_found)
else:
query_ok = True
props = dict()
for prop in res:
p = prop.split(' = ')
props[p[0]] = p[1]
return query_ok, props, error
def check_mt(self, mt, dev_type_name):
mt['device'] = dev_type_name # Only for the debug() call.
logger = logging.getLogger('machine')
logger.debug(mt)
with QEMUMachine(self.qemu_bin) as vm:
vm.set_machine(mt["name"])
vm.add_args('-nodefaults')
for s in VM_DEV_PARAMS[dev_type_name]:
vm.add_args(s)
try:
vm.launch()
query_ok, props, error = self.query_virtqueue(vm, dev_type_name)
except:
query_ok = False
error = sys.exc_info()[0]
if not query_ok:
self.fail('machine type {0}: {1}'.format(mt['name'], error))
for prop_name, prop_val in props.items():
expected_val = mt[prop_name]
self.assertEqual(expected_val, prop_val)
@staticmethod
def seg_max_adjust_enabled(mt):
# machine types >= 5.0 should have seg_max_adjust = true
# others seg_max_adjust = false
mt = mt.split("-")
# machine types with one line name and name like pc-x.x
if len(mt) <= 2:
return False
# machine types like pc-<chip_name>-x.x[.x]
ver = mt[2]
ver = ver.split(".");
# versions >= 5.0 goes with seg_max_adjust enabled
major = int(ver[0])
if major >= 5:
return True
return False
@skip("break multi-arch CI")
def test_machine_types(self):
# collect all machine types except 'none', 'isapc', 'microvm'
with QEMUMachine(self.qemu_bin) as vm:
vm.launch()
machines = [m['name'] for m in vm.command('query-machines')]
vm.shutdown()
machines.remove('none')
machines.remove('isapc')
machines.remove('microvm')
for dev_type in DEV_TYPES:
# create the list of machine types and their parameters.
mtypes = list()
for m in machines:
if self.seg_max_adjust_enabled(m):
enabled = 'true'
else:
enabled = 'false'
mtypes.append({'name': m,
DEV_TYPES[dev_type]['seg_max_adjust']: enabled})
# test each machine type for a device type
for mt in mtypes:
self.check_mt(mt, dev_type)
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