mirror_qemu/tests/qemu-iotests/tests/iothreads-stream

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2.8 KiB
Python
Executable File

#!/usr/bin/env python3
# group: rw quick auto
#
# Copyright (C) 2023 Red Hat, Inc.
#
# 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/>.
#
# Creator/Owner: Kevin Wolf <kwolf@redhat.com>
import asyncio
import iotests
iotests.script_initialize(supported_fmts=['qcow2'],
supported_platforms=['linux'])
iotests.verify_virtio_scsi_pci_or_ccw()
with iotests.FilePath('disk1.img') as base1_path, \
iotests.FilePath('disk1-snap.img') as snap1_path, \
iotests.FilePath('disk2.img') as base2_path, \
iotests.FilePath('disk2-snap.img') as snap2_path, \
iotests.VM() as vm:
img_size = '10M'
# Only one iothread for both disks
vm.add_object('iothread,id=iothread0')
vm.add_device('virtio-scsi,iothread=iothread0')
iotests.log('Preparing disks...')
for i, base_path, snap_path in ((0, base1_path, snap1_path),
(1, base2_path, snap2_path)):
iotests.qemu_img_create('-f', iotests.imgfmt, base_path, img_size)
iotests.qemu_img_create('-f', iotests.imgfmt, '-b', base_path,
'-F', iotests.imgfmt, snap_path)
iotests.qemu_io_log('-c', f'write 0 {img_size}', base_path)
vm.add_blockdev(f'file,node-name=disk{i}-base-file,'
f'filename={base_path}')
vm.add_blockdev(f'qcow2,node-name=disk{i}-base,file=disk{i}-base-file')
vm.add_blockdev(f'file,node-name=disk{i}-file,filename={snap_path}')
vm.add_blockdev(f'qcow2,node-name=disk{i},file=disk{i}-file,'
f'backing=disk{i}-base')
vm.add_device(f'scsi-hd,drive=disk{i}')
iotests.log('Launching VM...')
vm.launch()
iotests.log('Starting stream jobs...')
iotests.log(vm.qmp('block-stream', device='disk0', job_id='job0'))
iotests.log(vm.qmp('block-stream', device='disk1', job_id='job1'))
finished = 0
while True:
try:
ev = vm.event_wait('JOB_STATUS_CHANGE', timeout=0.1)
if ev is not None and ev['data']['status'] == 'null':
finished += 1
# The test is done once both jobs are gone
if finished == 2:
break
except asyncio.TimeoutError:
pass
vm.cmd('query-jobs')