Merge tag 'qemu-macppc-20230206' of https://github.com/mcayland/qemu into staging
[qemu.git] / tests / qemu-iotests / 255
blob88b29d64b44e46af790b082f79034ec67579a7e7
1 #!/usr/bin/env python3
2 # group: rw quick
4 # Test commit job graph modifications while requests are active
6 # Copyright (C) 2019 Red Hat, Inc.
8 # Creator/Owner: Kevin Wolf <kwolf@redhat.com>
10 # This program is free software; you can redistribute it and/or modify
11 # it under the terms of the GNU General Public License as published by
12 # the Free Software Foundation; either version 2 of the License, or
13 # (at your option) any later version.
15 # This program is distributed in the hope that it will be useful,
16 # but WITHOUT ANY WARRANTY; without even the implied warranty of
17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18 # GNU General Public License for more details.
20 # You should have received a copy of the GNU General Public License
21 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
24 import iotests
25 from iotests import imgfmt
27 iotests.script_initialize(supported_fmts=['qcow2'])
29 iotests.log('Finishing a commit job with background reads')
30 iotests.log('============================================')
31 iotests.log('')
33 with iotests.FilePath('t.qcow2') as disk_path, \
34      iotests.FilePath('t.qcow2.mid') as mid_path, \
35      iotests.FilePath('t.qcow2.base') as base_path, \
36      iotests.VM() as vm:
38     iotests.log("=== Create backing chain and start VM ===")
39     iotests.log("")
41     size = 128 * 1024 * 1024
42     size_str = str(size)
44     iotests.create_image(base_path, size)
45     iotests.qemu_img_create('-f', iotests.imgfmt, mid_path, size_str)
46     iotests.qemu_img_create('-f', iotests.imgfmt, disk_path, size_str)
48     # Create a backing chain like this:
49     # base <- [throttled: bps-read=4096] <- mid <- overlay
51     vm.add_object('throttle-group,x-bps-read=4096,id=throttle0')
52     vm.add_blockdev('file,filename=%s,node-name=base' % (base_path))
53     vm.add_blockdev('throttle,throttle-group=throttle0,file=base,node-name=throttled')
54     vm.add_blockdev('file,filename=%s,node-name=mid-file' % (mid_path))
55     vm.add_blockdev('qcow2,file=mid-file,node-name=mid,backing=throttled')
56     vm.add_drive_raw('if=none,id=overlay,driver=qcow2,file=%s,backing=mid' % (disk_path))
58     vm.launch()
60     iotests.log("=== Start background read requests ===")
61     iotests.log("")
63     def start_requests():
64         vm.hmp_qemu_io('overlay', 'aio_read 0 4k')
65         vm.hmp_qemu_io('overlay', 'aio_read 0 4k')
67     start_requests()
69     iotests.log("=== Run a commit job ===")
70     iotests.log("")
72     result = vm.qmp_log('block-commit', job_id='job0', auto_finalize=False,
73                         device='overlay', top_node='mid')
75     vm.run_job('job0', auto_finalize=False, pre_finalize=start_requests,
76                 auto_dismiss=True)
78     vm.shutdown()
80 iotests.log('')
81 iotests.log('Closing the VM while a job is being cancelled')
82 iotests.log('=============================================')
83 iotests.log('')
85 with iotests.FilePath('src.qcow2') as src_path, \
86      iotests.FilePath('dst.qcow2') as dst_path, \
87      iotests.VM() as vm:
89     iotests.log('=== Create images and start VM ===')
90     iotests.log('')
92     size = 128 * 1024 * 1024
93     size_str = str(size)
95     iotests.qemu_img_create('-f', iotests.imgfmt, src_path, size_str)
96     iotests.qemu_img_create('-f', iotests.imgfmt, dst_path, size_str)
98     iotests.qemu_io_log('-f', iotests.imgfmt, '-c', 'write 0 1M', src_path),
100     vm.add_object('throttle-group,x-bps-read=4096,id=throttle0')
102     vm.add_blockdev('file,node-name=src-file,filename=%s' % (src_path))
103     vm.add_blockdev('%s,node-name=src,file=src-file' % (iotests.imgfmt))
105     vm.add_blockdev('file,node-name=dst-file,filename=%s' % (dst_path))
106     vm.add_blockdev('%s,node-name=dst,file=dst-file' % (iotests.imgfmt))
108     vm.add_blockdev('throttle,node-name=src-throttled,' +
109                     'throttle-group=throttle0,file=src')
111     vm.add_device('virtio-blk,drive=src-throttled')
113     vm.launch()
115     iotests.log('=== Start a mirror job ===')
116     iotests.log('')
118     vm.qmp_log('blockdev-mirror', job_id='job0', device='src-throttled',
119                                   target='dst', sync='full')
121     vm.qmp_log('block-job-cancel', device='job0')
122     vm.qmp_log('quit')
124     vm.shutdown()