tests/qemu-iotests/256

   1 #!/usr/bin/env python3
   2 # group: rw auto quick
   3 #
   4 # Test incremental/backup across iothread contexts
   5 #
   6 # Copyright (c) 2019 John Snow for Red Hat, Inc.
   7 #
   8 # This program is free software; you can redistribute it and/or modify
   9 # it under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation; either version 2 of the License, or
  11 # (at your option) any later version.
  12 #
  13 # This program is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 #
  21 # owner=jsnow@redhat.com
  22
  23 import os
  24 import iotests
  25 from iotests import log
  26
  27 iotests.verify_virtio_scsi_pci_or_ccw()
  28
  29 iotests.script_initialize(supported_fmts=['qcow2'])
  30 size = 64 * 1024 * 1024
  31
  32 with iotests.FilePath('img0') as img0_path, \
  33      iotests.FilePath('img1') as img1_path, \
  34      iotests.FilePath('img0-full') as img0_full_path, \
  35      iotests.FilePath('img1-full') as img1_full_path, \
  36      iotests.FilePath('img0-incr') as img0_incr_path, \
  37      iotests.FilePath('img1-incr') as img1_incr_path, \
  38      iotests.VM() as vm:
  39
  40     def create_target(filepath, name, size):
  41         basename = os.path.basename(filepath)
  42         nodename = "file_{}".format(basename)
  43         log(vm.cmd('blockdev-create', job_id='job1',
  44                    options={
  45                        'driver': 'file',
  46                        'filename': filepath,
  47                        'size': 0,
  48                    }))
  49         vm.run_job('job1')
  50         log(vm.cmd('blockdev-add', driver='file',
  51                    node_name=nodename, filename=filepath))
  52         log(vm.cmd('blockdev-create', job_id='job2',
  53                    options={
  54                        'driver': iotests.imgfmt,
  55                        'file': nodename,
  56                        'size': size,
  57                    }))
  58         vm.run_job('job2')
  59         log(vm.cmd('blockdev-add', driver=iotests.imgfmt,
  60                    node_name=name,
  61                    file=nodename))
  62
  63     log('--- Preparing images & VM ---\n')
  64     vm.add_object('iothread,id=iothread0')
  65     vm.add_object('iothread,id=iothread1')
  66     vm.add_device('virtio-scsi,id=scsi0,iothread=iothread0')
  67     vm.add_device('virtio-scsi,id=scsi1,iothread=iothread1')
  68     iotests.qemu_img_create('-f', iotests.imgfmt, img0_path, str(size))
  69     iotests.qemu_img_create('-f', iotests.imgfmt, img1_path, str(size))
  70     vm.add_drive(img0_path, interface='none')
  71     vm.add_device('scsi-hd,id=device0,drive=drive0,bus=scsi0.0')
  72     vm.add_drive(img1_path, interface='none')
  73     vm.add_device('scsi-hd,id=device1,drive=drive1,bus=scsi1.0')
  74
  75     log('--- Starting VM ---\n')
  76     vm.launch()
  77
  78     log('--- Create Targets & Full Backups ---\n')
  79     create_target(img0_full_path, 'img0-full', size)
  80     create_target(img1_full_path, 'img1-full', size)
  81     ret = vm.qmp_log('transaction', indent=2, actions=[
  82         { 'type': 'block-dirty-bitmap-add',
  83           'data': { 'node': 'drive0', 'name': 'bitmap0' }},
  84         { 'type': 'block-dirty-bitmap-add',
  85           'data': { 'node': 'drive1', 'name': 'bitmap1' }},
  86         { 'type': 'blockdev-backup',
  87           'data': { 'device': 'drive0',
  88                     'target': 'img0-full',
  89                     'sync': 'full',
  90                     'job-id': 'j0' }},
  91         { 'type': 'blockdev-backup',
  92           'data': { 'device': 'drive1',
  93                     'target': 'img1-full',
  94                     'sync': 'full',
  95                     'job-id': 'j1' }}
  96     ])
  97     if "error" in ret:
  98         raise Exception(ret['error']['desc'])
  99     vm.run_job('j0', auto_dismiss=True)
 100     vm.run_job('j1', auto_dismiss=True)
 101
 102     log('\n--- Create Targets & Incremental Backups ---\n')
 103     create_target(img0_incr_path, 'img0-incr', size)
 104     create_target(img1_incr_path, 'img1-incr', size)
 105     ret = vm.qmp_log('transaction', indent=2, actions=[
 106         { 'type': 'blockdev-backup',
 107           'data': { 'device': 'drive0',
 108                     'target': 'img0-incr',
 109                     'sync': 'incremental',
 110                     'bitmap': 'bitmap0',
 111                     'job-id': 'j2' }},
 112         { 'type': 'blockdev-backup',
 113           'data': { 'device': 'drive1',
 114                     'target': 'img1-incr',
 115                     'sync': 'incremental',
 116                     'bitmap': 'bitmap1',
 117                     'job-id': 'j3' }}
 118     ])
 119     if "error" in ret:
 120         raise Exception(ret['error']['desc'])
 121     vm.run_job('j2', auto_dismiss=True)
 122     vm.run_job('j3', auto_dismiss=True)
 123
 124     log('\n--- Done ---')
 125     vm.shutdown()