304 (1820B)
1 #!/usr/bin/env python3 2 # group: rw quick 3 # 4 # Tests dirty-bitmap backup with unaligned bitmap granularity 5 # 6 # Copyright (c) 2020 Proxmox Server Solutions 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=s.reiter@proxmox.com 22 23 import iotests 24 from iotests import qemu_img_create, qemu_img_log, file_path 25 26 iotests.script_initialize(supported_fmts=['qcow2'], 27 supported_protocols=['file']) 28 29 test_img = file_path('test.qcow2') 30 target_img = file_path('target.qcow2') 31 32 # unaligned by one byte 33 image_len = 4097 34 bitmap_granularity = 4096 35 36 qemu_img_create('-f', iotests.imgfmt, test_img, str(image_len)) 37 38 # create VM 39 vm = iotests.VM().add_drive(test_img) 40 vm.launch() 41 42 # write to the entire image 43 vm.hmp_qemu_io('drive0', 'write -P0x16 0 4096'); 44 vm.hmp_qemu_io('drive0', 'write -P0x17 4096 1'); 45 46 # do backup and wait for completion 47 vm.qmp('drive-backup', **{ 48 'device': 'drive0', 49 'sync': 'full', 50 'target': target_img 51 }) 52 53 event = vm.event_wait(name='BLOCK_JOB_COMPLETED', 54 match={'data': {'device': 'drive0'}}, 55 timeout=5.0) 56 57 # shutdown to sync images 58 vm.shutdown() 59 60 # backup succeeded, check if image is correct 61 qemu_img_log('compare', test_img, target_img)