1#!/usr/bin/env python3 2# 3# Tests dirty-bitmap backup with unaligned bitmap granularity 4# 5# Copyright (c) 2020 Proxmox Server Solutions 6# 7# This program is free software; you can redistribute it and/or modify 8# it under the terms of the GNU General Public License as published by 9# the Free Software Foundation; either version 2 of the License, or 10# (at your option) any later version. 11# 12# This program is distributed in the hope that it will be useful, 13# but WITHOUT ANY WARRANTY; without even the implied warranty of 14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15# GNU General Public License for more details. 16# 17# You should have received a copy of the GNU General Public License 18# along with this program. If not, see <http://www.gnu.org/licenses/>. 19# 20# owner=s.reiter@proxmox.com 21 22import iotests 23from iotests import qemu_img_create, qemu_img_log, file_path 24 25iotests.script_initialize(supported_fmts=['qcow2'], 26 supported_protocols=['file']) 27 28test_img = file_path('test.qcow2') 29target_img = file_path('target.qcow2') 30 31# unaligned by one byte 32image_len = 4097 33bitmap_granularity = 4096 34 35qemu_img_create('-f', iotests.imgfmt, test_img, str(image_len)) 36 37# create VM 38vm = iotests.VM().add_drive(test_img) 39vm.launch() 40 41# write to the entire image 42vm.hmp_qemu_io('drive0', 'write -P0x16 0 4096'); 43vm.hmp_qemu_io('drive0', 'write -P0x17 4096 1'); 44 45# do backup and wait for completion 46vm.qmp('drive-backup', **{ 47 'device': 'drive0', 48 'sync': 'full', 49 'target': target_img 50}) 51 52event = vm.event_wait(name='BLOCK_JOB_COMPLETED', 53 match={'data': {'device': 'drive0'}}, 54 timeout=5.0) 55 56# shutdown to sync images 57vm.shutdown() 58 59# backup succeeded, check if image is correct 60qemu_img_log('compare', test_img, target_img) 61