1#!/usr/bin/env python3 2# 3# Test external snapshot with bitmap copying and moving. 4# 5# Copyright (c) 2019 Virtuozzo International GmbH. All rights reserved. 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 21import iotests 22from iotests import qemu_img_create, file_path, log 23 24iotests.verify_image_format(supported_fmts=['qcow2']) 25 26disk, top = file_path('disk', 'top') 27size = 1024 * 1024 28 29qemu_img_create('-f', iotests.imgfmt, disk, str(size)) 30 31vm = iotests.VM().add_drive(disk, opts='node-name=base') 32vm.launch() 33 34vm.qmp_log('block-dirty-bitmap-add', node='drive0', name='bitmap0') 35vm.qmp_log('block-dirty-bitmap-add', node='drive0', name='bitmap1', 36 persistent=True) 37vm.qmp_log('block-dirty-bitmap-add', node='drive0', name='bitmap2', 38 persistent=True) 39 40vm.hmp_qemu_io('drive0', 'write 0 512K') 41 42vm.qmp_log('transaction', indent=2, actions=[ 43 {'type': 'blockdev-snapshot-sync', 44 'data': {'device': 'drive0', 'snapshot-file': top, 45 'snapshot-node-name': 'snap'}}, 46 47 # copy non-persistent bitmap0 48 {'type': 'block-dirty-bitmap-add', 49 'data': {'node': 'snap', 'name': 'bitmap0'}}, 50 {'type': 'block-dirty-bitmap-merge', 51 'data': {'node': 'snap', 'target': 'bitmap0', 52 'bitmaps': [{'node': 'base', 'name': 'bitmap0'}]}}, 53 54 # copy persistent bitmap1, original will be saved to base image 55 {'type': 'block-dirty-bitmap-add', 56 'data': {'node': 'snap', 'name': 'bitmap1', 'persistent': True}}, 57 {'type': 'block-dirty-bitmap-merge', 58 'data': {'node': 'snap', 'target': 'bitmap1', 59 'bitmaps': [{'node': 'base', 'name': 'bitmap1'}]}}, 60 61 # move persistent bitmap2, original will be removed and not saved 62 # to base image 63 {'type': 'block-dirty-bitmap-add', 64 'data': {'node': 'snap', 'name': 'bitmap2', 'persistent': True}}, 65 {'type': 'block-dirty-bitmap-merge', 66 'data': {'node': 'snap', 'target': 'bitmap2', 67 'bitmaps': [{'node': 'base', 'name': 'bitmap2'}]}}, 68 {'type': 'block-dirty-bitmap-remove', 69 'data': {'node': 'base', 'name': 'bitmap2'}} 70], filters=[iotests.filter_qmp_testfiles]) 71 72result = vm.qmp('query-block')['return'][0] 73log("query-block: device = {}, node-name = {}, dirty-bitmaps:".format( 74 result['device'], result['inserted']['node-name'])) 75log(result['dirty-bitmaps'], indent=2) 76log("\nbitmaps in backing image:") 77log(result['inserted']['image']['backing-image']['format-specific'] \ 78 ['data']['bitmaps'], indent=2) 79 80vm.shutdown() 81