1#!/usr/bin/env python3 2# group: rw backing quick 3# 4# Test external snapshot with bitmap copying and moving. 5# 6# Copyright (c) 2019 Virtuozzo International GmbH. All rights reserved. 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 22import iotests 23from iotests import qemu_img_create, file_path, log 24 25iotests.script_initialize(supported_fmts=['qcow2'], 26 unsupported_imgopts=['compat']) 27 28disk, top = file_path('disk', 'top') 29size = 1024 * 1024 30 31qemu_img_create('-f', iotests.imgfmt, disk, str(size)) 32 33vm = iotests.VM().add_drive(disk, opts='node-name=base') 34vm.launch() 35 36vm.qmp_log('block-dirty-bitmap-add', node='drive0', name='bitmap0') 37vm.qmp_log('block-dirty-bitmap-add', node='drive0', name='bitmap1', 38 persistent=True) 39vm.qmp_log('block-dirty-bitmap-add', node='drive0', name='bitmap2', 40 persistent=True) 41 42vm.hmp_qemu_io('drive0', 'write 0 512K') 43 44vm.qmp_log('transaction', indent=2, actions=[ 45 {'type': 'blockdev-snapshot-sync', 46 'data': {'device': 'drive0', 'snapshot-file': top, 47 'snapshot-node-name': 'snap'}}, 48 49 # copy non-persistent bitmap0 50 {'type': 'block-dirty-bitmap-add', 51 'data': {'node': 'snap', 'name': 'bitmap0'}}, 52 {'type': 'block-dirty-bitmap-merge', 53 'data': {'node': 'snap', 'target': 'bitmap0', 54 'bitmaps': [{'node': 'base', 'name': 'bitmap0'}]}}, 55 56 # copy persistent bitmap1, original will be saved to base image 57 {'type': 'block-dirty-bitmap-add', 58 'data': {'node': 'snap', 'name': 'bitmap1', 'persistent': True}}, 59 {'type': 'block-dirty-bitmap-merge', 60 'data': {'node': 'snap', 'target': 'bitmap1', 61 'bitmaps': [{'node': 'base', 'name': 'bitmap1'}]}}, 62 63 # move persistent bitmap2, original will be removed and not saved 64 # to base image 65 {'type': 'block-dirty-bitmap-add', 66 'data': {'node': 'snap', 'name': 'bitmap2', 'persistent': True}}, 67 {'type': 'block-dirty-bitmap-merge', 68 'data': {'node': 'snap', 'target': 'bitmap2', 69 'bitmaps': [{'node': 'base', 'name': 'bitmap2'}]}}, 70 {'type': 'block-dirty-bitmap-remove', 71 'data': {'node': 'base', 'name': 'bitmap2'}} 72], filters=[iotests.filter_qmp_testfiles]) 73 74result = vm.qmp('query-block')['return'][0] 75log("query-block: device = {}, node-name = {}, dirty-bitmaps:".format( 76 result['device'], result['inserted']['node-name'])) 77log(result['inserted']['dirty-bitmaps'], indent=2) 78log("\nbitmaps in backing image:") 79log(result['inserted']['image']['backing-image']['format-specific'] \ 80 ['data']['bitmaps'], indent=2) 81 82vm.shutdown() 83