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 27disk, top = file_path('disk', 'top') 28size = 1024 * 1024 29 30qemu_img_create('-f', iotests.imgfmt, disk, str(size)) 31 32vm = iotests.VM().add_drive(disk, opts='node-name=base') 33vm.launch() 34 35vm.qmp_log('block-dirty-bitmap-add', node='drive0', name='bitmap0') 36vm.qmp_log('block-dirty-bitmap-add', node='drive0', name='bitmap1', 37 persistent=True) 38vm.qmp_log('block-dirty-bitmap-add', node='drive0', name='bitmap2', 39 persistent=True) 40 41vm.hmp_qemu_io('drive0', 'write 0 512K') 42 43vm.qmp_log('transaction', indent=2, actions=[ 44 {'type': 'blockdev-snapshot-sync', 45 'data': {'device': 'drive0', 'snapshot-file': top, 46 'snapshot-node-name': 'snap'}}, 47 48 # copy non-persistent bitmap0 49 {'type': 'block-dirty-bitmap-add', 50 'data': {'node': 'snap', 'name': 'bitmap0'}}, 51 {'type': 'block-dirty-bitmap-merge', 52 'data': {'node': 'snap', 'target': 'bitmap0', 53 'bitmaps': [{'node': 'base', 'name': 'bitmap0'}]}}, 54 55 # copy persistent bitmap1, original will be saved to base image 56 {'type': 'block-dirty-bitmap-add', 57 'data': {'node': 'snap', 'name': 'bitmap1', 'persistent': True}}, 58 {'type': 'block-dirty-bitmap-merge', 59 'data': {'node': 'snap', 'target': 'bitmap1', 60 'bitmaps': [{'node': 'base', 'name': 'bitmap1'}]}}, 61 62 # move persistent bitmap2, original will be removed and not saved 63 # to base image 64 {'type': 'block-dirty-bitmap-add', 65 'data': {'node': 'snap', 'name': 'bitmap2', 'persistent': True}}, 66 {'type': 'block-dirty-bitmap-merge', 67 'data': {'node': 'snap', 'target': 'bitmap2', 68 'bitmaps': [{'node': 'base', 'name': 'bitmap2'}]}}, 69 {'type': 'block-dirty-bitmap-remove', 70 'data': {'node': 'base', 'name': 'bitmap2'}} 71], filters=[iotests.filter_qmp_testfiles]) 72 73result = vm.qmp('query-block')['return'][0] 74log("query-block: device = {}, node-name = {}, dirty-bitmaps:".format( 75 result['device'], result['inserted']['node-name'])) 76log(result['dirty-bitmaps'], indent=2) 77log("\nbitmaps in backing image:") 78log(result['inserted']['image']['backing-image']['format-specific'] \ 79 ['data']['bitmaps'], indent=2) 80 81vm.shutdown() 82