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iotests: add parallels-read-bitmap test
Test support for reading bitmap from parallels image format. parallels-with-bitmap.bz2 is generated on Virtuozzo by parallels-with-bitmap.sh Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20210224104707.88430-7-vsementsov@virtuozzo.com> Reviewed-by: Denis V. Lunev <den@openvz.org> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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BIN
tests/qemu-iotests/sample_images/parallels-with-bitmap.bz2
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BIN
tests/qemu-iotests/sample_images/parallels-with-bitmap.bz2
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tests/qemu-iotests/sample_images/parallels-with-bitmap.sh
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tests/qemu-iotests/sample_images/parallels-with-bitmap.sh
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#!/bin/bash
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#
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# Test parallels load bitmap
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#
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# Copyright (c) 2021 Virtuozzo International GmbH.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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CT=parallels-with-bitmap-ct
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DIR=$PWD/parallels-with-bitmap-dir
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IMG=$DIR/root.hds
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XML=$DIR/DiskDescriptor.xml
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TARGET=parallels-with-bitmap.bz2
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rm -rf $DIR
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prlctl create $CT --vmtype ct
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prlctl set $CT --device-add hdd --image $DIR --recreate --size 2G
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# cleanup the image
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qemu-img create -f parallels $IMG 64G
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# create bitmap
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prlctl backup $CT
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prlctl set $CT --device-del hdd1
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prlctl destroy $CT
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dev=$(ploop mount $XML | sed -n 's/^Adding delta dev=\(\/dev\/ploop[0-9]\+\).*/\1/p')
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dd if=/dev/zero of=$dev bs=64K seek=5 count=2 oflag=direct
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dd if=/dev/zero of=$dev bs=64K seek=30 count=1 oflag=direct
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dd if=/dev/zero of=$dev bs=64K seek=10 count=3 oflag=direct
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ploop umount $XML # bitmap name will be in the output
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bzip2 -z $IMG
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mv $IMG.bz2 $TARGET
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rm -rf $DIR
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55
tests/qemu-iotests/tests/parallels-read-bitmap
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tests/qemu-iotests/tests/parallels-read-bitmap
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#!/usr/bin/env python3
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#
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# Test parallels load bitmap
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#
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# Copyright (c) 2021 Virtuozzo International GmbH.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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import json
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import iotests
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from iotests import qemu_nbd_popen, qemu_img_pipe, log, file_path
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iotests.script_initialize(supported_fmts=['parallels'])
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nbd_sock = file_path('nbd-sock', base_dir=iotests.sock_dir)
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disk = iotests.file_path('disk')
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bitmap = 'e4f2eed0-37fe-4539-b50b-85d2e7fd235f'
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nbd_opts = f'driver=nbd,server.type=unix,server.path={nbd_sock}' \
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f',x-dirty-bitmap=qemu:dirty-bitmap:{bitmap}'
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iotests.unarchive_sample_image('parallels-with-bitmap', disk)
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with qemu_nbd_popen('--read-only', f'--socket={nbd_sock}',
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f'--bitmap={bitmap}', '-f', iotests.imgfmt, disk):
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out = qemu_img_pipe('map', '--output=json', '--image-opts', nbd_opts)
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chunks = json.loads(out)
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cluster = 64 * 1024
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log('dirty clusters (cluster size is 64K):')
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for c in chunks:
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assert c['start'] % cluster == 0
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assert c['length'] % cluster == 0
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if c['data']:
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continue
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a = c['start'] // cluster
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b = (c['start'] + c['length']) // cluster
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if b - a > 1:
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log(f'{a}-{b-1}')
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else:
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log(a)
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6
tests/qemu-iotests/tests/parallels-read-bitmap.out
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6
tests/qemu-iotests/tests/parallels-read-bitmap.out
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Start NBD server
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dirty clusters (cluster size is 64K):
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5-6
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10-12
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30
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Kill NBD server
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