mirror of https://gitee.com/openkylin/qemu.git
iotests: Test committing to short backing file
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20200424125448.63318-10-kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf
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#!/usr/bin/env python3
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#
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# Copyright (C) 2019 Red Hat, Inc.
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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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# Creator/Owner: Kevin Wolf <kwolf@redhat.com>
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#
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# Some tests for short backing files and short overlays
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import iotests
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iotests.verify_image_format(supported_fmts=['qcow2'])
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iotests.verify_platform(['linux'])
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size_short = 1 * 1024 * 1024
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size_long = 2 * 1024 * 1024
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size_diff = size_long - size_short
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def create_chain() -> None:
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iotests.qemu_img_log('create', '-f', iotests.imgfmt, base,
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str(size_long))
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iotests.qemu_img_log('create', '-f', iotests.imgfmt, '-b', base, mid,
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str(size_short))
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iotests.qemu_img_log('create', '-f', iotests.imgfmt, '-b', mid, top,
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str(size_long))
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iotests.qemu_io_log('-c', 'write -P 1 0 %d' % size_long, base)
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def create_vm() -> iotests.VM:
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vm = iotests.VM()
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vm.add_blockdev('file,filename=%s,node-name=base-file' % base)
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vm.add_blockdev('%s,file=base-file,node-name=base' % iotests.imgfmt)
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vm.add_blockdev('file,filename=%s,node-name=mid-file' % mid)
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vm.add_blockdev('%s,file=mid-file,node-name=mid,backing=base'
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% iotests.imgfmt)
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vm.add_drive(top, 'backing=mid,node-name=top')
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return vm
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with iotests.FilePath('base') as base, \
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iotests.FilePath('mid') as mid, \
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iotests.FilePath('top') as top:
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iotests.log('== Commit tests ==')
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create_chain()
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iotests.log('=== Check visible data ===')
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iotests.qemu_io_log('-c', 'read -P 1 0 %d' % size_short, top)
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iotests.qemu_io_log('-c', 'read -P 0 %d %d' % (size_short, size_diff), top)
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iotests.log('=== Checking allocation status ===')
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iotests.qemu_io_log('-c', 'alloc 0 %d' % size_short,
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'-c', 'alloc %d %d' % (size_short, size_diff),
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base)
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iotests.qemu_io_log('-c', 'alloc 0 %d' % size_short,
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'-c', 'alloc %d %d' % (size_short, size_diff),
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mid)
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iotests.qemu_io_log('-c', 'alloc 0 %d' % size_short,
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'-c', 'alloc %d %d' % (size_short, size_diff),
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top)
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iotests.log('=== Checking map ===')
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iotests.qemu_img_log('map', '--output=json', base)
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iotests.qemu_img_log('map', '--output=human', base)
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iotests.qemu_img_log('map', '--output=json', mid)
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iotests.qemu_img_log('map', '--output=human', mid)
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iotests.qemu_img_log('map', '--output=json', top)
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iotests.qemu_img_log('map', '--output=human', top)
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iotests.log('=== Testing qemu-img commit (top -> mid) ===')
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iotests.qemu_img_log('commit', top)
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iotests.img_info_log(mid)
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iotests.qemu_io_log('-c', 'read -P 1 0 %d' % size_short, mid)
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iotests.qemu_io_log('-c', 'read -P 0 %d %d' % (size_short, size_diff), mid)
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iotests.log('=== Testing HMP commit (top -> mid) ===')
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create_chain()
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with create_vm() as vm:
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vm.launch()
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vm.qmp_log('human-monitor-command', command_line='commit drive0')
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iotests.img_info_log(mid)
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iotests.qemu_io_log('-c', 'read -P 1 0 %d' % size_short, mid)
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iotests.qemu_io_log('-c', 'read -P 0 %d %d' % (size_short, size_diff), mid)
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iotests.log('=== Testing QMP active commit (top -> mid) ===')
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create_chain()
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with create_vm() as vm:
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vm.launch()
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vm.qmp_log('block-commit', device='top', base_node='mid',
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job_id='job0', auto_dismiss=False)
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vm.run_job('job0', wait=5)
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iotests.img_info_log(mid)
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iotests.qemu_io_log('-c', 'read -P 1 0 %d' % size_short, mid)
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iotests.qemu_io_log('-c', 'read -P 0 %d %d' % (size_short, size_diff), mid)
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iotests.log('== Resize tests ==')
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# Use different sizes for different allocation modes:
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#
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# We want to have at least one test where 32 bit truncation in the size of
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# the overlapping area becomes visible. This is covered by the
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# prealloc='off' case (1G to 6G is an overlap of 5G).
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#
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# However, we can only do this for modes that don't preallocate data
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# because otherwise we might run out of space on the test host.
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#
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# We also want to test some unaligned combinations.
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for (prealloc, base_size, top_size_old, top_size_new, off) in [
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('off', '6G', '1G', '8G', '5G'),
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('metadata', '32G', '30G', '33G', '31G'),
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('falloc', '10M', '5M', '15M', '9M'),
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('full', '16M', '8M', '12M', '11M'),
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('off', '384k', '253k', '512k', '253k'),
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('off', '400k', '256k', '512k', '336k'),
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('off', '512k', '256k', '500k', '436k')]:
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iotests.log('=== preallocation=%s ===' % prealloc)
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iotests.qemu_img_log('create', '-f', iotests.imgfmt, base, base_size)
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iotests.qemu_img_log('create', '-f', iotests.imgfmt, '-b', base, top,
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top_size_old)
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iotests.qemu_io_log('-c', 'write -P 1 %s 64k' % off, base)
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# After this, top_size_old to base_size should be allocated/zeroed.
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#
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# In theory, leaving base_size to top_size_new unallocated would be
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# correct, but in practice, if we zero out anything, we zero out
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# everything up to top_size_new.
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iotests.qemu_img_log('resize', '-f', iotests.imgfmt,
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'--preallocation', prealloc, top, top_size_new)
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iotests.qemu_io_log('-c', 'read -P 0 %s 64k' % off, top)
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iotests.qemu_io_log('-c', 'map', top)
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iotests.qemu_img_log('map', '--output=json', top)
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@ -0,0 +1,268 @@
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== Commit tests ==
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Formatting 'TEST_DIR/PID-base', fmt=qcow2 size=2097152 cluster_size=65536 lazy_refcounts=off refcount_bits=16
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Formatting 'TEST_DIR/PID-mid', fmt=qcow2 size=1048576 backing_file=TEST_DIR/PID-base cluster_size=65536 lazy_refcounts=off refcount_bits=16
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Formatting 'TEST_DIR/PID-top', fmt=qcow2 size=2097152 backing_file=TEST_DIR/PID-mid cluster_size=65536 lazy_refcounts=off refcount_bits=16
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wrote 2097152/2097152 bytes at offset 0
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2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== Check visible data ===
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read 1048576/1048576 bytes at offset 0
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1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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read 1048576/1048576 bytes at offset 1048576
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1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== Checking allocation status ===
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1048576/1048576 bytes allocated at offset 0 bytes
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1048576/1048576 bytes allocated at offset 1 MiB
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0/1048576 bytes allocated at offset 0 bytes
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0/0 bytes allocated at offset 1 MiB
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0/1048576 bytes allocated at offset 0 bytes
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0/1048576 bytes allocated at offset 1 MiB
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=== Checking map ===
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[{ "start": 0, "length": 2097152, "depth": 0, "zero": false, "data": true, "offset": 327680}]
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Offset Length Mapped to File
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0 0x200000 0x50000 TEST_DIR/PID-base
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[{ "start": 0, "length": 1048576, "depth": 1, "zero": false, "data": true, "offset": 327680}]
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Offset Length Mapped to File
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0 0x100000 0x50000 TEST_DIR/PID-base
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[{ "start": 0, "length": 1048576, "depth": 2, "zero": false, "data": true, "offset": 327680},
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{ "start": 1048576, "length": 1048576, "depth": 0, "zero": true, "data": false}]
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Offset Length Mapped to File
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0 0x100000 0x50000 TEST_DIR/PID-base
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=== Testing qemu-img commit (top -> mid) ===
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Image committed.
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image: TEST_IMG
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file format: IMGFMT
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virtual size: 2 MiB (2097152 bytes)
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cluster_size: 65536
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backing file: TEST_DIR/PID-base
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Format specific information:
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compat: 1.1
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lazy refcounts: false
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refcount bits: 16
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corrupt: false
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read 1048576/1048576 bytes at offset 0
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1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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read 1048576/1048576 bytes at offset 1048576
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1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== Testing HMP commit (top -> mid) ===
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Formatting 'TEST_DIR/PID-base', fmt=qcow2 size=2097152 cluster_size=65536 lazy_refcounts=off refcount_bits=16
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Formatting 'TEST_DIR/PID-mid', fmt=qcow2 size=1048576 backing_file=TEST_DIR/PID-base cluster_size=65536 lazy_refcounts=off refcount_bits=16
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Formatting 'TEST_DIR/PID-top', fmt=qcow2 size=2097152 backing_file=TEST_DIR/PID-mid cluster_size=65536 lazy_refcounts=off refcount_bits=16
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wrote 2097152/2097152 bytes at offset 0
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2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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{"execute": "human-monitor-command", "arguments": {"command-line": "commit drive0"}}
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{"return": ""}
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image: TEST_IMG
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file format: IMGFMT
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virtual size: 2 MiB (2097152 bytes)
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cluster_size: 65536
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backing file: TEST_DIR/PID-base
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Format specific information:
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compat: 1.1
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lazy refcounts: false
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refcount bits: 16
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corrupt: false
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read 1048576/1048576 bytes at offset 0
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1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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read 1048576/1048576 bytes at offset 1048576
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1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== Testing QMP active commit (top -> mid) ===
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Formatting 'TEST_DIR/PID-base', fmt=qcow2 size=2097152 cluster_size=65536 lazy_refcounts=off refcount_bits=16
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Formatting 'TEST_DIR/PID-mid', fmt=qcow2 size=1048576 backing_file=TEST_DIR/PID-base cluster_size=65536 lazy_refcounts=off refcount_bits=16
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Formatting 'TEST_DIR/PID-top', fmt=qcow2 size=2097152 backing_file=TEST_DIR/PID-mid cluster_size=65536 lazy_refcounts=off refcount_bits=16
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wrote 2097152/2097152 bytes at offset 0
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2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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{"execute": "block-commit", "arguments": {"auto-dismiss": false, "base-node": "mid", "device": "top", "job-id": "job0"}}
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{"return": {}}
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{"execute": "job-complete", "arguments": {"id": "job0"}}
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{"return": {}}
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{"data": {"device": "job0", "len": 0, "offset": 0, "speed": 0, "type": "commit"}, "event": "BLOCK_JOB_READY", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
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{"data": {"device": "job0", "len": 0, "offset": 0, "speed": 0, "type": "commit"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
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{"execute": "job-dismiss", "arguments": {"id": "job0"}}
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{"return": {}}
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image: TEST_IMG
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file format: IMGFMT
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virtual size: 2 MiB (2097152 bytes)
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cluster_size: 65536
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backing file: TEST_DIR/PID-base
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Format specific information:
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compat: 1.1
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lazy refcounts: false
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refcount bits: 16
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corrupt: false
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read 1048576/1048576 bytes at offset 0
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1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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read 1048576/1048576 bytes at offset 1048576
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1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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== Resize tests ==
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=== preallocation=off ===
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Formatting 'TEST_DIR/PID-base', fmt=qcow2 size=6442450944 cluster_size=65536 lazy_refcounts=off refcount_bits=16
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Formatting 'TEST_DIR/PID-top', fmt=qcow2 size=1073741824 backing_file=TEST_DIR/PID-base cluster_size=65536 lazy_refcounts=off refcount_bits=16
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wrote 65536/65536 bytes at offset 5368709120
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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Image resized.
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read 65536/65536 bytes at offset 5368709120
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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1 GiB (0x40000000) bytes not allocated at offset 0 bytes (0x0)
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7 GiB (0x1c0000000) bytes allocated at offset 1 GiB (0x40000000)
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[{ "start": 0, "length": 1073741824, "depth": 1, "zero": true, "data": false},
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{ "start": 1073741824, "length": 7516192768, "depth": 0, "zero": true, "data": false}]
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=== preallocation=metadata ===
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Formatting 'TEST_DIR/PID-base', fmt=qcow2 size=34359738368 cluster_size=65536 lazy_refcounts=off refcount_bits=16
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Formatting 'TEST_DIR/PID-top', fmt=qcow2 size=32212254720 backing_file=TEST_DIR/PID-base cluster_size=65536 lazy_refcounts=off refcount_bits=16
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wrote 65536/65536 bytes at offset 33285996544
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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Image resized.
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read 65536/65536 bytes at offset 33285996544
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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||||||
|
30 GiB (0x780000000) bytes not allocated at offset 0 bytes (0x0)
|
||||||
|
3 GiB (0xc0000000) bytes allocated at offset 30 GiB (0x780000000)
|
||||||
|
|
||||||
|
[{ "start": 0, "length": 32212254720, "depth": 1, "zero": true, "data": false},
|
||||||
|
{ "start": 32212254720, "length": 536870912, "depth": 0, "zero": true, "data": false, "offset": 327680},
|
||||||
|
{ "start": 32749125632, "length": 536870912, "depth": 0, "zero": true, "data": false, "offset": 537264128},
|
||||||
|
{ "start": 33285996544, "length": 536870912, "depth": 0, "zero": true, "data": false, "offset": 1074200576},
|
||||||
|
{ "start": 33822867456, "length": 536870912, "depth": 0, "zero": true, "data": false, "offset": 1611137024},
|
||||||
|
{ "start": 34359738368, "length": 536870912, "depth": 0, "zero": true, "data": false, "offset": 2148139008},
|
||||||
|
{ "start": 34896609280, "length": 536870912, "depth": 0, "zero": true, "data": false, "offset": 2685075456}]
|
||||||
|
|
||||||
|
=== preallocation=falloc ===
|
||||||
|
Formatting 'TEST_DIR/PID-base', fmt=qcow2 size=10485760 cluster_size=65536 lazy_refcounts=off refcount_bits=16
|
||||||
|
|
||||||
|
Formatting 'TEST_DIR/PID-top', fmt=qcow2 size=5242880 backing_file=TEST_DIR/PID-base cluster_size=65536 lazy_refcounts=off refcount_bits=16
|
||||||
|
|
||||||
|
wrote 65536/65536 bytes at offset 9437184
|
||||||
|
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||||
|
|
||||||
|
Image resized.
|
||||||
|
|
||||||
|
read 65536/65536 bytes at offset 9437184
|
||||||
|
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||||
|
|
||||||
|
5 MiB (0x500000) bytes not allocated at offset 0 bytes (0x0)
|
||||||
|
10 MiB (0xa00000) bytes allocated at offset 5 MiB (0x500000)
|
||||||
|
|
||||||
|
[{ "start": 0, "length": 5242880, "depth": 1, "zero": true, "data": false},
|
||||||
|
{ "start": 5242880, "length": 10485760, "depth": 0, "zero": true, "data": false, "offset": 327680}]
|
||||||
|
|
||||||
|
=== preallocation=full ===
|
||||||
|
Formatting 'TEST_DIR/PID-base', fmt=qcow2 size=16777216 cluster_size=65536 lazy_refcounts=off refcount_bits=16
|
||||||
|
|
||||||
|
Formatting 'TEST_DIR/PID-top', fmt=qcow2 size=8388608 backing_file=TEST_DIR/PID-base cluster_size=65536 lazy_refcounts=off refcount_bits=16
|
||||||
|
|
||||||
|
wrote 65536/65536 bytes at offset 11534336
|
||||||
|
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||||
|
|
||||||
|
Image resized.
|
||||||
|
|
||||||
|
read 65536/65536 bytes at offset 11534336
|
||||||
|
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||||
|
|
||||||
|
8 MiB (0x800000) bytes not allocated at offset 0 bytes (0x0)
|
||||||
|
4 MiB (0x400000) bytes allocated at offset 8 MiB (0x800000)
|
||||||
|
|
||||||
|
[{ "start": 0, "length": 8388608, "depth": 1, "zero": true, "data": false},
|
||||||
|
{ "start": 8388608, "length": 4194304, "depth": 0, "zero": true, "data": false, "offset": 327680}]
|
||||||
|
|
||||||
|
=== preallocation=off ===
|
||||||
|
Formatting 'TEST_DIR/PID-base', fmt=qcow2 size=393216 cluster_size=65536 lazy_refcounts=off refcount_bits=16
|
||||||
|
|
||||||
|
Formatting 'TEST_DIR/PID-top', fmt=qcow2 size=259072 backing_file=TEST_DIR/PID-base cluster_size=65536 lazy_refcounts=off refcount_bits=16
|
||||||
|
|
||||||
|
wrote 65536/65536 bytes at offset 259072
|
||||||
|
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||||
|
|
||||||
|
Image resized.
|
||||||
|
|
||||||
|
read 65536/65536 bytes at offset 259072
|
||||||
|
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||||
|
|
||||||
|
192 KiB (0x30000) bytes not allocated at offset 0 bytes (0x0)
|
||||||
|
320 KiB (0x50000) bytes allocated at offset 192 KiB (0x30000)
|
||||||
|
|
||||||
|
[{ "start": 0, "length": 196608, "depth": 1, "zero": true, "data": false},
|
||||||
|
{ "start": 196608, "length": 65536, "depth": 0, "zero": false, "data": true, "offset": 327680},
|
||||||
|
{ "start": 262144, "length": 262144, "depth": 0, "zero": true, "data": false}]
|
||||||
|
|
||||||
|
=== preallocation=off ===
|
||||||
|
Formatting 'TEST_DIR/PID-base', fmt=qcow2 size=409600 cluster_size=65536 lazy_refcounts=off refcount_bits=16
|
||||||
|
|
||||||
|
Formatting 'TEST_DIR/PID-top', fmt=qcow2 size=262144 backing_file=TEST_DIR/PID-base cluster_size=65536 lazy_refcounts=off refcount_bits=16
|
||||||
|
|
||||||
|
wrote 65536/65536 bytes at offset 344064
|
||||||
|
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||||
|
|
||||||
|
Image resized.
|
||||||
|
|
||||||
|
read 65536/65536 bytes at offset 344064
|
||||||
|
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||||
|
|
||||||
|
256 KiB (0x40000) bytes not allocated at offset 0 bytes (0x0)
|
||||||
|
256 KiB (0x40000) bytes allocated at offset 256 KiB (0x40000)
|
||||||
|
|
||||||
|
[{ "start": 0, "length": 262144, "depth": 1, "zero": true, "data": false},
|
||||||
|
{ "start": 262144, "length": 262144, "depth": 0, "zero": true, "data": false}]
|
||||||
|
|
||||||
|
=== preallocation=off ===
|
||||||
|
Formatting 'TEST_DIR/PID-base', fmt=qcow2 size=524288 cluster_size=65536 lazy_refcounts=off refcount_bits=16
|
||||||
|
|
||||||
|
Formatting 'TEST_DIR/PID-top', fmt=qcow2 size=262144 backing_file=TEST_DIR/PID-base cluster_size=65536 lazy_refcounts=off refcount_bits=16
|
||||||
|
|
||||||
|
wrote 65536/65536 bytes at offset 446464
|
||||||
|
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||||
|
|
||||||
|
Image resized.
|
||||||
|
|
||||||
|
read 65536/65536 bytes at offset 446464
|
||||||
|
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||||
|
|
||||||
|
256 KiB (0x40000) bytes not allocated at offset 0 bytes (0x0)
|
||||||
|
244 KiB (0x3d000) bytes allocated at offset 256 KiB (0x40000)
|
||||||
|
|
||||||
|
[{ "start": 0, "length": 262144, "depth": 1, "zero": true, "data": false},
|
||||||
|
{ "start": 262144, "length": 249856, "depth": 0, "zero": true, "data": false}]
|
||||||
|
|
||||||
|
|
@ -286,6 +286,7 @@
|
||||||
270 rw backing quick
|
270 rw backing quick
|
||||||
272 rw
|
272 rw
|
||||||
273 backing quick
|
273 backing quick
|
||||||
|
274 rw backing
|
||||||
277 rw quick
|
277 rw quick
|
||||||
279 rw backing quick
|
279 rw backing quick
|
||||||
280 rw migration quick
|
280 rw migration quick
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue