mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-23 11:39:53 +00:00
093a13acbf
This makes these callsites a little simpler, but the real motivation is a forthcoming commit will change the return type of qemu_io(), so removing users of the return value now is helpful. Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Hanna Reitz <hreitz@redhat.com> Message-Id: <20220418211504.943969-2-jsnow@redhat.com> Signed-off-by: Hanna Reitz <hreitz@redhat.com>
75 lines
2.1 KiB
Python
Executable File
75 lines
2.1 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
# group: rw quick
|
|
#
|
|
# Test for dumping of qcow2 image metadata
|
|
#
|
|
# Copyright (c) 2020 Virtuozzo International GmbH
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 2 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
#
|
|
|
|
import iotests
|
|
import subprocess
|
|
from iotests import qemu_img_create, qemu_io_log, file_path, log, \
|
|
verify_qcow2_zstd_compression
|
|
|
|
iotests.script_initialize(supported_fmts=['qcow2'],
|
|
unsupported_imgopts=['refcount_bits', 'compat'])
|
|
verify_qcow2_zstd_compression()
|
|
|
|
disk = file_path('disk')
|
|
chunk = 1024 * 1024
|
|
|
|
|
|
def create_bitmap(bitmap_number, disabled):
|
|
granularity = 1 << (14 + bitmap_number)
|
|
bitmap_name = 'bitmap-' + str(bitmap_number)
|
|
args = ['bitmap', '--add', '-g', f'{granularity}', '-f', iotests.imgfmt,
|
|
disk, bitmap_name]
|
|
if disabled:
|
|
args.append('--disable')
|
|
|
|
iotests.qemu_img(*args)
|
|
|
|
|
|
def write_to_disk(offset, size):
|
|
write = f'write {offset} {size}'
|
|
qemu_io_log('-c', write, disk)
|
|
|
|
|
|
def add_bitmap(num, begin, end, disabled):
|
|
log(f'Add bitmap {num}')
|
|
create_bitmap(num, disabled)
|
|
for i in range(begin, end):
|
|
write_to_disk((i) * chunk, chunk)
|
|
log('')
|
|
|
|
|
|
def test(compression_type: str, json_output: bool) -> None:
|
|
qemu_img_create('-f', iotests.imgfmt,
|
|
'-o', f'compression_type={compression_type}',
|
|
disk, '10M')
|
|
add_bitmap(1, 0, 6, False)
|
|
add_bitmap(2, 6, 8, True)
|
|
|
|
cmd = ['./qcow2.py', disk, 'dump-header']
|
|
if json_output:
|
|
cmd.append('-j')
|
|
|
|
subprocess.run(cmd)
|
|
|
|
|
|
test('zlib', False)
|
|
test('zstd', True)
|