1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
#!/usr/bin/env python
#
# Tests for persistent dirty bitmaps.
#
# Copyright: Vladimir Sementsov-Ogievskiy 2015-2017
#
# 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 os
import re
import iotests
from iotests import qemu_img
disk = os.path.join(iotests.test_dir, 'disk')
disk_size = 0x40000000 # 1G
# regions for qemu_io: (start, count) in bytes
regions1 = ((0x0fff00, 0x10000),
(0x200000, 0x100000))
regions2 = ((0x10000000, 0x20000),
(0x3fff0000, 0x10000))
class TestPersistentDirtyBitmap(iotests.QMPTestCase):
def setUp(self):
qemu_img('create', '-f', iotests.imgfmt, disk, str(disk_size))
def tearDown(self):
os.remove(disk)
def mkVm(self):
return iotests.VM().add_drive(disk)
def mkVmRo(self):
return iotests.VM().add_drive(disk, opts='readonly=on')
def getSha256(self):
result = self.vm.qmp('x-debug-block-dirty-bitmap-sha256',
node='drive0', name='bitmap0')
return result['return']['sha256']
def checkBitmap(self, sha256):
result = self.vm.qmp('x-debug-block-dirty-bitmap-sha256',
node='drive0', name='bitmap0')
self.assert_qmp(result, 'return/sha256', sha256);
def writeRegions(self, regions):
for r in regions:
self.vm.hmp_qemu_io('drive0',
'write %d %d' % r)
def qmpAddBitmap(self):
self.vm.qmp('block-dirty-bitmap-add', node='drive0',
name='bitmap0', persistent=True)
def test_persistent(self):
self.vm = self.mkVm()
self.vm.launch()
self.qmpAddBitmap()
self.writeRegions(regions1)
sha256 = self.getSha256()
self.vm.shutdown()
self.vm = self.mkVmRo()
self.vm.launch()
self.vm.shutdown()
#catch 'Persistent bitmaps are lost' possible error
log = self.vm.get_log()
log = re.sub(r'^\[I \d+\.\d+\] OPENED\n', '', log)
log = re.sub(r'\[I \+\d+\.\d+\] CLOSED\n?$', '', log)
if log:
print log
self.vm = self.mkVm()
self.vm.launch()
self.checkBitmap(sha256)
self.writeRegions(regions2)
sha256 = self.getSha256()
self.vm.shutdown()
self.vm.launch()
self.checkBitmap(sha256)
self.vm.shutdown()
if __name__ == '__main__':
iotests.main(supported_fmts=['qcow2'])
|
