projects / qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| fc905d3a VSO |
1 | #!/usr/bin/env python |
| 2 | # | |
| 3 | # Tests for persistent dirty bitmaps. | |
| 4 | # | |
| 5 | # Copyright: Vladimir Sementsov-Ogievskiy 2015-2017 | |
| 6 | # | |
| 7 | # This program is free software; you can redistribute it and/or modify | |
| 8 | # it under the terms of the GNU General Public License as published by | |
| 9 | # the Free Software Foundation; either version 2 of the License, or | |
| 10 | # (at your option) any later version. | |
| 11 | # | |
| 12 | # This program is distributed in the hope that it will be useful, | |
| 13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | # GNU General Public License for more details. | |
| 16 | # | |
| 17 | # You should have received a copy of the GNU General Public License | |
| 18 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 | # | |
| 20 | ||
| 21 | import os | |
| 22 | import re | |
| 23 | import iotests | |
| 24 | from iotests import qemu_img | |
| 25 | ||
| 26 | disk = os.path.join(iotests.test_dir, 'disk') | |
| 27 | disk_size = 0x40000000 # 1G | |
| 28 | ||
| 29 | # regions for qemu_io: (start, count) in bytes | |
| 30 | regions1 = ((0, 0x100000), | |
| 31 | (0x200000, 0x100000)) | |
| 32 | ||
| 33 | regions2 = ((0x10000000, 0x20000), | |
| 34 | (0x3fff0000, 0x10000)) | |
| 35 | ||
| 36 | class TestPersistentDirtyBitmap(iotests.QMPTestCase): | |
| 37 | ||
| 38 | def setUp(self): | |
| 39 | qemu_img('create', '-f', iotests.imgfmt, disk, str(disk_size)) | |
| 40 | ||
| 41 | def tearDown(self): | |
| 42 | os.remove(disk) | |
| 43 | ||
| 44 | def mkVm(self): | |
| 45 | return iotests.VM().add_drive(disk) | |
| 46 | ||
| 47 | def mkVmRo(self): | |
| 48 | return iotests.VM().add_drive(disk, opts='readonly=on') | |
| 49 | ||
| 50 | def getSha256(self): | |
| 51 | result = self.vm.qmp('x-debug-block-dirty-bitmap-sha256', | |
| 52 | node='drive0', name='bitmap0') | |
| 53 | return result['return']['sha256'] | |
| 54 | ||
| 55 | def checkBitmap(self, sha256): | |
| 56 | result = self.vm.qmp('x-debug-block-dirty-bitmap-sha256', | |
| 57 | node='drive0', name='bitmap0') | |
| 58 | self.assert_qmp(result, 'return/sha256', sha256); | |
| 59 | ||
| 60 | def writeRegions(self, regions): | |
| 61 | for r in regions: | |
| 62 | self.vm.hmp_qemu_io('drive0', | |
| 63 | 'write %d %d' % r) | |
| 64 | ||
| 65 | def qmpAddBitmap(self): | |
| 66 | self.vm.qmp('block-dirty-bitmap-add', node='drive0', | |
| 67 | name='bitmap0', persistent=True, autoload=True) | |
| 68 | ||
| 69 | def test_persistent(self): | |
| 70 | self.vm = self.mkVm() | |
| 71 | self.vm.launch() | |
| 72 | self.qmpAddBitmap() | |
| 73 | ||
| 74 | self.writeRegions(regions1) | |
| 75 | sha256 = self.getSha256() | |
| 76 | ||
| 77 | self.vm.shutdown() | |
| 78 | ||
| 79 | self.vm = self.mkVmRo() | |
| 80 | self.vm.launch() | |
| 81 | self.vm.shutdown() | |
| 82 | ||
| 83 | #catch 'Persistent bitmaps are lost' possible error | |
| 84 | log = self.vm.get_log() | |
| 85 | log = re.sub(r'^\[I \d+\.\d+\] OPENED\n', '', log) | |
| 86 | log = re.sub(r'\[I \+\d+\.\d+\] CLOSED\n?$', '', log) | |
| 87 | if log: | |
| 88 | print log | |
| 89 | ||
| 90 | self.vm = self.mkVm() | |
| 91 | self.vm.launch() | |
| 92 | ||
| 93 | self.checkBitmap(sha256) | |
| 94 | self.writeRegions(regions2) | |
| 95 | sha256 = self.getSha256() | |
| 96 | ||
| 97 | self.vm.shutdown() | |
| 98 | self.vm.launch() | |
| 99 | ||
| 100 | self.checkBitmap(sha256) | |
| 101 | ||
| 102 | self.vm.shutdown() | |
| 103 | ||
| 104 | if __name__ == '__main__': | |
| 105 | iotests.main(supported_fmts=['qcow2']) |