jcs.org
qemu with hax to log dma reads & writes
jcs.org/2018/11/12/vfio
iotests: test clearing unknown autoclear_features by qcow2
Test clearing unknown autoclear_features by qcow2 on incoming
migration.
[ kwolf: Fixed wait for destination VM startup ]
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
authored by
Vladimir Sementsov-Ogievskiy
and committed by
Kevin Wolf
3590cd0f
dafe0960
+72
+66
tests/qemu-iotests/196
+66
tests/qemu-iotests/196
···
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#!/usr/bin/env python
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#
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# Test clearing unknown autoclear_features flag by qcow2 after
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# migration. This test mimics migration to older qemu.
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#
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# Copyright (c) 2017 Parallels 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 os
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import iotests
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from iotests import qemu_img
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disk = os.path.join(iotests.test_dir, 'disk')
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migfile = os.path.join(iotests.test_dir, 'migfile')
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class TestInvalidateAutoclear(iotests.QMPTestCase):
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def tearDown(self):
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self.vm_a.shutdown()
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self.vm_b.shutdown()
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os.remove(disk)
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os.remove(migfile)
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def setUp(self):
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qemu_img('create', '-f', iotests.imgfmt, disk, '1M')
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self.vm_a = iotests.VM(path_suffix='a').add_drive(disk)
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self.vm_a.launch()
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self.vm_b = iotests.VM(path_suffix='b').add_drive(disk)
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self.vm_b.add_incoming("exec: cat '" + migfile + "'")
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def test_migration(self):
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result = self.vm_a.qmp('migrate', uri='exec:cat>' + migfile)
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self.assert_qmp(result, 'return', {});
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self.assertNotEqual(self.vm_a.event_wait("STOP"), None)
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with open(disk, 'r+b') as f:
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f.seek(88) # first byte of autoclear_features field
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f.write(b'\xff')
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self.vm_b.launch()
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while True:
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result = self.vm_b.qmp('query-status')
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if result['return']['status'] == 'running':
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break
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with open(disk, 'rb') as f:
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f.seek(88)
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self.assertEqual(f.read(1), b'\x00')
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if __name__ == '__main__':
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iotests.main(supported_fmts=['qcow2'])
+5
tests/qemu-iotests/196.out
+5
tests/qemu-iotests/196.out