The test starts two vms (vm_a, vm_b), create dirty bitmap in the first one, do
several writes to corresponding device and then migrate vm_a to vm_b
with dirty bitmaps.
Signed-off-by: Vladimir Sementsov-Ogievskiy <address@hidden>
---
tests/qemu-iotests/117 | 88 ++++++++++++++++++++++++++++++++++++++++++++++
tests/qemu-iotests/117.out | 5 +++
tests/qemu-iotests/group | 1 +
3 files changed, 94 insertions(+)
create mode 100755 tests/qemu-iotests/117
create mode 100644 tests/qemu-iotests/117.out
diff --git a/tests/qemu-iotests/117 b/tests/qemu-iotests/117
new file mode 100755
index 0000000..61538cf
--- /dev/null
+++ b/tests/qemu-iotests/117
@@ -0,0 +1,88 @@
+#!/usr/bin/env python
+#
+# Tests for dirty bitmaps migration.
+#
+# (C) Vladimir Sementsov-Ogievskiy 2015
+#
+# 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 iotests
+import time
+from iotests import qemu_img
+
+disk_a = os.path.join(iotests.test_dir, 'disk_a')
+disk_b = os.path.join(iotests.test_dir, 'disk_b')
+fifo = os.path.join(iotests.test_dir, 'fifo')
+
+size = 0x40000000 # 1G
+sector_size = 512
+granularity = 0x10000
+regions = [
+ { 'start': 0, 'count': 0x100000 },
+ { 'start': 0x10000000, 'count': 0x20000 },
+ { 'start': 0x39990000, 'count': 0x10000 }
+ ]
+
+regions_in_sectors = [
+ { key: val / sector_size for (key, val) in el.items() } for el in regions]
+
+class TestDirtyBitmapMigration(iotests.QMPTestCase):
+
+ def setUp(self):
+ os.mkfifo(fifo)
+ qemu_img('create', '-f', iotests.imgfmt, disk_a, str(size))
+ qemu_img('create', '-f', iotests.imgfmt, disk_b, str(size))
+ self.vm_a = iotests.VM().add_drive(disk_a)
+ self.vm_b = iotests.VM().add_drive(disk_b)
+ self.vm_b.add_incoming_migration("exec: cat " + fifo)
+ self.vm_a.launch()
+ self.vm_b.launch()
+
+ def tearDown(self):
+ self.vm_a.shutdown()
+ self.vm_b.shutdown()
+ os.remove(disk_a)
+ os.remove(disk_b)
+ os.remove(fifo)
+
+ def test_migration(self):
+ result = self.vm_a.qmp('block-dirty-bitmap-add', node='drive0',
+ name='bitmap', granularity=granularity)
+ self.assert_qmp(result, 'return', {});
+
+ for r in regions:
+ self.vm_a.hmp_qemu_io('drive0',
+ 'write %d %d' % (r['start'], r['count']))
+
+ result = self.vm_a.qmp('query-block-dirty-bitmap', node='drive0',
+ name='bitmap')
+ self.assert_qmp(result, 'return/dirty-regions', regions_in_sectors)
+
+ result = self.vm_a.qmp('migrate-set-capabilities',
+ capabilities=[{'capability': 'dirty-bitmaps',
+ 'state': True}])
+ self.assert_qmp(result, 'return', {})
+ result = self.vm_a.qmp('migrate', uri='exec:cat>' + fifo)
+ while self.vm_a.qmp('query-migrate')['return']['status'] !=
'completed':
+ time.sleep(1)
+
+ result = self.vm_b.qmp('query-block-dirty-bitmap', node='drive0',
+ name='bitmap')
+ self.assert_qmp(result, 'return/dirty-regions', regions_in_sectors);
+
+
+if __name__ == '__main__':
+ iotests.main()
diff --git a/tests/qemu-iotests/117.out b/tests/qemu-iotests/117.out
new file mode 100644
index 0000000..ae1213e
--- /dev/null
+++ b/tests/qemu-iotests/117.out
@@ -0,0 +1,5 @@
+.
+----------------------------------------------------------------------
+Ran 1 tests
+
+OK
diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group
index b4ddf1b..6ad5b55 100644
--- a/tests/qemu-iotests/group
+++ b/tests/qemu-iotests/group
@@ -118,3 +118,4 @@
113 rw auto quick
114 rw auto quick
116 rw auto quick
+117 rw auto quick