qemu-iotests: Block migration test

#!/bin/bash

#

# Test old-style block migration (migrate -b)

#

# Copyright (C) 2017 Red Hat, Inc.

#

# 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/>.

#

# creator

owner=kwolf@redhat.com

seq=`basename $0`

echo "QA output created by $seq"

here=`pwd`

status=1 # failure is the default!

MIG_SOCKET="${TEST_DIR}/migrate"

_cleanup()

{

    rm -f "${MIG_SOCKET}"

    rm -f "${TEST_IMG}.dest"

    _cleanup_test_img

    _cleanup_qemu

}

trap "_cleanup; exit \$status" 0 1 2 3 15

# get standard environment, filters and checks

. ./common.rc

. ./common.filter

. ./common.qemu

_supported_fmt qcow2 raw qed dmg quorum

_supported_proto file

_supported_os Linux

size=64M

_make_test_img $size

TEST_IMG="${TEST_IMG}.dest" _make_test_img $size

echo

echo === Starting VMs ===

echo

qemu_comm_method="qmp"

_launch_qemu \

    -drive file="${TEST_IMG}",cache=$CACHEMODE,driver=$IMGFMT,id=disk

src=$QEMU_HANDLE

_send_qemu_cmd $src "{ 'execute': 'qmp_capabilities' }" 'return'

_launch_qemu \

    -drive file="${TEST_IMG}.dest",cache=$CACHEMODE,driver=$IMGFMT,id=disk \

    -incoming "unix:${MIG_SOCKET}"

dest=$QEMU_HANDLE

_send_qemu_cmd $dest "{ 'execute': 'qmp_capabilities' }" 'return'

echo

echo === Write something on the source ===

echo

_send_qemu_cmd $src \

    "{ 'execute': 'human-monitor-command',

       'arguments': { 'command-line':

                      'qemu-io disk \"write -P 0x55 0 64k\"' } }" \

    'return'

_send_qemu_cmd $src \

    "{ 'execute': 'human-monitor-command',

       'arguments': { 'command-line':

                      'qemu-io disk \"read -P 0x55 0 64k\"' } }" \

    'return'

echo

echo === Do block migration to destination ===

echo

reply="$(_send_qemu_cmd $src \

    "{ 'execute': 'migrate',

       'arguments': { 'uri': 'unix:${MIG_SOCKET}', 'blk': true } }" \

    'return\|error')"

echo "$reply"

if echo "$reply" | grep "compiled without old-style" > /dev/null; then

    _notrun "migrate -b support not compiled in"

fi

QEMU_COMM_TIMEOUT=0.1 qemu_cmd_repeat=50 silent=yes \

    _send_qemu_cmd $src "{ 'execute': 'query-migrate' }" '"status": "completed"'

_send_qemu_cmd $src "{ 'execute': 'query-status' }" "return"

echo

echo === Do some I/O on the destination ===

echo

# It is important that we use the BlockBackend of the guest device here instead

# of the node name, which would create a new BlockBackend and not test whether

# the guest has the necessary permissions to access the image now

silent=yes _send_qemu_cmd $dest "" "100 %"

_send_qemu_cmd $dest "{ 'execute': 'query-status' }" "return"

_send_qemu_cmd $dest \

    "{ 'execute': 'human-monitor-command',

       'arguments': { 'command-line':

                      'qemu-io disk \"read -P 0x55 0 64k\"' } }" \

    'return'

_send_qemu_cmd $dest \

    "{ 'execute': 'human-monitor-command',

       'arguments': { 'command-line':

                      'qemu-io disk \"write -P 0x66 1M 64k\"' } }" \

    'return'

echo

echo === Shut down and check image ===

echo

_send_qemu_cmd $src '{"execute":"quit"}' 'return'

_send_qemu_cmd $dest '{"execute":"quit"}' 'return'

wait=1 _cleanup_qemu

_check_test_img

TEST_IMG="${TEST_IMG}.dest" _check_test_img

$QEMU_IO -c 'write -P 0x66 1M 64k' "$TEST_IMG" | _filter_qemu_io

$QEMU_IMG compare "$TEST_IMG.dest" "$TEST_IMG"

# success, all done

echo "*** done"

rm -f $seq.full

status=0

QA output created by 183

Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864

Formatting 'TEST_DIR/t.IMGFMT.dest', fmt=IMGFMT size=67108864

=== Starting VMs ===

{"return": {}}

{"return": {}}

=== Write something on the source ===

wrote 65536/65536 bytes at offset 0

64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

{"return": ""}

read 65536/65536 bytes at offset 0

64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

{"return": ""}

=== Do block migration to destination ===

{"return": {}}

{"return": {"status": "postmigrate", "singlestep": false, "running": false}}

=== Do some I/O on the destination ===

{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "RESUME"}

{"return": {"status": "running", "singlestep": false, "running": true}}

read 65536/65536 bytes at offset 0

64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

{"return": ""}

wrote 65536/65536 bytes at offset 1048576

64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

{"return": ""}

=== Shut down and check image ===

{"return": {}}

{"return": {}}

{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "SHUTDOWN", "data": {"guest": false}}

{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "SHUTDOWN", "data": {"guest": false}}

No errors were found on the image.

No errors were found on the image.

wrote 65536/65536 bytes at offset 1048576

64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

Images are identical.

*** done

179 rw auto quick

181 rw auto migration

182 rw auto quick

183 rw auto migration