tests/qemu-iotests: adding savevm/loadvm with postcopy flag test

#!/bin/bash

#

# Test savevm and loadvm after live migration with postcopy flag

#

# Copyright (C) 2017, IBM Corporation.

#

# This file is derived from tests/qemu-iotests/181 by Kevin Wolf

#

# 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/>.

seq=`basename $0`

echo "QA output created by $seq"

status=1	# failure is the default!

MIG_SOCKET="${TEST_DIR}/migrate"

# get standard environment, filters and checks

. ./common.rc

. ./common.filter

. ./common.qemu

_cleanup()

{

    rm -f "${MIG_SOCKET}"

    _cleanup_test_img

    _cleanup_qemu

}

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

_supported_fmt qcow2

_supported_proto generic

_supported_os Linux

# Internal snapshots are (currently) impossible with refcount_bits=1

# This was taken from test 080

_unsupported_imgopts 'refcount_bits=1[^0-9]'

size=64M

_make_test_img $size

echo

echo === Starting VMs ===

echo

qemu_comm_method="monitor"

if [ "$IMGOPTSSYNTAX" = "true" ]; then

    _launch_qemu \

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

else

    _launch_qemu \

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

fi

src=$QEMU_HANDLE

if [ "$IMGOPTSSYNTAX" = "true" ]; then

    _launch_qemu \

        -drive "${TEST_IMG}",cache=${CACHEMODE},id=disk \

        -incoming "unix:${MIG_SOCKET}"

else

    _launch_qemu \

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

        -incoming "unix:${MIG_SOCKET}"

fi

dest=$QEMU_HANDLE

echo

echo === Set \'migrate_set_capability postcopy-ram on\' and migrate ===

echo

silent=yes

_send_qemu_cmd $dest 'migrate_set_capability postcopy-ram on' "(qemu)"

_send_qemu_cmd $src 'migrate_set_capability postcopy-ram on' "(qemu)"

_send_qemu_cmd $src "migrate -d unix:${MIG_SOCKET}" "(qemu)"

QEMU_COMM_TIMEOUT=1 qemu_cmd_repeat=10 silent=yes \

    _send_qemu_cmd $src "info migrate" "completed\|failed"

silent=yes _send_qemu_cmd $src "" "(qemu)"

echo

echo === Check if migration was successful ===

echo

QEMU_COMM_TIMEOUT=1 silent=yes \

    _send_qemu_cmd $src "info migrate" "completed"

silent=yes _send_qemu_cmd $src "" "(qemu)"

echo

echo === On destination, execute savevm and loadvm ===

echo

silent=

_send_qemu_cmd $dest 'savevm state1' "(qemu)"

_send_qemu_cmd $dest 'loadvm state1' "(qemu)"

echo

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

echo

_send_qemu_cmd $src 'quit' ""

_send_qemu_cmd $dest 'quit' ""

wait=1 _cleanup_qemu

_check_test_img

# success, all done

echo "*** done"

status=0

QA output created by 201

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

=== Starting VMs ===

=== Set 'migrate_set_capability postcopy-ram on' and migrate ===

=== Check if migration was successful ===

=== On destination, execute savevm and loadvm ===

(qemu) savevm state1

(qemu) loadvm state1

=== Shut down and check image ===

(qemu) quit

(qemu) quit

No errors were found on the image.

*** done

197 rw auto quick

198 rw auto

200 rw auto

201 rw auto migration

202 rw auto quick

203 rw auto