qemu/tests/qemu-iotests/051
Fam Zheng 4db9c98002 qemu-iotests: add test for backing file overriding
Test that backing.file.filename option can be parsed and override the
backing file from image (backing file reflected with "info block").

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-09-25 10:08:56 +02:00

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#!/bin/bash
#
# Test command line configuration of block devices and driver-specific options
#
# Copyright (C) 2013 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`
tmp=/tmp/$$
status=1 # failure is the default!
_cleanup()
{
_cleanup_test_img
}
trap "_cleanup; exit \$status" 0 1 2 3 15
# get standard environment, filters and checks
. ./common.rc
. ./common.filter
_supported_fmt qcow2
_supported_proto file
_supported_os Linux
function do_run_qemu()
{
echo Testing: "$@"
(
if ! test -t 0; then
while read cmd; do
echo $cmd
done
fi
echo quit
) | $QEMU -nographic -monitor stdio -serial none "$@"
echo
}
function run_qemu()
{
do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qemu
}
size=128M
_make_test_img $size
cp $TEST_IMG $TEST_IMG.orig
mv $TEST_IMG $TEST_IMG.base
_make_test_img -b $TEST_IMG.base $size
echo
echo === Unknown option ===
echo
run_qemu -drive file=$TEST_IMG,format=qcow2,unknown_opt=
run_qemu -drive file=$TEST_IMG,format=qcow2,unknown_opt=on
run_qemu -drive file=$TEST_IMG,format=qcow2,unknown_opt=1234
run_qemu -drive file=$TEST_IMG,format=qcow2,unknown_opt=foo
echo
echo === Overriding backing file ===
echo
echo "info block" | run_qemu -drive file=$TEST_IMG,driver=qcow2,backing.file.filename=$TEST_IMG.orig -nodefaults
echo
echo === Enable and disable lazy refcounting on the command line, plus some invalid values ===
echo
run_qemu -drive file=$TEST_IMG,format=qcow2,lazy-refcounts=on
run_qemu -drive file=$TEST_IMG,format=qcow2,lazy-refcounts=off
run_qemu -drive file=$TEST_IMG,format=qcow2,lazy-refcounts=
run_qemu -drive file=$TEST_IMG,format=qcow2,lazy-refcounts=42
run_qemu -drive file=$TEST_IMG,format=qcow2,lazy-refcounts=foo
echo
echo === With version 2 images enabling lazy refcounts must fail ===
echo
_make_test_img -ocompat=0.10 $size
run_qemu -drive file=$TEST_IMG,format=qcow2,lazy-refcounts=on
run_qemu -drive file=$TEST_IMG,format=qcow2,lazy-refcounts=off
echo
echo === No medium ===
echo
run_qemu -drive if=floppy
run_qemu -drive if=ide,media=cdrom
run_qemu -drive if=scsi,media=cdrom
run_qemu -drive if=ide
run_qemu -drive if=virtio
run_qemu -drive if=scsi
run_qemu -drive if=none,id=disk -device ide-cd,drive=disk
run_qemu -drive if=none,id=disk -device lsi53c895a -device scsi-cd,drive=disk
run_qemu -drive if=none,id=disk -device ide-drive,drive=disk
run_qemu -drive if=none,id=disk -device ide-hd,drive=disk
run_qemu -drive if=none,id=disk -device lsi53c895a -device scsi-disk,drive=disk
run_qemu -drive if=none,id=disk -device lsi53c895a -device scsi-hd,drive=disk
echo
echo === Read-only ===
echo
run_qemu -drive file=$TEST_IMG,if=floppy,readonly=on
run_qemu -drive file=$TEST_IMG,if=ide,media=cdrom,readonly=on
run_qemu -drive file=$TEST_IMG,if=scsi,media=cdrom,readonly=on
run_qemu -drive file=$TEST_IMG,if=ide,readonly=on
run_qemu -drive file=$TEST_IMG,if=virtio,readonly=on
run_qemu -drive file=$TEST_IMG,if=scsi,readonly=on
run_qemu -drive file=$TEST_IMG,if=none,id=disk,readonly=on -device ide-cd,drive=disk
run_qemu -drive file=$TEST_IMG,if=none,id=disk,readonly=on -device lsi53c895a -device scsi-cd,drive=disk
run_qemu -drive file=$TEST_IMG,if=none,id=disk,readonly=on -device ide-drive,drive=disk
run_qemu -drive file=$TEST_IMG,if=none,id=disk,readonly=on -device ide-hd,drive=disk
run_qemu -drive file=$TEST_IMG,if=none,id=disk,readonly=on -device lsi53c895a -device scsi-disk,drive=disk
run_qemu -drive file=$TEST_IMG,if=none,id=disk,readonly=on -device lsi53c895a -device scsi-hd,drive=disk
echo
echo === Cache modes ===
echo
# Cannot use the test image because cache=none might not work on the host FS
# Use cdrom so that we won't get errors about missing media
run_qemu -drive media=cdrom,cache=none
run_qemu -drive media=cdrom,cache=directsync
run_qemu -drive media=cdrom,cache=writeback
run_qemu -drive media=cdrom,cache=writethrough
run_qemu -drive media=cdrom,cache=unsafe
run_qemu -drive media=cdrom,cache=invalid_value
echo
echo === Specifying the protocol layer ===
echo
run_qemu -drive file=$TEST_IMG,file.driver=file
run_qemu -drive file=$TEST_IMG,file.driver=qcow2
echo
echo === Parsing protocol from file name ===
echo
# Protocol strings are supposed to be parsed from traditional option strings,
# but not when using driver-specific options. We can distinguish them by the
# error message for non-existing files.
run_qemu -hda foo:bar
run_qemu -drive file=foo:bar
run_qemu -drive file.filename=foo:bar
# success, all done
echo "*** done"
rm -f $seq.full
status=0