Archipelago » qemu

#!/bin/bash

#

# Test bdrv_write_zeroes with backing files

#

# Copyright (C) 2012 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 qcow qcow2 vmdk qed

_supported_proto generic

_supported_os Linux

CLUSTER_SIZE=4k

size=128M

echo

echo "== creating backing file for COW tests =="

_make_test_img $size

$QEMU_IO -c "write -P 0x55 0 1M" $TEST_IMG | _filter_qemu_io

mv $TEST_IMG $TEST_IMG.base

_make_test_img -b $TEST_IMG.base 6G

echo

echo "== zero write with backing file =="

$QEMU_IO -c "write -z 64k 192k" $TEST_IMG | _filter_qemu_io

$QEMU_IO -c "write -z 513k 13k" $TEST_IMG | _filter_qemu_io

_check_test_img

echo

echo "== verifying patterns (3) =="

$QEMU_IO -c "read -P 0x55 0 64k" $TEST_IMG | _filter_qemu_io

$QEMU_IO -c "read -P 0x0 64k 192k" $TEST_IMG | _filter_qemu_io

$QEMU_IO -c "read -P 0x55 256k 257k" $TEST_IMG | _filter_qemu_io

$QEMU_IO -c "read -P 0x0 513k 13k" $TEST_IMG | _filter_qemu_io

$QEMU_IO -c "read -P 0x55 526k 498k" $TEST_IMG | _filter_qemu_io

echo

echo "== overwriting zero cluster =="

$QEMU_IO -c "write -P 0xa 60k 8k" $TEST_IMG | _filter_qemu_io

$QEMU_IO -c "write -P 0xb 64k 8k" $TEST_IMG | _filter_qemu_io

$QEMU_IO -c "write -P 0xc 76k 4k" $TEST_IMG | _filter_qemu_io

$QEMU_IO -c "write -P 0xd 252k 8k" $TEST_IMG | _filter_qemu_io

$QEMU_IO -c "write -P 0xe 248k 8k" $TEST_IMG | _filter_qemu_io

_check_test_img

echo

echo "== verifying patterns (4) =="

$QEMU_IO -c "read -P 0x55 0 60k" $TEST_IMG | _filter_qemu_io

$QEMU_IO -c "read -P 0xa 60k 4k" $TEST_IMG | _filter_qemu_io

$QEMU_IO -c "read -P 0xb 64k 8k" $TEST_IMG | _filter_qemu_io

$QEMU_IO -c "read -P 0x0 72k 4k" $TEST_IMG | _filter_qemu_io

$QEMU_IO -c "read -P 0xc 76k 4k" $TEST_IMG | _filter_qemu_io

$QEMU_IO -c "read -P 0x0 80k 168k" $TEST_IMG | _filter_qemu_io

$QEMU_IO -c "read -P 0xe 248k 8k" $TEST_IMG | _filter_qemu_io

$QEMU_IO -c "read -P 0xd 256k 4k" $TEST_IMG | _filter_qemu_io

$QEMU_IO -c "read -P 0x55 260k 64k" $TEST_IMG | _filter_qemu_io

echo

echo "== re-zeroing overwritten area =="

$QEMU_IO -c "write -z 64k 192k" $TEST_IMG | _filter_qemu_io

_check_test_img

echo

echo "== verifying patterns (5) =="

$QEMU_IO -c "read -P 0x55 0 60k" $TEST_IMG | _filter_qemu_io

$QEMU_IO -c "read -P 0xa 60k 4k" $TEST_IMG | _filter_qemu_io

$QEMU_IO -c "read -P 0x0 64k 192k" $TEST_IMG | _filter_qemu_io

$QEMU_IO -c "read -P 0xd 256k 4k" $TEST_IMG | _filter_qemu_io

$QEMU_IO -c "read -P 0x55 260k 253k" $TEST_IMG | _filter_qemu_io

$QEMU_IO -c "read -P 0x0 513k 13k" $TEST_IMG | _filter_qemu_io

$QEMU_IO -c "read -P 0x55 526k 498k" $TEST_IMG | _filter_qemu_io

# success, all done

echo "*** done"

rm -f $seq.full

status=0