xref: /qemu/tests/qemu-iotests/033 (revision 6402cbbb) 
1#!/bin/bash
2#
3# Test aligned and misaligned write zeroes operations.
4#
5# Copyright (C) 2012 Red Hat, Inc.
6#
7# This program is free software; you can redistribute it and/or modify
8# it under the terms of the GNU General Public License as published by
9# the Free Software Foundation; either version 2 of the License, or
10# (at your option) any later version.
11#
12# This program is distributed in the hope that it will be useful,
13# but WITHOUT ANY WARRANTY; without even the implied warranty of
14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15# GNU General Public License for more details.
16#
17# You should have received a copy of the GNU General Public License
18# along with this program.  If not, see <http://www.gnu.org/licenses/>.
19#
20
21# creator
22owner=pbonzini@redhat.com
23
24seq=`basename $0`
25echo "QA output created by $seq"
26
27here=`pwd`
28status=1	# failure is the default!
29
30_cleanup()
31{
32	_cleanup_test_img
33}
34trap "_cleanup; exit \$status" 0 1 2 3 15
35
36# get standard environment, filters and checks
37. ./common.rc
38. ./common.filter
39
40_supported_fmt generic
41_supported_proto generic
42_supported_os Linux
43
44
45size=128M
46_make_test_img $size
47
48do_test()
49{
50	local align=$1
51	local iocmd=$2
52	local img=$3
53	if [ "$IMGOPTSSYNTAX" = "true" ]
54	then
55	    IO_OPEN_ARG="$img"
56	    IO_EXTRA_ARGS="--image-opts"
57	else
58	    IO_OPEN_ARG="-o driver=$IMGFMT,file.align=$align blkdebug::$img"
59	    IO_EXTRA_ARGS=""
60	fi
61	{
62		echo "open $IO_OPEN_ARG"
63		echo $iocmd
64	} | $QEMU_IO $IO_EXTRA_ARGS
65}
66
67for write_zero_cmd in "write -z" "aio_write -z"; do
68for align in 512 4k; do
69	echo
70	echo "== preparing image =="
71	do_test $align "write -P 0xa 0x200 0x400" "$TEST_IMG" | _filter_qemu_io
72	do_test $align "write -P 0xa 0x20000 0x600" "$TEST_IMG" | _filter_qemu_io
73	do_test $align "$write_zero_cmd 0x400 0x20000" "$TEST_IMG" | _filter_qemu_io
74
75	echo
76	echo "== verifying patterns (1) =="
77	do_test $align "read -P 0xa 0x200 0x200" "$TEST_IMG" | _filter_qemu_io
78	do_test $align "read -P 0x0 0x400 0x20000" "$TEST_IMG" | _filter_qemu_io
79	do_test $align "read -P 0xa 0x20400 0x200" "$TEST_IMG" | _filter_qemu_io
80
81	echo
82	echo "== rewriting zeroes =="
83	do_test $align "write -P 0xb 0x10000 0x10000" "$TEST_IMG" | _filter_qemu_io
84	do_test $align "$write_zero_cmd 0x10000 0x10000" "$TEST_IMG" | _filter_qemu_io
85
86	echo
87	echo "== verifying patterns (2) =="
88	do_test $align "read -P 0x0 0x400 0x20000" "$TEST_IMG" | _filter_qemu_io
89
90	echo
91	echo "== rewriting unaligned zeroes =="
92	do_test $align "write -P 0xb 0x0 0x1000" "$TEST_IMG" | _filter_qemu_io
93	do_test $align "$write_zero_cmd 0x200 0x200" "$TEST_IMG" | _filter_qemu_io
94
95	echo
96	echo "== verifying patterns (3) =="
97	do_test $align "read -P 0xb 0x0 0x200" "$TEST_IMG" | _filter_qemu_io
98	do_test $align "read -P 0x0 0x200 0x200" "$TEST_IMG" | _filter_qemu_io
99	do_test $align "read -P 0xb 0x400 0xc00" "$TEST_IMG" | _filter_qemu_io
100
101	echo
102done
103done
104
105# success, all done
106echo "*** done"
107rm -f $seq.full
108status=0
109