xref: /qemu/tests/qemu-iotests/034 (revision 05a248715cef192336a594afed812871a52efc1f) 
1 #!/usr/bin/env bash
2 # group: rw auto backing quick
3 #
4 # Test bdrv_pwrite_zeroes with backing files (see also 154)
5 #
6 # Copyright (C) 2012 Red Hat, Inc.
7 #
8 # This program is free software; you can redistribute it and/or modify
9 # it under the terms of the GNU General Public License as published by
10 # the Free Software Foundation; either version 2 of the License, or
11 # (at your option) any later version.
12 #
13 # This program is distributed in the hope that it will be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 # GNU General Public License for more details.
17 #
18 # You should have received a copy of the GNU General Public License
19 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
20 #
21 
22 # creator
23 owner=kwolf@redhat.com
24 
25 seq=`basename $0`
26 echo "QA output created by $seq"
27 
28 status=1	# failure is the default!
29 
30 _cleanup()
31 {
32 	_cleanup_test_img
33 }
34 trap "_cleanup; exit \$status" 0 1 2 3 15
35 
36 # get standard environment, filters and checks
37 . ./common.rc
38 . ./common.filter
39 
40 _supported_fmt qcow qcow2 vmdk qed
41 _supported_proto file fuse
42 _supported_os Linux
43 _unsupported_imgopts "subformat=monolithicFlat" \
44                      "subformat=twoGbMaxExtentFlat" \
45                      "subformat=twoGbMaxExtentSparse" \
46                      "subformat=streamOptimized"
47 
48 CLUSTER_SIZE=4k
49 size=128M
50 
51 echo
52 echo "== creating backing file for COW tests =="
53 
54 TEST_IMG_SAVE="$TEST_IMG"
55 TEST_IMG="$TEST_IMG.base"
56 
57 _make_test_img $size
58 $QEMU_IO -c "write -P 0x55 0 1M" "$TEST_IMG" | _filter_qemu_io
59 
60 TEST_IMG="$TEST_IMG_SAVE"
61 
62 _make_test_img -b "$TEST_IMG.base" -F $IMGFMT 6G
63 
64 echo
65 echo "== zero write with backing file =="
66 $QEMU_IO -c "write -z 64k 192k" "$TEST_IMG" | _filter_qemu_io
67 $QEMU_IO -c "write -z 513k 13k" "$TEST_IMG" | _filter_qemu_io
68 
69 _check_test_img
70 
71 echo
72 echo "== verifying patterns (3) =="
73 $QEMU_IO -c "read -P 0x55 0 64k" "$TEST_IMG" | _filter_qemu_io
74 $QEMU_IO -c "read -P 0x0 64k 192k" "$TEST_IMG" | _filter_qemu_io
75 $QEMU_IO -c "read -P 0x55 256k 257k" "$TEST_IMG" | _filter_qemu_io
76 $QEMU_IO -c "read -P 0x0 513k 13k" "$TEST_IMG" | _filter_qemu_io
77 $QEMU_IO -c "read -P 0x55 526k 498k" "$TEST_IMG" | _filter_qemu_io
78 
79 echo
80 echo "== overwriting zero cluster =="
81 $QEMU_IO -c "write -P 0xa 60k 8k" "$TEST_IMG" | _filter_qemu_io
82 $QEMU_IO -c "write -P 0xb 64k 8k" "$TEST_IMG" | _filter_qemu_io
83 $QEMU_IO -c "write -P 0xc 76k 4k" "$TEST_IMG" | _filter_qemu_io
84 $QEMU_IO -c "write -P 0xd 252k 8k" "$TEST_IMG" | _filter_qemu_io
85 $QEMU_IO -c "write -P 0xe 248k 8k" "$TEST_IMG" | _filter_qemu_io
86 
87 _check_test_img
88 
89 echo
90 echo "== verifying patterns (4) =="
91 $QEMU_IO -c "read -P 0x55 0 60k" "$TEST_IMG" | _filter_qemu_io
92 $QEMU_IO -c "read -P 0xa 60k 4k" "$TEST_IMG" | _filter_qemu_io
93 $QEMU_IO -c "read -P 0xb 64k 8k" "$TEST_IMG" | _filter_qemu_io
94 $QEMU_IO -c "read -P 0x0 72k 4k" "$TEST_IMG" | _filter_qemu_io
95 $QEMU_IO -c "read -P 0xc 76k 4k" "$TEST_IMG" | _filter_qemu_io
96 $QEMU_IO -c "read -P 0x0 80k 168k" "$TEST_IMG" | _filter_qemu_io
97 $QEMU_IO -c "read -P 0xe 248k 8k" "$TEST_IMG" | _filter_qemu_io
98 $QEMU_IO -c "read -P 0xd 256k 4k" "$TEST_IMG" | _filter_qemu_io
99 $QEMU_IO -c "read -P 0x55 260k 64k" "$TEST_IMG" | _filter_qemu_io
100 
101 echo
102 echo "== re-zeroing overwritten area =="
103 $QEMU_IO -c "write -z 64k 192k" "$TEST_IMG" | _filter_qemu_io
104 
105 _check_test_img
106 
107 echo
108 echo "== verifying patterns (5) =="
109 $QEMU_IO -c "read -P 0x55 0 60k" "$TEST_IMG" | _filter_qemu_io
110 $QEMU_IO -c "read -P 0xa 60k 4k" "$TEST_IMG" | _filter_qemu_io
111 $QEMU_IO -c "read -P 0x0 64k 192k" "$TEST_IMG" | _filter_qemu_io
112 $QEMU_IO -c "read -P 0xd 256k 4k" "$TEST_IMG" | _filter_qemu_io
113 $QEMU_IO -c "read -P 0x55 260k 253k" "$TEST_IMG" | _filter_qemu_io
114 $QEMU_IO -c "read -P 0x0 513k 13k" "$TEST_IMG" | _filter_qemu_io
115 $QEMU_IO -c "read -P 0x55 526k 498k" "$TEST_IMG" | _filter_qemu_io
116 
117 # success, all done
118 echo "*** done"
119 rm -f $seq.full
120 status=0
121