xref: /openbmc/qemu/tests/qemu-iotests/204 (revision b097ba37)
1#!/usr/bin/env bash
2#
3# Test corner cases with unusual block geometries
4#
5# Copyright (C) 2016-2018 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=eblake@redhat.com
23
24seq=`basename $0`
25echo "QA output created by $seq"
26
27status=1	# failure is the default!
28
29_cleanup()
30{
31	_cleanup_test_img
32}
33trap "_cleanup; exit \$status" 0 1 2 3 15
34
35# get standard environment, filters and checks
36. ./common.rc
37. ./common.filter
38
39_supported_fmt qcow2
40_supported_proto file
41# This test assumes that discard leaves zero clusters; see test 177 for
42# other tests that also work in older images
43_unsupported_imgopts 'compat=0.10'
44
45CLUSTER_SIZE=1M
46size=128M
47options=driver=blkdebug,image.driver=qcow2
48nested_opts=image.file.driver=file,image.file.filename=$TEST_IMG
49
50echo
51echo "== setting up files =="
52
53TEST_IMG="$TEST_IMG.base" _make_test_img $size
54$QEMU_IO -c "write -P 11 0 $size" "$TEST_IMG.base" | _filter_qemu_io
55_make_test_img -b "$TEST_IMG.base"
56$QEMU_IO -c "write -P 22 0 110M" "$TEST_IMG" | _filter_qemu_io
57
58# Limited to 64k max-transfer
59echo
60echo "== constrained alignment and max-transfer =="
61limits=align=4k,max-transfer=64k
62$QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \
63         -c "write -P 33 1000 128k" -c "read -P 33 1000 128k" | _filter_qemu_io
64
65echo
66echo "== write zero with constrained max-transfer =="
67limits=align=512,max-transfer=64k,opt-write-zero=$CLUSTER_SIZE
68$QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \
69         -c "write -z 8003584 2093056" | _filter_qemu_io
70
71# non-power-of-2 write-zero/discard alignments
72echo
73echo "== non-power-of-2 write zeroes limits =="
74
75limits=align=512,opt-write-zero=15M,max-write-zero=15M,opt-discard=15M,max-discard=15M
76$QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \
77         -c "write -z 32M 32M" | _filter_qemu_io
78
79echo
80echo "== non-power-of-2 discard limits =="
81
82limits=align=512,opt-write-zero=15M,max-write-zero=15M,opt-discard=15M,max-discard=15M
83$QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \
84         -c "discard 80000001 30M" | _filter_qemu_io
85
86echo
87echo "== block status smaller than alignment =="
88limits=align=4k
89$QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \
90	 -c "alloc 1 1" -c "alloc 0x6dffff0 1000" -c "alloc 127m 5P" \
91	 -c map | _filter_qemu_io
92
93echo
94echo "== verify image content =="
95
96verify_io()
97{
98    echo read -P 22 0 1000
99    echo read -P 33 1000 128k
100    echo read -P 22 132072 7871512
101    echo read -P 0 8003584 2093056
102    echo read -P 22 10096640 23457792
103    echo read -P 0 32M 32M
104    echo read -P 22 64M 13M
105    echo read -P 0 77M 29M
106    echo read -P 22 106M 4M
107    echo read -P 11 110M 18M
108}
109
110verify_io | $QEMU_IO -r "$TEST_IMG" | _filter_qemu_io
111$QEMU_IMG map --image-opts "$options,$nested_opts,align=4k" \
112    | _filter_qemu_img_map
113
114_check_test_img
115
116# success, all done
117echo "*** done"
118status=0
119