xref: /openbmc/qemu/tests/qemu-iotests/154 (revision 2d7fedeb) 
1#!/bin/bash
2#
3# qcow2 specific bdrv_write_zeroes tests with backing files (complements 034)
4#
5# Copyright (C) 2016 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=kwolf@redhat.com
23
24seq=`basename $0`
25echo "QA output created by $seq"
26
27here=`pwd`
28status=1	# failure is the default!
29
30_cleanup()
31{
32	_cleanup_test_img
33}
34trap "_cleanup; exit \$status" 0 1 2 3 15
35
36# get standard environment, filters and checks
37. ./common.rc
38. ./common.filter
39
40_supported_fmt qcow2
41_supported_proto file
42_supported_os Linux
43
44CLUSTER_SIZE=4k
45size=128M
46
47echo
48echo == backing file contains zeros ==
49
50CLUSTER_SIZE=512 TEST_IMG="$TEST_IMG.base" _make_test_img $size
51_make_test_img -b "$TEST_IMG.base"
52
53# Make sure that the whole cluster is allocated even for partial write_zeroes
54# when the backing file contains zeros
55
56# X = non-zero data sector in backing file
57# - = sector unallocated in whole backing chain
58# 0 = sector touched by write_zeroes request
59
60# 1. Tail unaligned:    00 00 -- --
61# 2. Head unaligned:    -- -- 00 00
62# 3. Both unaligned:    -- 00 00 --
63# 4. Both, 2 clusters:  -- -- -- 00 | 00 -- -- --
64
65$QEMU_IO -c "write -z 0 2k" "$TEST_IMG" | _filter_qemu_io
66$QEMU_IO -c "write -z 10k 2k" "$TEST_IMG" | _filter_qemu_io
67$QEMU_IO -c "write -z 17k 2k" "$TEST_IMG" | _filter_qemu_io
68$QEMU_IO -c "write -z 27k 2k" "$TEST_IMG" | _filter_qemu_io
69$QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
70
71echo
72echo == backing file contains non-zero data before write_zeroes ==
73
74CLUSTER_SIZE=512 TEST_IMG="$TEST_IMG.base" _make_test_img $size
75_make_test_img -b "$TEST_IMG.base"
76
77# Single cluster; non-zero data at the cluster start
78# ... | XX -- 00 -- | ...
79$QEMU_IO -c "write -P 0x11 32k 1k" "$TEST_IMG.base" | _filter_qemu_io
80$QEMU_IO -c "write -z 34k 1k" "$TEST_IMG" | _filter_qemu_io
81$QEMU_IO -c "read -P 0x11 32k 1k" "$TEST_IMG" | _filter_qemu_io
82$QEMU_IO -c "read -P 0 33k 3k" "$TEST_IMG" | _filter_qemu_io
83
84# Single cluster; non-zero data exists, but not at the cluster start
85# ... | -- XX 00 -- | ...
86$QEMU_IO -c "write -P 0x11 65k 1k" "$TEST_IMG.base" | _filter_qemu_io
87$QEMU_IO -c "write -z 66k 1k" "$TEST_IMG" | _filter_qemu_io
88$QEMU_IO -c "read -P 0x11 65k 1k" "$TEST_IMG" | _filter_qemu_io
89$QEMU_IO -c "read -P 0 64k 1k" "$TEST_IMG" | _filter_qemu_io
90$QEMU_IO -c "read -P 0 66k 2k" "$TEST_IMG" | _filter_qemu_io
91
92$QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
93
94echo
95echo == backing file contains non-zero data after write_zeroes ==
96
97CLUSTER_SIZE=512 TEST_IMG="$TEST_IMG.base" _make_test_img $size
98_make_test_img -b "$TEST_IMG.base"
99
100# Single cluster; non-zero data directly after request
101# ... | -- 00 XX -- | ...
102$QEMU_IO -c "write -P 0x11 34k 1k" "$TEST_IMG.base" | _filter_qemu_io
103$QEMU_IO -c "write -z 33k 1k" "$TEST_IMG" | _filter_qemu_io
104$QEMU_IO -c "read -P 0 32k 2k" "$TEST_IMG" | _filter_qemu_io
105$QEMU_IO -c "read -P 0x11 34k 1k" "$TEST_IMG" | _filter_qemu_io
106$QEMU_IO -c "read -P 0 35k 1k" "$TEST_IMG" | _filter_qemu_io
107
108# Single cluster; non-zero data exists, but not directly after request
109# ... | -- 00 -- XX | ...
110$QEMU_IO -c "write -P 0x11 43k 1k" "$TEST_IMG.base" | _filter_qemu_io
111$QEMU_IO -c "write -z 41k 1k" "$TEST_IMG" | _filter_qemu_io
112$QEMU_IO -c "read -P 0x11 43k 1k" "$TEST_IMG" | _filter_qemu_io
113$QEMU_IO -c "read -P 0 40k 3k" "$TEST_IMG" | _filter_qemu_io
114
115$QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
116
117echo
118echo == spanning two clusters, non-zero before request ==
119
120CLUSTER_SIZE=512 TEST_IMG="$TEST_IMG.base" _make_test_img $size
121_make_test_img -b "$TEST_IMG.base"
122
123# Two clusters; non-zero data before request:
124# 1. At cluster start:          32k: XX -- -- 00 | 00 -- -- --
125# 2. Between unallocated space: 48k: -- XX -- 00 | 00 -- -- --
126# 3. Directly before request:   64k: -- -- XX 00 | 00 -- -- --
127
128$QEMU_IO -c "write -P 0x11 32k 1k" "$TEST_IMG.base" | _filter_qemu_io
129$QEMU_IO -c "write -z 35k 2k" "$TEST_IMG" | _filter_qemu_io
130$QEMU_IO -c "read -P 0x11 32k 1k" "$TEST_IMG" | _filter_qemu_io
131$QEMU_IO -c "read -P 0 33k 7k" "$TEST_IMG" | _filter_qemu_io
132
133$QEMU_IO -c "write -P 0x11 49k 1k" "$TEST_IMG.base" | _filter_qemu_io
134$QEMU_IO -c "write -z 51k 2k" "$TEST_IMG" | _filter_qemu_io
135$QEMU_IO -c "read -P 0 48k 1k" "$TEST_IMG" | _filter_qemu_io
136$QEMU_IO -c "read -P 0x11 49k 1k" "$TEST_IMG" | _filter_qemu_io
137$QEMU_IO -c "read -P 0 50k 6k" "$TEST_IMG" | _filter_qemu_io
138
139$QEMU_IO -c "write -P 0x11 66k 1k" "$TEST_IMG.base" | _filter_qemu_io
140$QEMU_IO -c "write -z 67k 2k" "$TEST_IMG" | _filter_qemu_io
141$QEMU_IO -c "read -P 0 64k 2k" "$TEST_IMG" | _filter_qemu_io
142$QEMU_IO -c "read -P 0x11 66k 1k" "$TEST_IMG" | _filter_qemu_io
143$QEMU_IO -c "read -P 0 67k 5k" "$TEST_IMG" | _filter_qemu_io
144
145$QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
146
147echo
148echo == spanning two clusters, non-zero after request ==
149
150CLUSTER_SIZE=512 TEST_IMG="$TEST_IMG.base" _make_test_img $size
151_make_test_img -b "$TEST_IMG.base"
152
153# Two clusters; non-zero data after request:
154# 1. Directly after request:    32k: -- -- -- 00 | 00 XX -- --
155# 2. Between unallocated space: 48k: -- -- -- 00 | 00 -- XX --
156# 3. At cluster end:            64k: -- -- -- 00 | 00 -- -- XX
157
158$QEMU_IO -c "write -P 0x11 37k 1k" "$TEST_IMG.base" | _filter_qemu_io
159$QEMU_IO -c "write -z 35k 2k" "$TEST_IMG" | _filter_qemu_io
160$QEMU_IO -c "read -P 0 32k 5k" "$TEST_IMG" | _filter_qemu_io
161$QEMU_IO -c "read -P 0x11 37k 1k" "$TEST_IMG" | _filter_qemu_io
162$QEMU_IO -c "read -P 0 38k 2k" "$TEST_IMG" | _filter_qemu_io
163
164$QEMU_IO -c "write -P 0x11 54k 1k" "$TEST_IMG.base" | _filter_qemu_io
165$QEMU_IO -c "write -z 51k 2k" "$TEST_IMG" | _filter_qemu_io
166$QEMU_IO -c "read -P 0 48k 6k" "$TEST_IMG" | _filter_qemu_io
167$QEMU_IO -c "read -P 0x11 54k 1k" "$TEST_IMG" | _filter_qemu_io
168$QEMU_IO -c "read -P 0 55k 1k" "$TEST_IMG" | _filter_qemu_io
169
170$QEMU_IO -c "write -P 0x11 71k 1k" "$TEST_IMG.base" | _filter_qemu_io
171$QEMU_IO -c "write -z 67k 2k" "$TEST_IMG" | _filter_qemu_io
172$QEMU_IO -c "read -P 0 64k 7k" "$TEST_IMG" | _filter_qemu_io
173$QEMU_IO -c "read -P 0x11 71k 1k" "$TEST_IMG" | _filter_qemu_io
174
175$QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
176
177echo
178echo == spanning two clusters, partially overwriting backing file ==
179
180CLUSTER_SIZE=512 TEST_IMG="$TEST_IMG.base" _make_test_img $size
181_make_test_img -b "$TEST_IMG.base"
182
183# Backing file: -- -- XX XX | XX XX -- --
184# Active layer: -- -- XX 00 | 00 XX -- --
185
186$QEMU_IO -c "write -P 0x11 2k 4k" "$TEST_IMG.base" | _filter_qemu_io
187$QEMU_IO -c "write -z 3k 2k" "$TEST_IMG" | _filter_qemu_io
188$QEMU_IO -c "read -P 0 0k 2k" "$TEST_IMG" | _filter_qemu_io
189$QEMU_IO -c "read -P 0x11 2k 1k" "$TEST_IMG" | _filter_qemu_io
190$QEMU_IO -c "read -P 0 3k 2k" "$TEST_IMG" | _filter_qemu_io
191$QEMU_IO -c "read -P 0x11 5k 1k" "$TEST_IMG" | _filter_qemu_io
192$QEMU_IO -c "read -P 0 6k 2k" "$TEST_IMG" | _filter_qemu_io
193
194$QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
195
196echo
197echo == spanning multiple clusters, non-zero in first cluster ==
198
199CLUSTER_SIZE=512 TEST_IMG="$TEST_IMG.base" _make_test_img $size
200_make_test_img -b "$TEST_IMG.base"
201
202# Backing file: 64k: XX XX -- -- | -- -- -- -- | -- -- -- --
203# Active layer: 64k: XX XX 00 00 | 00 00 00 00 | 00 -- -- --
204
205$QEMU_IO -c "write -P 0x11 64k 2k" "$TEST_IMG.base" | _filter_qemu_io
206$QEMU_IO -c "write -z 66k 7k" "$TEST_IMG" | _filter_qemu_io
207$QEMU_IO -c "read -P 0x11 64k 2k" "$TEST_IMG" | _filter_qemu_io
208$QEMU_IO -c "read -P 0 66k 10k" "$TEST_IMG" | _filter_qemu_io
209
210$QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
211
212echo
213echo == spanning multiple clusters, non-zero in intermediate cluster ==
214
215CLUSTER_SIZE=512 TEST_IMG="$TEST_IMG.base" _make_test_img $size
216_make_test_img -b "$TEST_IMG.base"
217
218# Backing file: 64k: -- -- -- -- | -- XX XX -- | -- -- -- --
219# Active layer: 64k: -- -- 00 00 | 00 00 00 00 | 00 -- -- --
220
221$QEMU_IO -c "write -P 0x11 69k 2k" "$TEST_IMG.base" | _filter_qemu_io
222$QEMU_IO -c "write -z 66k 7k" "$TEST_IMG" | _filter_qemu_io
223$QEMU_IO -c "read -P 0 64k 12k" "$TEST_IMG" | _filter_qemu_io
224
225$QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
226
227echo
228echo == spanning multiple clusters, non-zero in final cluster ==
229
230CLUSTER_SIZE=512 TEST_IMG="$TEST_IMG.base" _make_test_img $size
231_make_test_img -b "$TEST_IMG.base"
232
233# Backing file: 64k: -- -- -- -- | -- -- -- -- | -- -- XX XX
234# Active layer: 64k: -- -- 00 00 | 00 00 00 00 | 00 -- XX XX
235
236$QEMU_IO -c "write -P 0x11 74k 2k" "$TEST_IMG.base" | _filter_qemu_io
237$QEMU_IO -c "write -z 66k 7k" "$TEST_IMG" | _filter_qemu_io
238$QEMU_IO -c "read -P 0 64k 10k" "$TEST_IMG" | _filter_qemu_io
239$QEMU_IO -c "read -P 0x11 74k 2k" "$TEST_IMG" | _filter_qemu_io
240
241$QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
242
243echo
244echo == spanning multiple clusters, partially overwriting backing file ==
245
246CLUSTER_SIZE=512 TEST_IMG="$TEST_IMG.base" _make_test_img $size
247_make_test_img -b "$TEST_IMG.base"
248
249# Backing file: 64k: -- XX XX XX | XX XX XX XX | XX XX XX --
250# Active layer: 64k: -- XX 00 00 | 00 00 00 00 | 00 XX XX --
251
252$QEMU_IO -c "write -P 0x11 65k 10k" "$TEST_IMG.base" | _filter_qemu_io
253$QEMU_IO -c "write -z 66k 7k" "$TEST_IMG" | _filter_qemu_io
254$QEMU_IO -c "read -P 0 64k 1k" "$TEST_IMG" | _filter_qemu_io
255$QEMU_IO -c "read -P 0x11 65k 1k" "$TEST_IMG" | _filter_qemu_io
256$QEMU_IO -c "read -P 0 66k 7k" "$TEST_IMG" | _filter_qemu_io
257$QEMU_IO -c "read -P 0x11 73k 2k" "$TEST_IMG" | _filter_qemu_io
258$QEMU_IO -c "read -P 0 75k 1k" "$TEST_IMG" | _filter_qemu_io
259
260$QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
261
262# success, all done
263echo "*** done"
264rm -f $seq.full
265status=0
266