xref: /openbmc/qemu/tests/qemu-iotests/020 (revision cd4eb4c5)
1#!/bin/bash
2#
3# Commit changes to backing file
4#
5# Copyright (C) 2009 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`
28tmp=/tmp/$$
29status=1	# failure is the default!
30
31_cleanup()
32{
33	_cleanup_test_img
34    rm -f "$TEST_IMG.base"
35    rm -f "$TEST_IMG.orig"
36}
37trap "_cleanup; exit \$status" 0 1 2 3 15
38
39# get standard environment, filters and checks
40. ./common.rc
41. ./common.filter
42. ./common.pattern
43
44# Any format supporting backing files
45_supported_fmt qcow qcow2 vmdk qed
46_supported_proto generic
47_supported_os Linux
48_unsupported_imgopts "subformat=monolithicFlat" \
49                     "subformat=twoGbMaxExtentFlat" \
50                     "subformat=twoGbMaxExtentSparse"
51
52TEST_OFFSETS="0 4294967296"
53
54_make_test_img 6G
55
56echo "Filling base image"
57echo
58
59for offset in $TEST_OFFSETS; do
60    # Some clusters with alternating backing file/image file reads
61    io writev $(( offset )) 512 1024 64
62
63    # Complete backing clusters
64    io writev $(( offset  + 64 * 1024))  65536 65536 1
65done
66_check_test_img
67
68echo "Creating test image with backing file"
69echo
70
71mv "$TEST_IMG" "$TEST_IMG.base"
72_make_test_img -b "$TEST_IMG.base" 6G
73
74echo "Filling test image"
75echo
76
77for offset in $TEST_OFFSETS; do
78    # Some clusters with alternating backing file/image file reads
79    io writev $(( offset + 512 )) 512 1024 64
80
81    # Complete test image clusters
82    io writev $(( offset + 64 * 1024 + 65536))  65536 65536 1
83done
84_check_test_img
85
86$QEMU_IMG commit "$TEST_IMG"
87mv "$TEST_IMG.base" "$TEST_IMG"
88
89echo "Reading from the backing file"
90echo
91
92for offset in $TEST_OFFSETS; do
93    # Some clusters with alternating backing file/image file reads
94    io readv $(( offset )) 512 1024 64
95    io readv $(( offset + 512 )) 512 1024 64
96
97    # Complete test image clusters
98    io readv $(( offset  + 64 * 1024))  65536 65536 1
99    io readv $(( offset + 64 * 1024 + 65536))  65536 65536 1
100
101    # Empty sectors
102    io_zero readv $(( offset + 64 * 1024 + 65536 * 4 )) 65536 65536 1
103done
104_check_test_img
105
106# success, all done
107echo "*** done"
108rm -f $seq.full
109status=0
110