tests/qemu-iotests/161

   1 #!/bin/bash
   2 #
   3 # Test reopening a backing image after block-stream and block-commit
   4 #
   5 # Copyright (C) 2018 Igalia, S.L.
   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
  22 owner=berto@igalia.com
  23
  24 seq=`basename $0`
  25 echo "QA output created by $seq"
  26
  27 here=`pwd`
  28 status=1        # failure is the default!
  29
  30 _cleanup()
  31 {
  32     _cleanup_test_img
  33     rm -f "$TEST_IMG.base"
  34     rm -f "$TEST_IMG.int"
  35 }
  36 trap "_cleanup; exit \$status" 0 1 2 3 15
  37
  38 # get standard environment, filters and checks
  39 . ./common.rc
  40 . ./common.filter
  41 . ./common.qemu
  42
  43 # Any format implementing BlockDriver.bdrv_change_backing_file
  44 _supported_fmt qcow2 qed
  45 _supported_proto file
  46 _supported_os Linux
  47
  48 IMG_SIZE=1M
  49
  50 # Create the images
  51 TEST_IMG="$TEST_IMG.base" _make_test_img $IMG_SIZE | _filter_imgfmt
  52 TEST_IMG="$TEST_IMG.int" _make_test_img -b "$TEST_IMG.base" | _filter_imgfmt
  53 _make_test_img -b "$TEST_IMG.int" | _filter_imgfmt
  54
  55 # First test: reopen $TEST.IMG changing the detect-zeroes option on
  56 # its backing file ($TEST_IMG.int).
  57 echo
  58 echo "*** Change an option on the backing file"
  59 echo
  60 _launch_qemu -drive if=none,file="${TEST_IMG}"
  61 _send_qemu_cmd $QEMU_HANDLE \
  62     "{ 'execute': 'qmp_capabilities' }" \
  63     'return'
  64
  65 _send_qemu_cmd $QEMU_HANDLE \
  66     "{ 'execute': 'human-monitor-command',
  67        'arguments': { 'command-line':
  68                       'qemu-io none0 \"reopen -o backing.detect-zeroes=on\"' } }" \
  69     "return"
  70
  71 _cleanup_qemu
  72
  73 # Second test: stream $TEST_IMG.base into $TEST_IMG.int and then
  74 # reopen $TEST.IMG changing the detect-zeroes option on its new
  75 # backing file ($TEST_IMG.base).
  76 echo
  77 echo "*** Stream and then change an option on the backing file"
  78 echo
  79 _launch_qemu -drive if=none,file="${TEST_IMG}"
  80 _send_qemu_cmd $QEMU_HANDLE \
  81     "{ 'execute': 'qmp_capabilities' }" \
  82     'return'
  83
  84 _send_qemu_cmd $QEMU_HANDLE \
  85     "{ 'execute': 'block-stream', \
  86        'arguments': { 'device': 'none0',
  87                       'base': '${TEST_IMG}.base' } }" \
  88     'return'
  89
  90 # Wait for block-stream to finish
  91 sleep 0.5
  92
  93 _send_qemu_cmd $QEMU_HANDLE \
  94     "{ 'execute': 'human-monitor-command',
  95        'arguments': { 'command-line':
  96                       'qemu-io none0 \"reopen -o backing.detect-zeroes=on\"' } }" \
  97     "return"
  98
  99 _cleanup_qemu
 100
 101 # Third test: commit $TEST_IMG.int into $TEST_IMG.base and then reopen
 102 # $TEST.IMG changing the detect-zeroes option on its new backing file
 103 # ($TEST_IMG.base).
 104 echo
 105 echo "*** Commit and then change an option on the backing file"
 106 echo
 107 # Create the images again
 108 TEST_IMG="$TEST_IMG.base" _make_test_img $IMG_SIZE | _filter_imgfmt
 109 TEST_IMG="$TEST_IMG.int" _make_test_img -b "$TEST_IMG.base" | _filter_imgfmt
 110 _make_test_img -b "$TEST_IMG.int" | _filter_imgfmt
 111
 112 _launch_qemu -drive if=none,file="${TEST_IMG}"
 113 _send_qemu_cmd $QEMU_HANDLE \
 114     "{ 'execute': 'qmp_capabilities' }" \
 115     'return'
 116
 117 _send_qemu_cmd $QEMU_HANDLE \
 118     "{ 'execute': 'block-commit', \
 119        'arguments': { 'device': 'none0',
 120                       'top': '${TEST_IMG}.int' } }" \
 121     'return'
 122
 123 # Wait for block-commit to finish
 124 sleep 0.5
 125
 126 _send_qemu_cmd $QEMU_HANDLE \
 127     "{ 'execute': 'human-monitor-command',
 128        'arguments': { 'command-line':
 129                       'qemu-io none0 \"reopen -o backing.detect-zeroes=on\"' } }" \
 130     "return"
 131
 132 _cleanup_qemu
 133
 134 # success, all done
 135 echo "*** done"
 136 rm -f $seq.full
 137 status=0