tests/qemu-iotests/267

   1 #!/usr/bin/env bash
   2 # group: rw auto quick snapshot
   3 #
   4 # Test which nodes are involved in internal snapshots
   5 #
   6 # Copyright (C) 2019 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 $seq"
  27
  28 status=1        # failure is the default!
  29
  30 _cleanup()
  31 {
  32     _cleanup_test_img
  33     rm -f "$SOCK_DIR/nbd"
  34 }
  35 trap "_cleanup; exit \$status" 0 1 2 3 15
  36
  37 # get standard environment, filters and checks
  38 . ./common.rc
  39 . ./common.filter
  40
  41 _supported_fmt qcow2
  42 _supported_proto file
  43 _supported_os Linux
  44 _require_drivers copy-on-read
  45
  46 # Internal snapshots are (currently) impossible with refcount_bits=1,
  47 # and generally impossible with external data files
  48 _unsupported_imgopts 'refcount_bits=1[^0-9]' data_file
  49
  50 _require_devices virtio-blk
  51
  52 do_run_qemu()
  53 {
  54     echo Testing: "$@"
  55     (
  56         if ! test -t 0; then
  57             while read cmd; do
  58                 echo $cmd
  59             done
  60         fi
  61         echo quit
  62     ) | $QEMU -nographic -monitor stdio -nodefaults "$@"
  63     echo
  64 }
  65
  66 run_qemu()
  67 {
  68     do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qemu | _filter_hmp |
  69         _filter_generated_node_ids | _filter_imgfmt | _filter_vmstate_size
  70 }
  71
  72 size=128M
  73
  74 run_test()
  75 {
  76     if [ -n "$BACKING_FILE" ]; then
  77         _make_test_img -b "$BACKING_FILE" -F $IMGFMT $size
  78     else
  79         _make_test_img $size
  80     fi
  81     printf "savevm snap0\ninfo snapshots\nloadvm snap0\n" | run_qemu "$@" | _filter_date
  82 }
  83
  84
  85 echo
  86 echo "=== No block devices at all ==="
  87 echo
  88
  89 run_test
  90
  91 echo
  92 echo "=== -drive if=none ==="
  93 echo
  94
  95 run_test -drive driver=file,file="$TEST_IMG",if=none
  96 run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=none
  97 run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=none -device virtio-blk,drive=none0
  98
  99 echo
 100 echo "=== -drive if=virtio ==="
 101 echo
 102
 103 run_test -drive driver=file,file="$TEST_IMG",if=virtio
 104 run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=virtio
 105
 106 echo
 107 echo "=== Simple -blockdev ==="
 108 echo
 109
 110 run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file
 111 run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \
 112          -blockdev driver=$IMGFMT,file=file,node-name=fmt
 113 run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \
 114          -blockdev driver=raw,file=file,node-name=raw \
 115          -blockdev driver=$IMGFMT,file=raw,node-name=fmt
 116
 117 echo
 118 echo "=== -blockdev with a filter on top ==="
 119 echo
 120
 121 run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \
 122          -blockdev driver=$IMGFMT,file=file,node-name=fmt \
 123          -blockdev driver=copy-on-read,file=fmt,node-name=filter
 124
 125 echo
 126 echo "=== -blockdev with a backing file ==="
 127 echo
 128
 129 TEST_IMG="$TEST_IMG.base" _make_test_img $size
 130
 131 BACKING_FILE="$TEST_IMG.base" \
 132 run_test -blockdev driver=file,filename="$TEST_IMG.base",node-name=backing-file \
 133          -blockdev driver=file,filename="$TEST_IMG",node-name=file \
 134          -blockdev driver=$IMGFMT,file=file,backing=backing-file,node-name=fmt
 135
 136 BACKING_FILE="$TEST_IMG.base" \
 137 run_test -blockdev driver=file,filename="$TEST_IMG.base",node-name=backing-file \
 138          -blockdev driver=$IMGFMT,file=backing-file,node-name=backing-fmt \
 139          -blockdev driver=file,filename="$TEST_IMG",node-name=file \
 140          -blockdev driver=$IMGFMT,file=file,backing=backing-fmt,node-name=fmt
 141
 142 # A snapshot should be present on the overlay, but not the backing file
 143 echo Internal snapshots on overlay:
 144 $QEMU_IMG snapshot -l "$TEST_IMG" | _filter_date | _filter_vmstate_size
 145
 146 echo Internal snapshots on backing file:
 147 $QEMU_IMG snapshot -l "$TEST_IMG.base" | _filter_date | _filter_vmstate_size
 148
 149 echo
 150 echo "=== -blockdev with NBD server on the backing file ==="
 151 echo
 152
 153 _make_test_img -b "$TEST_IMG.base" -F $IMGFMT $size
 154 cat <<EOF |
 155 nbd_server_start unix:$SOCK_DIR/nbd
 156 nbd_server_add -w backing-fmt
 157 savevm snap0
 158 info snapshots
 159 loadvm snap0
 160 EOF
 161 run_qemu -blockdev driver=file,filename="$TEST_IMG.base",node-name=backing-file \
 162          -blockdev driver=$IMGFMT,file=backing-file,node-name=backing-fmt \
 163          -blockdev driver=file,filename="$TEST_IMG",node-name=file \
 164          -blockdev driver=$IMGFMT,file=file,backing=backing-fmt,node-name=fmt |
 165          _filter_date
 166
 167 # This time, a snapshot should be created on both files
 168 echo Internal snapshots on overlay:
 169 $QEMU_IMG snapshot -l "$TEST_IMG" | _filter_date | _filter_vmstate_size
 170
 171 echo Internal snapshots on backing file:
 172 $QEMU_IMG snapshot -l "$TEST_IMG.base" | _filter_date | _filter_vmstate_size
 173
 174 # success, all done
 175 echo "*** done"
 176 rm -f $seq.full
 177 status=0