tests/qemu-iotests/181

   1 #!/bin/bash
   2 #
   3 # Test postcopy live migration with shared storage
   4 #
   5 # Copyright (C) 2017 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
  22 owner=kwolf@redhat.com
  23
  24 seq=`basename $0`
  25 echo "QA output created by $seq"
  26
  27 here=`pwd`
  28 status=1        # failure is the default!
  29
  30 MIG_SOCKET="${TEST_DIR}/migrate"
  31
  32 _cleanup()
  33 {
  34     rm -f "${MIG_SOCKET}"
  35         _cleanup_test_img
  36     _cleanup_qemu
  37 }
  38 trap "_cleanup; exit \$status" 0 1 2 3 15
  39
  40 # get standard environment, filters and checks
  41 . ./common.rc
  42 . ./common.filter
  43 . ./common.qemu
  44
  45 _supported_fmt generic
  46 _supported_proto generic
  47 _supported_os Linux
  48
  49 size=64M
  50 _make_test_img $size
  51
  52 echo
  53 echo === Starting VMs ===
  54 echo
  55
  56 qemu_comm_method="monitor"
  57
  58 _launch_qemu \
  59     -drive file="${TEST_IMG}",cache=${CACHEMODE},driver=$IMGFMT,id=disk
  60 src=$QEMU_HANDLE
  61
  62 _launch_qemu \
  63     -drive file="${TEST_IMG}",cache=${CACHEMODE},driver=$IMGFMT,id=disk \
  64     -incoming "unix:${MIG_SOCKET}"
  65 dest=$QEMU_HANDLE
  66
  67 echo
  68 echo === Write something on the source ===
  69 echo
  70
  71 silent=
  72 _send_qemu_cmd $src 'qemu-io disk "write -P 0x55 0 64k"' "(qemu)"
  73 _send_qemu_cmd $src "" "ops/sec"
  74 _send_qemu_cmd $src 'qemu-io disk "read -P 0x55 0 64k"' "(qemu)"
  75 _send_qemu_cmd $src "" "ops/sec"
  76
  77 echo
  78 echo === Do postcopy migration to destination ===
  79 echo
  80
  81 # Slow down migration so much that it definitely won't finish before we can
  82 # switch to postcopy
  83 silent=yes
  84 _send_qemu_cmd $src 'migrate_set_speed 4k' "(qemu)"
  85 _send_qemu_cmd $src 'migrate_set_capability postcopy-ram on' "(qemu)"
  86 _send_qemu_cmd $src "migrate -d unix:${MIG_SOCKET}" "(qemu)"
  87 _send_qemu_cmd $src 'migrate_start_postcopy' "(qemu)"
  88
  89 QEMU_COMM_TIMEOUT=1 qemu_cmd_repeat=10 silent=yes \
  90     _send_qemu_cmd $src "info migrate" "completed\|failed"
  91 silent=yes _send_qemu_cmd $src "" "(qemu)"
  92
  93 echo
  94 echo === Do some I/O on the destination ===
  95 echo
  96
  97 # It is important that we use the BlockBackend of the guest device here instead
  98 # of the node name, which would create a new BlockBackend and not test whether
  99 # the guest has the necessary permissions to access the image now
 100 silent=
 101 _send_qemu_cmd $dest 'qemu-io disk "read -P 0x55 0 64k"' "(qemu)"
 102 _send_qemu_cmd $dest "" "ops/sec"
 103 _send_qemu_cmd $dest 'qemu-io disk "write -P 0x66 1M 64k"' "(qemu)"
 104 _send_qemu_cmd $dest "" "ops/sec"
 105
 106 echo
 107 echo === Shut down and check image ===
 108 echo
 109
 110 _send_qemu_cmd $src 'quit' ""
 111 _send_qemu_cmd $dest 'quit' ""
 112 wait=1 _cleanup_qemu
 113
 114 _check_test_img
 115
 116 # success, all done
 117 echo "*** done"
 118 rm -f $seq.full
 119 status=0