tests/qemu-iotests/181

   1 #!/usr/bin/env 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 $seq"
  26
  27 status=1        # failure is the default!
  28
  29 MIG_SOCKET="${TEST_DIR}/migrate"
  30
  31 _cleanup()
  32 {
  33     rm -f "${MIG_SOCKET}"
  34         _cleanup_test_img
  35     _cleanup_qemu
  36 }
  37 trap "_cleanup; exit \$status" 0 1 2 3 15
  38
  39 # get standard environment, filters and checks
  40 . ./common.rc
  41 . ./common.filter
  42 . ./common.qemu
  43
  44 _supported_fmt generic
  45 # Formats that do not support live migration
  46 _unsupported_fmt qcow vdi vhdx vmdk vpc vvfat parallels
  47 _supported_proto generic
  48 _supported_os Linux
  49
  50 size=64M
  51 _make_test_img $size
  52
  53 echo
  54 echo === Starting VMs ===
  55 echo
  56
  57 qemu_comm_method="monitor"
  58
  59 if [ "$IMGOPTSSYNTAX" = "true" ]; then
  60     _launch_qemu \
  61         -drive "${TEST_IMG}",cache=${CACHEMODE},id=disk
  62 else
  63     _launch_qemu \
  64         -drive file="${TEST_IMG}",cache=${CACHEMODE},driver=$IMGFMT,id=disk
  65 fi
  66 src=$QEMU_HANDLE
  67
  68 if [ "$IMGOPTSSYNTAX" = "true" ]; then
  69     _launch_qemu \
  70         -drive "${TEST_IMG}",cache=${CACHEMODE},id=disk \
  71         -incoming "unix:${MIG_SOCKET}"
  72 else
  73     _launch_qemu \
  74         -drive file="${TEST_IMG}",cache=${CACHEMODE},driver=$IMGFMT,id=disk \
  75         -incoming "unix:${MIG_SOCKET}"
  76 fi
  77 dest=$QEMU_HANDLE
  78
  79 echo
  80 echo === Write something on the source ===
  81 echo
  82
  83 silent=
  84 _send_qemu_cmd $src 'qemu-io disk "write -P 0x55 0 64k"' "(qemu)"
  85 _send_qemu_cmd $src "" "ops/sec"
  86 _send_qemu_cmd $src 'qemu-io disk "read -P 0x55 0 64k"' "(qemu)"
  87 _send_qemu_cmd $src "" "ops/sec"
  88
  89 echo
  90 echo === Do postcopy migration to destination ===
  91 echo
  92
  93 # Slow down migration so much that it definitely won't finish before we can
  94 # switch to postcopy
  95 # Enable postcopy-ram capability both on source and destination
  96 silent=yes
  97 _send_qemu_cmd $dest 'migrate_set_capability postcopy-ram on' "(qemu)"
  98
  99 qemu_error_no_exit=yes success_or_failure=yes \
 100     _send_qemu_cmd $dest '' "(qemu)" "Postcopy is not supported"
 101 if [ ${QEMU_STATUS[$dest]} -lt 0 ]; then
 102     _send_qemu_cmd $dest '' "(qemu)"
 103
 104     _send_qemu_cmd $src 'quit' ""
 105     _send_qemu_cmd $dest 'quit' ""
 106     wait=1 _cleanup_qemu
 107
 108     _notrun 'Postcopy is not supported'
 109 fi
 110
 111 _send_qemu_cmd $src 'migrate_set_speed 4k' "(qemu)"
 112 _send_qemu_cmd $src 'migrate_set_capability postcopy-ram on' "(qemu)"
 113 _send_qemu_cmd $src "migrate -d unix:${MIG_SOCKET}" "(qemu)"
 114 _send_qemu_cmd $src 'migrate_start_postcopy' "(qemu)"
 115
 116 QEMU_COMM_TIMEOUT=1 qemu_cmd_repeat=10 silent=yes \
 117     _send_qemu_cmd $src "info migrate" "completed\|failed"
 118 silent=yes _send_qemu_cmd $src "" "(qemu)"
 119
 120 echo
 121 echo === Do some I/O on the destination ===
 122 echo
 123
 124 # It is important that we use the BlockBackend of the guest device here instead
 125 # of the node name, which would create a new BlockBackend and not test whether
 126 # the guest has the necessary permissions to access the image now
 127 silent=
 128 _send_qemu_cmd $dest 'qemu-io disk "read -P 0x55 0 64k"' "(qemu)"
 129 _send_qemu_cmd $dest "" "ops/sec"
 130 _send_qemu_cmd $dest 'qemu-io disk "write -P 0x66 1M 64k"' "(qemu)"
 131 _send_qemu_cmd $dest "" "ops/sec"
 132
 133 echo
 134 echo === Shut down and check image ===
 135 echo
 136
 137 _send_qemu_cmd $src 'quit' ""
 138 _send_qemu_cmd $dest 'quit' ""
 139 wait=1 _cleanup_qemu
 140
 141 _check_test_img
 142
 143 # success, all done
 144 echo "*** done"
 145 rm -f $seq.full
 146 status=0