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 22owner=kwolf@redhat.com 23 24seq=`basename $0` 25echo "QA output created by $seq" 26 27here=`pwd` 28status=1 # failure is the default! 29 30MIG_SOCKET="${TEST_DIR}/migrate" 31 32_cleanup() 33{ 34 rm -f "${MIG_SOCKET}" 35 _cleanup_test_img 36 _cleanup_qemu 37} 38trap "_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 49size=64M 50_make_test_img $size 51 52echo 53echo === Starting VMs === 54echo 55 56qemu_comm_method="monitor" 57 58_launch_qemu \ 59 -drive file="${TEST_IMG}",cache=${CACHEMODE},driver=$IMGFMT,id=disk 60src=$QEMU_HANDLE 61 62_launch_qemu \ 63 -drive file="${TEST_IMG}",cache=${CACHEMODE},driver=$IMGFMT,id=disk \ 64 -incoming "unix:${MIG_SOCKET}" 65dest=$QEMU_HANDLE 66 67echo 68echo === Write something on the source === 69echo 70 71silent= 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 77echo 78echo === Do postcopy migration to destination === 79echo 80 81# Slow down migration so much that it definitely won't finish before we can 82# switch to postcopy 83silent=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 89QEMU_COMM_TIMEOUT=1 qemu_cmd_repeat=10 silent=yes \ 90 _send_qemu_cmd $src "info migrate" "completed\|failed" 91silent=yes _send_qemu_cmd $src "" "(qemu)" 92 93echo 94echo === Do some I/O on the destination === 95echo 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 100silent= 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 106echo 107echo === Shut down and check image === 108echo 109 110_send_qemu_cmd $src 'quit' "" 111_send_qemu_cmd $dest 'quit' "" 112wait=1 _cleanup_qemu 113 114_check_test_img 115 116# success, all done 117echo "*** done" 118rm -f $seq.full 119status=0 120