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 $seq" 26 27status=1 # failure is the default! 28 29MIG_SOCKET="${TEST_DIR}/migrate" 30 31_cleanup() 32{ 33 rm -f "${MIG_SOCKET}" 34 _cleanup_test_img 35 _cleanup_qemu 36} 37trap "_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 50size=64M 51_make_test_img $size 52 53echo 54echo === Starting VMs === 55echo 56 57qemu_comm_method="monitor" 58 59if [ "$IMGOPTSSYNTAX" = "true" ]; then 60 _launch_qemu \ 61 -drive "${TEST_IMG}",cache=${CACHEMODE},id=disk 62else 63 _launch_qemu \ 64 -drive file="${TEST_IMG}",cache=${CACHEMODE},driver=$IMGFMT,id=disk 65fi 66src=$QEMU_HANDLE 67 68if [ "$IMGOPTSSYNTAX" = "true" ]; then 69 _launch_qemu \ 70 -drive "${TEST_IMG}",cache=${CACHEMODE},id=disk \ 71 -incoming "unix:${MIG_SOCKET}" 72else 73 _launch_qemu \ 74 -drive file="${TEST_IMG}",cache=${CACHEMODE},driver=$IMGFMT,id=disk \ 75 -incoming "unix:${MIG_SOCKET}" 76fi 77dest=$QEMU_HANDLE 78 79echo 80echo === Write something on the source === 81echo 82 83silent= 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 89echo 90echo === Do postcopy migration to destination === 91echo 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 96silent=yes 97_send_qemu_cmd $dest 'migrate_set_capability postcopy-ram on' "(qemu)" 98 99qemu_error_no_exit=yes success_or_failure=yes \ 100 _send_qemu_cmd $dest '' "(qemu)" "Postcopy is not supported" 101if [ ${QEMU_STATUS[$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' 109fi 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 116QEMU_COMM_TIMEOUT=1 qemu_cmd_repeat=10 silent=yes \ 117 _send_qemu_cmd $src "info migrate" "completed\|failed" 118silent=yes _send_qemu_cmd $src "" "(qemu)" 119 120echo 121echo === Do some I/O on the destination === 122echo 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 127silent= 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 133echo 134echo === Shut down and check image === 135echo 136 137_send_qemu_cmd $src 'quit' "" 138_send_qemu_cmd $dest 'quit' "" 139wait=1 _cleanup_qemu 140 141_check_test_img 142 143# success, all done 144echo "*** done" 145rm -f $seq.full 146status=0 147