1#!/usr/bin/env bash
2# group: rw auto migration quick
3#
4# Test postcopy live migration with shared storage
5#
6# Copyright (C) 2017 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
23owner=kwolf@redhat.com
24
25seq=`basename $0`
26echo "QA output created by $seq"
27
28status=1	# failure is the default!
29
30MIG_SOCKET="${SOCK_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# Formats that do not support live migration
47_unsupported_fmt qcow vdi vhdx vmdk vpc vvfat parallels
48_supported_proto generic
49_supported_os Linux
50
51size=64M
52_make_test_img $size
53
54echo
55echo === Starting VMs ===
56echo
57
58qemu_comm_method="monitor"
59
60if [ "$IMGOPTSSYNTAX" = "true" ]; then
61    _launch_qemu \
62        -drive "${TEST_IMG}",cache=${CACHEMODE},aio=$AIOMODE,id=disk
63else
64    _launch_qemu \
65        -drive file="${TEST_IMG}",cache=${CACHEMODE},aio=$AIOMODE,driver=$IMGFMT,id=disk
66fi
67src=$QEMU_HANDLE
68
69if [ "$IMGOPTSSYNTAX" = "true" ]; then
70    _launch_qemu \
71        -drive "${TEST_IMG}",cache=${CACHEMODE},aio=$AIOMODE,id=disk \
72        -incoming "unix:${MIG_SOCKET}"
73else
74    _launch_qemu \
75        -drive file="${TEST_IMG}",cache=${CACHEMODE},aio=$AIOMODE,driver=$IMGFMT,id=disk \
76        -incoming "unix:${MIG_SOCKET}"
77fi
78dest=$QEMU_HANDLE
79
80echo
81echo === Write something on the source ===
82echo
83
84silent=
85_send_qemu_cmd $src 'qemu-io disk "write -P 0x55 0 64k"' "(qemu)"
86_send_qemu_cmd $src "" "ops/sec"
87_send_qemu_cmd $src 'qemu-io disk "read -P 0x55 0 64k"' "(qemu)"
88_send_qemu_cmd $src "" "ops/sec"
89
90echo
91echo === Do postcopy migration to destination ===
92echo
93
94# Slow down migration so much that it definitely won't finish before we can
95# switch to postcopy
96# Enable postcopy-ram capability both on source and destination
97silent=yes
98_send_qemu_cmd $dest 'migrate_set_capability postcopy-ram on' "(qemu)"
99
100qemu_error_no_exit=yes success_or_failure=yes \
101    _send_qemu_cmd $dest '' "(qemu)" "Postcopy is not supported"
102if [ ${QEMU_STATUS[$dest]} -lt 0 ]; then
103    _send_qemu_cmd $dest '' "(qemu)"
104
105    _send_qemu_cmd $src 'quit' ""
106    _send_qemu_cmd $dest 'quit' ""
107    wait=1 _cleanup_qemu
108
109    _notrun 'Postcopy is not supported'
110fi
111
112_send_qemu_cmd $src 'migrate_set_parameter max_bandwidth 4k' "(qemu)"
113_send_qemu_cmd $src 'migrate_set_capability postcopy-ram on' "(qemu)"
114_send_qemu_cmd $src "migrate -d unix:${MIG_SOCKET}" "(qemu)"
115_send_qemu_cmd $src 'migrate_start_postcopy' "(qemu)"
116
117QEMU_COMM_TIMEOUT=1 qemu_cmd_repeat=10 silent=yes \
118    _send_qemu_cmd $src "info migrate" "completed\|failed"
119silent=yes _send_qemu_cmd $src "" "(qemu)"
120
121echo
122echo === Do some I/O on the destination ===
123echo
124
125# It is important that we use the BlockBackend of the guest device here instead
126# of the node name, which would create a new BlockBackend and not test whether
127# the guest has the necessary permissions to access the image now
128silent=
129_send_qemu_cmd $dest 'qemu-io disk "read -P 0x55 0 64k"' "(qemu)"
130_send_qemu_cmd $dest "" "ops/sec"
131_send_qemu_cmd $dest 'qemu-io disk "write -P 0x66 1M 64k"' "(qemu)"
132_send_qemu_cmd $dest "" "ops/sec"
133
134echo
135echo === Shut down and check image ===
136echo
137
138_send_qemu_cmd $src 'quit' ""
139_send_qemu_cmd $dest 'quit' ""
140wait=1 _cleanup_qemu
141
142_check_test_img
143
144# success, all done
145echo "*** done"
146rm -f $seq.full
147status=0
148