qemu

FORK: QEMU emulator
git clone https://git.neptards.moe/neptards/qemu.git
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      1 #!/usr/bin/env bash
      2 # group: rw auto backing quick
      3 #
      4 # Test case for mirroring with dataplane
      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
     23 owner=hreitz@redhat.com
     24 
     25 seq=$(basename $0)
     26 echo "QA output created by $seq"
     27 
     28 status=1    # failure is the default!
     29 
     30 _cleanup()
     31 {
     32     _cleanup_qemu
     33     _cleanup_test_img
     34     _rm_test_img "$TEST_IMG.overlay0"
     35     _rm_test_img "$TEST_IMG.overlay1"
     36 }
     37 trap "_cleanup; exit \$status" 0 1 2 3 15
     38 
     39 # get standard environment, filters and qemu instance handling
     40 . ./common.rc
     41 . ./common.filter
     42 . ./common.qemu
     43 
     44 _supported_fmt qcow2
     45 _supported_proto file fuse
     46 
     47 _require_devices scsi-hd
     48 _require_one_device_of virtio-scsi-pci virtio-scsi-ccw
     49 
     50 IMG_SIZE=64K
     51 
     52 _make_test_img $IMG_SIZE
     53 TEST_IMG="$TEST_IMG.overlay0" _make_test_img -b "$TEST_IMG" -F $IMGFMT $IMG_SIZE
     54 TEST_IMG="$TEST_IMG.overlay1" _make_test_img -b "$TEST_IMG" -F $IMGFMT $IMG_SIZE
     55 
     56 # So that we actually have something to mirror and the job does not return
     57 # immediately (which may be bad because then we cannot know whether the
     58 # 'return' or the 'BLOCK_JOB_READY' comes first).
     59 $QEMU_IO -c 'write 0 42' "$TEST_IMG.overlay0" | _filter_qemu_io
     60 
     61 # We cannot use virtio-blk here because that does not actually set the attached
     62 # BB's AioContext in qtest mode
     63 _launch_qemu \
     64     -object iothread,id=iothr \
     65     -blockdev node-name=source,driver=$IMGFMT,file.driver=file,file.filename="$TEST_IMG.overlay0" \
     66     -device virtio-scsi,id=scsi-bus,iothread=iothr \
     67     -device scsi-hd,bus=scsi-bus.0,drive=source
     68 
     69 _send_qemu_cmd $QEMU_HANDLE \
     70     "{ 'execute': 'qmp_capabilities' }" \
     71     'return'
     72 
     73 _send_qemu_cmd $QEMU_HANDLE \
     74     "{ 'execute': 'drive-mirror',
     75        'arguments': {
     76            'job-id': 'mirror',
     77            'device': 'source',
     78            'target': '$TEST_IMG.overlay1',
     79            'mode':   'existing',
     80            'sync':   'top'
     81        } }" \
     82     'BLOCK_JOB_READY'
     83 
     84 # The backing BDS should be assigned the overlay's AioContext
     85 _send_qemu_cmd $QEMU_HANDLE \
     86     "{ 'execute': 'block-job-complete',
     87        'arguments': { 'device': 'mirror' } }" \
     88     'BLOCK_JOB_COMPLETED'
     89 
     90 _send_qemu_cmd $QEMU_HANDLE \
     91     "{ 'execute': 'quit' }" \
     92     'return'
     93 
     94 wait=yes _cleanup_qemu
     95 
     96 # success, all done
     97 echo '*** done'
     98 rm -f $seq.full
     99 status=0