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qemu/tests/qemu-iotests/267.out
Daniel P. Berrangé c22d644ca7 block: allow specifying name of block device for vmstate storage 
Currently the vmstate will be stored in the first block device that
supports snapshots. Historically this would have usually been the
root device, but with UEFI it might be the variable store. There
needs to be a way to override the choice of block device to store
the state in.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20210204124834.774401-6-berrange@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2021-02-08 11:19:51 +00:00

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QA output created by 267
=== No block devices at all ===
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728
Testing:
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) savevm snap0
Error: no block device can store vmstate for snapshot
(qemu) info snapshots
no block device can store vmstate for snapshot
(qemu) loadvm snap0
Error: no block device can store vmstate for snapshot
(qemu) quit
=== -drive if=none ===
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728
Testing: -drive driver=file,file=TEST_DIR/t.IMGFMT,if=none
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) savevm snap0
Error: Device 'none0' is writable but does not support snapshots
(qemu) info snapshots
no block device can store vmstate for snapshot
(qemu) loadvm snap0
Error: Device 'none0' is writable but does not support snapshots
(qemu) quit
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728
Testing: -drive driver=IMGFMT,file=TEST_DIR/t.IMGFMT,if=none
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) savevm snap0
(qemu) info snapshots
List of snapshots present on all disks:
ID TAG VM SIZE DATE VM CLOCK ICOUNT
-- snap0 SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000
(qemu) loadvm snap0
(qemu) quit
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728
Testing: -drive driver=IMGFMT,file=TEST_DIR/t.IMGFMT,if=none -device virtio-blk,drive=none0
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) savevm snap0
(qemu) info snapshots
List of snapshots present on all disks:
ID TAG VM SIZE DATE VM CLOCK ICOUNT
-- snap0 SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000
(qemu) loadvm snap0
(qemu) quit
=== -drive if=virtio ===
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728
Testing: -drive driver=file,file=TEST_DIR/t.IMGFMT,if=virtio
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) savevm snap0
Error: Device 'virtio0' is writable but does not support snapshots
(qemu) info snapshots
no block device can store vmstate for snapshot
(qemu) loadvm snap0
Error: Device 'virtio0' is writable but does not support snapshots
(qemu) quit
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728
Testing: -drive driver=IMGFMT,file=TEST_DIR/t.IMGFMT,if=virtio
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) savevm snap0
(qemu) info snapshots
List of snapshots present on all disks:
ID TAG VM SIZE DATE VM CLOCK ICOUNT
-- snap0 SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000
(qemu) loadvm snap0
(qemu) quit
=== Simple -blockdev ===
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728
Testing: -blockdev driver=file,filename=TEST_DIR/t.IMGFMT,node-name=file
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) savevm snap0
Error: Device 'file' is writable but does not support snapshots
(qemu) info snapshots
no block device can store vmstate for snapshot
(qemu) loadvm snap0
Error: Device 'file' is writable but does not support snapshots
(qemu) quit
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728
Testing: -blockdev driver=file,filename=TEST_DIR/t.IMGFMT,node-name=file -blockdev driver=IMGFMT,file=file,node-name=fmt
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) savevm snap0
(qemu) info snapshots
List of snapshots present on all disks:
ID TAG VM SIZE DATE VM CLOCK ICOUNT
-- snap0 SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000
(qemu) loadvm snap0
(qemu) quit
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728
Testing: -blockdev driver=file,filename=TEST_DIR/t.IMGFMT,node-name=file -blockdev driver=raw,file=file,node-name=raw -blockdev driver=IMGFMT,file=raw,node-name=fmt
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) savevm snap0
(qemu) info snapshots
List of snapshots present on all disks:
ID TAG VM SIZE DATE VM CLOCK ICOUNT
-- snap0 SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000
(qemu) loadvm snap0
(qemu) quit
=== -blockdev with a filter on top ===
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728
Testing: -blockdev driver=file,filename=TEST_DIR/t.IMGFMT,node-name=file -blockdev driver=IMGFMT,file=file,node-name=fmt -blockdev driver=copy-on-read,file=fmt,node-name=filter
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) savevm snap0
(qemu) info snapshots
List of snapshots present on all disks:
ID TAG VM SIZE DATE VM CLOCK ICOUNT
-- snap0 SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000
(qemu) loadvm snap0
(qemu) quit
=== -blockdev with a backing file ===
Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=134217728
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/t.IMGFMT.base backing_fmt=IMGFMT
Testing: -blockdev driver=file,filename=TEST_DIR/t.IMGFMT.base,node-name=backing-file -blockdev driver=file,filename=TEST_DIR/t.IMGFMT,node-name=file -blockdev driver=IMGFMT,file=file,backing=backing-file,node-name=fmt
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) savevm snap0
(qemu) info snapshots
List of snapshots present on all disks:
ID TAG VM SIZE DATE VM CLOCK ICOUNT
-- snap0 SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000
(qemu) loadvm snap0
(qemu) quit
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/t.IMGFMT.base backing_fmt=IMGFMT
Testing: -blockdev driver=file,filename=TEST_DIR/t.IMGFMT.base,node-name=backing-file -blockdev driver=IMGFMT,file=backing-file,node-name=backing-fmt -blockdev driver=file,filename=TEST_DIR/t.IMGFMT,node-name=file -blockdev driver=IMGFMT,file=file,backing=backing-fmt,node-name=fmt
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) savevm snap0
(qemu) info snapshots
List of snapshots present on all disks:
ID TAG VM SIZE DATE VM CLOCK ICOUNT
-- snap0 SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000
(qemu) loadvm snap0
(qemu) quit
Internal snapshots on overlay:
Snapshot list:
ID TAG VM SIZE DATE VM CLOCK ICOUNT
1 snap0 SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000
Internal snapshots on backing file:
=== -blockdev with NBD server on the backing file ===
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/t.IMGFMT.base backing_fmt=IMGFMT
Testing: -blockdev driver=file,filename=TEST_DIR/t.IMGFMT.base,node-name=backing-file -blockdev driver=IMGFMT,file=backing-file,node-name=backing-fmt -blockdev driver=file,filename=TEST_DIR/t.IMGFMT,node-name=file -blockdev driver=IMGFMT,file=file,backing=backing-fmt,node-name=fmt
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) nbd_server_start unix:SOCK_DIR/nbd
(qemu) nbd_server_add -w backing-fmt
(qemu) savevm snap0
(qemu) info snapshots
List of snapshots present on all disks:
ID TAG VM SIZE DATE VM CLOCK ICOUNT
-- snap0 SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000
(qemu) loadvm snap0
(qemu) quit
Internal snapshots on overlay:
Snapshot list:
ID TAG VM SIZE DATE VM CLOCK ICOUNT
1 snap0 SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000
Internal snapshots on backing file:
Snapshot list:
ID TAG VM SIZE DATE VM CLOCK ICOUNT
1 snap0 SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000
*** done
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