Add two test images showing the use of 'data_file' and 'data_file_raw'
(although the latter is not detected by libvirt) so that we can see that
the qcow2 metadata parser and backing chain populators work correctly.
The example files were created by:
qemu-img create -f qcow2 -o data_file=raw,data_file_raw=true,preallocation=off datafile.qcow2 1k
qemu-img create -f qcow2 -o data_file=rawpreallocation=off -F qcow2 -b datafile.qcow2 qcow2datafile-datafile.qcow2
Note that 'data_file_raw' is mutually exclusive with backing images.
Signed-off-by: Nikolai Barybin <nikolai.barybin@virtuozzo.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
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