'default_backend' isn't always set, but 'rng' is, so use that.
$ ./x86_64-softmmu/qemu-system-x86_64 -object rng-random,id=rng0,filename=/dev/random -device virtio-rng-pci,rng=rng0
Segmentation fault (core dumped)
Regressed with virtio refactoring in
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|---|---|---|
| .. | ||
| Makefile.objs | ||
| css.c | ||
| css.h | ||
| event-facility.c | ||
| ipl.c | ||
| s390-virtio-bus.c | ||
| s390-virtio-bus.h | ||
| s390-virtio-ccw.c | ||
| s390-virtio-hcall.c | ||
| s390-virtio.c | ||
| s390-virtio.h | ||
| sclp.c | ||
| sclpquiesce.c | ||
| virtio-ccw.c | ||
| virtio-ccw.h | ||