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Kyle Evans
12f90bbd30
According to the virtio spec:
> The driver MUST NOT send any buffer available notifications to the
> device before setting DRIVER_OK.
DRIVER_OK isn't set until after attach completes, so defer the first
enqueue. We haven't found any problems as a result of this to the best
of my knowledge: q35 and other devices that we *have* been used with
will apparently check when we go DRIVER_OK.
Tested with q35 virtio-random, which still works.
Reported by: llm-postcr
Reviewed by: kfv, markj
Fixes: f1c5a2e3a6 ("virtio_random: Pipeline fetching the data")
Sponsored by: Stormshield
Sponsored by: Klara, Inc.
Differential Revision: https://reviews.freebsd.org/D61228