Hey, Rusty,
> For virtualization, we've developed virtio_ring for efficient communication.
> This would also work well for userspace-kernel communication, particularly
> for things like the tun device. By using the same ABI, we can join guests
> to the host kernel trivially.
I'm *sure* you meant to document that somewhat non-trivial proposed new
kernel API as soon as you got a moment. But, since I went to the
trouble of reverse engineering it, I decided not to wait and to make a
little unreliable guide of my own. For those who are curious about how
vringfd() is meant to work (or about how badly I misunderstood it), the
info is at:
http://lwn.net/SubscriberLink/276856/8c927025c53ad7ce/
Hopefully it will be helpful,
jon
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