[PATCH] qemu/virtio: move features to an inline function

[Anthony Liguori]

Michael S. Tsirkin wrote:
> devices should have the final say over which virtio features they
> support. E.g. indirect entries may or may not make sense in the context
> of virtio-console.  Move the common bits from virtio-pci to an inline
> function and let each device call it.
>   

What drove this in vhost?

Normally, the common features are transport features and the devices 
should have absolutely no knowledge of transport feature (since they're 
transport dependent).

IOW, VIRTIO_RING_F_INDIRECT_DESC is meaningless to virtio-console 
because virtio-console has no idea what the ring implementation is that 
it sits on top of.

Regards,

Anthony Liguori