Re: [Qemu-devel] [RFC PATCH v6 0/6] Virtio refactoring.

[Michael S. Tsirkin]

On Tue, Dec 18, 2012 at 03:59:59PM +0100, Paolo Bonzini wrote:
> > It does seem frankly bizarre that adding a new transport requires
> > knowing about all the backends (notice how s390-virtio-bus.c has
> > to register types for each backend). The kernel gets the transport
> > vs backend separation much cleaner and it was much easier to
> > add the virtio support there.
> 
> Yes, I agree.  However, to some extent it's unavoidable.  For example,
> the PCI transport needs to know the class id for each backend.

PCI device ID too (they don't match virtio IDs).

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MST