Re: [Qemu-devel] [RFC PATCH v7 7/8] virtio-pci-blk : Switch to new API.

[Michael S. Tsirkin]

On Wed, Dec 12, 2012 at 07:03:21PM +0100, Paolo Bonzini wrote:
> Il 12/12/2012 18:58, Peter Maydell ha scritto:
> > It should be equally
> > valid to just use the PCI transport plugged into a VirtioDevice,
> > both of which were created by the user with -device [and for
> > new transports, separate transport and backend should be the
> > standard]. That means the virtio-bus interface needs a way for
> > the backend to announce to the transport what it is so that
> > the PCI transport can set the right PCI IDs.
> 
> There is such an interface (the device_id, aka VIRTIO_ID_*).  Then
> virtio-pci needs a mapping from the device_id to the (default)
> vendor_id/device_id/class tuple.
> 
> Paolo

At least device id and vedor id are easy.