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

[Paolo Bonzini]

Il 12/12/2012 22:22, Michael S. Tsirkin 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.
> 
> At least device id and vedor id are easy.

Class too, this is a new device virtio-pci so it doesn't need to support
old machine types.

Paolo