On 17 December 2012 15:45, Michael S. Tsirkin <m...@redhat.com> wrote: > Is the point to allow virtio-mmio? Why can't virtio-mmio be just > another bus, like a pci bus, and another binding, like the virtio-pci > binding?
(a) the current code is really not very nice because it's not actually a proper set of QOM/qdev devices (b) unlike PCI, you can't create sysbus devices on the command line, because they don't correspond to a user pluggable bit of hardware. We don't want users to have to know an address and IRQ number for each virtio-mmio device (especially since these are board specific); instead the board can create and wire up transport devices wherever is suitable, and the user just creates the backend (which is plugged into the virtio bus). -- PMM
