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

[Michael S. Tsirkin]

On Tue, Dec 18, 2012 at 10:33:37AM +0000, Peter Maydell wrote:
> On 17 December 2012 15:45, Michael S. Tsirkin <address@hidden> 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

This is what I am saying: create your own bus and put
your devices there. Allocate resources when you init
a device.

Instead you seem to want to expose a virtio device as two devices to
user - if true this is not reasonable.

-- 
MST