[PATCH 0/2] Early printk support for virtio console devices.

[Peter Maydell]

On 26 April 2013 12:19, Alexander Graf <agraf at suse.de> wrote:
> MMIO registers are handled by a different layer than the virtio
> console itself. After the virtio refactoring in QEMU, they will
> be completely separate drivers.

Good point -- we don't really want to be mixing up the
transport and the backend. You can see it in the kvmtool
patch, in fact -- it introduces an "if this is virtio-console"
special case into the mmio.c file which previously was
entirely backend agnostic.

thanks
-- PMM