Re: [Qemu-devel] [PATCH 1/3] hw/sd/pxa2xx_mmci: convert to SysBusDevice object

[Peter Maydell]

On 4 December 2015 at 12:50, Markus Armbruster <address@hidden> wrote:
> To finally answer your question: the proper owner of the property
> connecting the backend is the frontend half of the split device.  So, if
> we have separate device models for controller and the block devices
> connected to it, the block backend property belongs to the latter, not
> the former.  If we have separate device models for SD controller and
> card, the block backend property belongs to the card, not the
> controller.

I thought this might be your answer, but this is problematic because
we now have a device in the tree (the sdhci pci card) which has the
property on the controller, and so that's now user-facing command
line ABI which we can't change...

thanks
-- PMM