Re: [Qemu-devel] [PATCH 0/8] Add virtio-mmio and use it in vexpress

[Anthony Liguori]

Alexander Graf <address@hidden> writes:

> On 08.07.2013, at 22:08, Anthony Liguori wrote:
>
>> I think we're trying to fit a square peg into a round hole.
>> 
>> virtio-mmio is a virtio transport where each device has a dedicated set
>> of system resources.
>> 
>> Alex, it sounds like you want virtio-mmio-bus which would be a single
>> set of system resources that implemented a virtio bus on top of it.
>
> Well, what I really want is a sysbus that behaves like PCI from a
> usability point of view ;).

Which means you need to have (1) a discovery mechanism with a stable
addressing mechanism (2) a way to communicate this to the guest from the
host.

That's all that PCI is.  A host controller is a "sysbus" device that
uses a standardized discovery and addressing mechanism.

Regards,

Anthony Liguori

>
>
> Alex