Re: [RFC PATCH 0/3] generic hypercall support

Avi Kivity
2009-05-08T08:37:25Z

Gregory Haskins wrote:

>>> Ack. I hope when its all said and done I can convince you that the
>>> framework to code up those virtio backends in the kernel is vbus ;)
>>>
>> If vbus doesn't bring significant performance advantages, I'll prefer
>> virtio because of existing investment.
>>
>
> Just to clarify: vbus is just the container/framework for the in-kernel
> models. You can implement and deploy virtio devices inside the
> container (tho I haven't had a chance to sit down and implement one
> yet). Note that I did publish a virtio transport in the last few series
> to demonstrate how that might work, so its just ripe for the picking if
> someone is so inclined.
>
>

Yeah I keep getting confused over this.

> So really the question is whether you implement the in-kernel virtio
> backend in vbus, in some other framework, or just do it standalone.
>

I prefer the standalone model. Keep the glue in userspace.

--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.