Re: [Qemu-devel] [PATCH v2 0/7] APIC/IOAPIC cleanup

[Anthony Liguori]

On 08/22/2010 02:44 PM, Avi Kivity wrote:
> > No more MI diamond and all devices have DeviceStates.  
> > Coincidentally, it matches more closely how hardware works..
>
>
> Well, I agree, but I honestly lost the context.  How does this relate 
> to the APIC and cpu hotplug?
>
> I'll take the opportunity to say that we should be using a language 
> that has first-class (...) support for these concepts instead of 
> having to divine them from the code.

At the risk of sounding uncool, I think what we really need is a UML 
diagram describing the device tree.  It's really not that much more 
difficult to create a similar mess in C++.

Regards,

Anthony Liguori

> > Generally speaking, any time we have one device that needs to sit on 
> > multiple busses, we're going to have to model it in this fashion.
>
> We'll just have to address them one by one then.  Perhaps if many come 
> up we can try a generic solution.