Re: [Qemu-devel] Re: [PATCH] vhost: fix features ack

[Anthony Liguori]

On 03/31/2010 02:25 PM, Michael S. Tsirkin wrote:
> On Wed, Mar 31, 2010 at 02:24:51PM -0500, Anthony Liguori wrote:
>    
> > Long term, I think most of  us want to see a single qemu executable
> > that works for all architectures  and compiling once is an important
> > step in that direction.
> >      
> I'm not so sure. It's pretty low on my list of priorities. Most users only need
> one target, speed of execution and/or features is likely much more important 
> for them,
> and these refactorings make code more generic and harder to extend.s
>    

We ought to have a set of device models that are compiled once, with 
well defined interfaces that model the actual way the various buses 
communicate.  This should all roll into a generic CPU API.  Then we 
should have a set of CPU implementations with choices including various 
TCG targets and KVM targets.

You can still compile out TCG targets that you don't care about but the 
key point is to get all of these interfaces correct.

This refactoring effort isn't really paying attention to improving 
interfaces which I think is a bit problematic.

Regards,

Anthony Liguori