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

From: Anthony Liguori
Subject: Re: [Qemu-devel] Re: [PATCH] vhost: fix features ack
Date: Wed, 31 Mar 2010 14:37:05 -0500
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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.


Anthony Liguori

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