From mboxrd@z Thu Jan  1 00:00:00 1970
From: Anthony Liguori <anthony@codemonkey.ws>
Subject: Re: -enable-kvm - can it be a required option?
Date: Wed, 17 Mar 2010 15:56:26 -0500
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To: Michael Tokarev <mjt@tls.msk.ru>
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On 03/17/2010 03:18 PM, Michael Tokarev wrote:
> What I mean is: if asked to enable kvm but kvm
> can't be initialized for some reason (lack of
> virt extensions on the cpu, permission denied
> and so on), can we stop with a fatal error
> instead of continuing in emulated mode?
>    

What I've been thinking, is that we should make kvm enablement a -cpu 
option.  Something like:

-cpu host,accel=kvm
-cpu host,accel=tcg
-cpu host,accel=kvm:tcg

(1) would be KVM only, (2) would be TCG only, (3) would be KVM falling 
back to TCG.

What's nice about this approach, is that we already pull CPU model 
definitions from a global config file which means that you could tweak 
this parameter to your liking.

Regards,

Anthony Liguori