[libvirt] [PATCH] qemu: Reject SDL graphic if it's not supported by qemu

[Justin Clift]

On 12/01/2011, at 12:39 AM, Richard W.M. Jones wrote:
> On Tue, Jan 11, 2011 at 09:21:26PM +0800, Osier Yang wrote:
>> So, it means the newer qemu-kvm (of RHEL) doesn't support sdl
>> anymore. Didn't send the patch to Red Hat internal list,
>> as the patch won't conflict with upstream.
>> 
>> IMHO it's not reasonable that we have "sdl" xml in domain
>> config, but no according command line of qemu, and pretend
>> everything is fine.
>> 
>> Any good idea? Thanks
> 
> qemu needs to support capabilities ...
> 
> Been discussed with upstream qemu many times and no movement
> on it.

Is it feasible (or even useful) to create a library or utility called
"qemu-capabilities", who's sole purpose is to interrogate a qemu
installation and then provide us a list of its capabilities?