Open Stack

Hey Y'all,

I've got a working installation of OpenStack Icehouse running on CentOS 
6.5, works great.  However, one of my image types, a FreeBSD 10.0 image, 
is not playing well with a CPU flag and KVM on my compute nodes.  What I 
need to do is disable a CPU feature in the KVM libvirt.xml files on the 
compute node, or rather, have OpenStack Nova do that for me when I 
launch the FreeBSD image specifically.  Is there any way I can easily do 
that?  I'm needing to disable the xsave feature for Intel processors, if 
that makes any difference.  But I suspect the solution would be more 
generic, like, "do this to tweak xml on image deployment" or something...?

Any hints greatly appreciated!!

cheers,
erich