[Openstack-operators] Passing additional parameters to KVM for a single instance

Gary Molenkamp molenkam at uwo.ca
Fri Jan 26 15:59:28 UTC 2018

I'm trying to import a Solaris10 image into Ocata that is working under 
libvirt/KVM on a Fedora workstation.  However, in order for the kvm 
instance to work, it needs a few additional parameters to qemu that I 
use in the libvirt XML file:

  <cpu match='exact'>
     <model fallback='allow'>Westmere</model>

      <qemu:arg value='-no-kvm-irqchip'/>

For the first parameter, I know I could modify the /etc/nova/nova.conf 
of the entire hypervisor on the compute node to Westmere and limit 
instances to that hypervisor, but that limits additional instances on 
that compute node.   Is there a way to instruct nova to use a westmere 
cpu for a single instance?

Likewise, how can I pass the -no-kvm-irqchip option for instances of 
this image?

Any pointers would be appreciated.


Gary Molenkamp			Computer Science
Systems Administrator		University of Western Ontario
molenkam at uwo.ca                 http://www.csd.uwo.ca
(519) 661-2111 x86882		(519) 661-3566

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