[CentOS-virt] Can I mix kvm and virtual box?

Sun Nov 14 06:52:33 UTC 2010
Mathieu Baudier <mbaudier at argeo.org>

> If you manually install virtualbox, you can unload the kvm module
> manually and load the virtual box modules. You can't have both loaded
> at the same time (at least not that I know of), but you can unload
> one and load the other.

Concretely, before running VirtualBox, run:
sudo /sbin/modprobe -r kvm_intel
(or maybe kvm_amd if you're not running on Intel processors...)

If you want to disable kvm for between reboots, you can blacklist the module.