[vfio-users] Using VFIO on OpenStack

[Eddie Yen]

Yes, nova is VMM just like libvirt, I know nova isn't a hypervisor.
Also, I found this: http://osdir.com/ml/openstack-dev/2014-04/msg00022.html

"Actually, libvirt will automatically use VFIO if it is available on the
host OS
by default. This is the case with any recent Fedora and will thus be the
case
with forthcoming RHEL-7. So nova wouldn't have todo anything to enable use
of
VFIO - it is supposed to "just work"
when available."

According this, seems like nova can detect VFIO automatically and going to
use if available?

2015-11-07 9:08 GMT+08:00 Alex Williamson <alex.l.williamson at gmail.com>:

> On Fri, Nov 6, 2015 at 6:04 PM, Eddie Yen <missile0407 at gmail.com> wrote:
>
>> So for now it still have problems on OpenStack.
>> As I known, OpenStack using nova as VMM, and it based on libvirt.
>> If we want to use VFIO on OpenStack, not only QEMU, but also need to
>> re-compile nova to compatible VFIO and Hyper-V functions.
>> Seem like it will be a huge works.
>>
>
> I think you need to do some more research.  Nova is just the name of the
> compute node, not the name of the hypervisor.  Openstack supports all sorts
> of hypervisors, including QEMU/KVM.
>
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