[openstack-dev] Instance with access to GPU, libvirt and hostdev
Daniel P. Berrange
berrange at redhat.com
Wed Apr 10 09:32:02 UTC 2013
On Wed, Apr 10, 2013 at 11:22:23AM +0200, Guillaume Thouvenin wrote:
> On 10/04/2013 11:00, Daniel P. Berrange wrote:
> >>I don't believe this would work without IOMMU support.
> >Correct, libvirt will refuse to let you assign any devices to a
> >guest, unless it can be done safely, which means you need
> >an IOMMU.
> OK so I think that I misunderstood something. Currently IOMMU is not
> working on my machine. But I can allow the access to a pci device to
> my container by doing:
> <hostdev mode='capabilities' type='misc'>
Oh, well that is LXC, rather than KVM so you have pretty
much zero security in anything.
IOMMU is relevant doing using KVM / Xen / etc
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