[libvirt] [PATCH 4/4] qemu: add VFIO devices to cgroup ACL

[Daniel P. Berrange]

On Thu, Apr 25, 2013 at 09:44:33PM -0400, Laine Stump wrote:
> We don't know exactly the names of the VFIO devices that will be
> needed (and due to hotplug, we can't ever assume we won't need them at
> all), so we just add an ACL to allow any vfio device - they all have
> the major number 244 (/dev/vfio/vfio is 244,0, and the /dev/vfio/n
> devices are up from there).

We do the correct labelling of the /dev/vfio/"N" device in the
security drivers, so we should be able todo the same for cgroups
device ACL. Allowing all "N" is not acceptable from a security
POV.


Daniel
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