On Tue, Jun 08, 2010 at 02:21:52PM -0700, Tom Lyon wrote:
> +     case VFIO_DOMAIN_UNSET:
> +             vfio_domain_unset(vdev);
> +             ret = 0;
> +             break;
> +

What if I do:
SET
mmap
UNSET

Now I have access to device which is not behind an iommu.
Simplest solution is to remove the UNSET ioctl:
it's not terribly useful anyway.

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