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SubjectRe: [PATCH V2] VFIO driver: Non-privileged user level PCI drivers
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.

--
MST


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