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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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