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
Per Intel(R) VT-d 3.0, the qi_desc is 256 bits in Scalable Mode. This patch adds emulation of 256bits qi_desc. Signed-off-by: Liu, Yi L <yi.l.liu@intel.com> [Yi Sun is co-developer to rebase and refine the patch.] Signed-off-by: Yi Sun <yi.y.sun@linux.intel.com> Reviewed-by: Peter Xu <peterx@redhat.com> Message-Id: <1551753295-30167-3-git-send-email-yi.y.sun@linux.intel.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>