30/11/2017 03:57, Chas Williams: > From: Chas Williams <ch...@att.com> > > The IOMMU in some machines report that they can only support > limited widths. IOVA virtual addresses may exceed this width > making the use of IOVA virtual addresses difficult. The option > CONFIG_RTE_LIBRTE_USE_PHYS_IOVA can used to force IOVA physical > address usage.
Which machines are you talking about? A run-time option may be a better solution.
