On Thu, Oct 3, 2013 at 11:19 PM, Bhushan Bharat-R65777 <r65...@freescale.com> wrote:
>> I don't know enough about VFIO to understand why these new interfaces are >> needed. Is this the first VFIO IOMMU driver? I see vfio_iommu_spapr_tce.c >> and >> vfio_iommu_type1.c but I don't know if they're comparable to the Freescale >> PAMU. >> Do other VFIO IOMMU implementations support MSI? If so, do they handle the >> problem of mapping the MSI regions in a different way? > > PAMU is an aperture type of IOMMU while other are paging type, So they are > completely different from what PAMU is and handle that differently. This is not an explanation or a justification for adding new interfaces. I still have no idea what an "aperture type IOMMU" is, other than that it is "different." But I see that Alex is working on this issue with you in a different thread, so I'm sure you guys will sort it out. Bjorn -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
