> From: Nicolin Chen <nicolinc@xxxxxxxxxx> > Sent: Wednesday, July 6, 2022 2:28 PM > > Most of the callers of vfio_pin_pages() want "struct page *" and the > low-level mm code to pin pages returns a list of "struct page *" too. > So there's no gain in converting "struct page *" to PFN in between. > > Replace the output parameter "phys_pfn" list with a "pages" list, to > simplify callers. This also allows us to replace the vfio_iommu_type1 > implementation with a more efficient one. worth mentioning that vfio pin is only for struct page * hence the pfn_valid() check in gvt can be removed. > > For now, also update vfio_iommu_type1 to fit this new parameter too. > > Signed-off-by: Nicolin Chen <nicolinc@xxxxxxxxxx> Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>
