On Mon, Nov 14, 2022 at 09:55:21AM -0500, Matthew Rosato wrote: > >> AFAICT there is no equivalent means to specify > >> vfio_iommu_type1.dma_entry_limit when using iommufd; looks like > >> we'll just always get the default 65535. > > > > No, there is no arbitary limit on iommufd > > Yeah, that's what I suspected. But FWIW, userspace checks the > advertised limit via VFIO_IOMMU_GET_INFO / > VFIO_IOMMU_TYPE1_INFO_DMA_AVAIL, and this is still being advertised > as 65535 when using iommufd. I don't think there is a defined way > to return 'ignore this value'. Is something using this? Should we make it much bigger? Jason
