Hi, On Fri, May 15, 2020 at 10:19:49AM -0700, Raj, Ashok wrote: > On Fri, May 15, 2020 at 08:43:51AM -0700, Christoph Hellwig wrote: > > Can you please lift the untrusted flag into struct device? It really > > isn't a PCI specific concept, and we should not have code poking into > > pci_dev all over the iommu code. > > Just for clarification: All IOMMU's today mostly pertain to only PCI devices > and for devices that aren't PCI like HPET for instance we give a PCI > identifier. Facilities like ATS for instance require the platform to have > an IOMMU. > > what additional problems does moving this to struct device solve? ATS is PCI specific, but IOMMUs certainly aren't! The vast majority of IOMMUs deployed in arm/arm64 SoCs are /not/ using any sort of PCI. Will
