On Fri, 2020-05-15 at 10:19 -0700, Raj, Ashok wrote: > Hi Christoph > > 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? Even the Intel IOMMU supports ACPI devices for which there is no struct pci_dev; only a B/D/F in the ANDD record indicating which entry in the context table to use.
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