On Tue, Apr 05, 2022 at 11:41:01AM +0100, Robin Murphy wrote: > iommu_capable() only really works for systems where all IOMMU instances > are completely homogeneous, and all devices are IOMMU-mapped. Implement > the new variant which can give an accurate answer for whichever device > the caller is actually interested in. > > Signed-off-by: Robin Murphy <robin.murphy@xxxxxxx> > --- > > v3: New patch; now that the dev_iommu_ops() work has landed we can go > straight to a proper implementation. Also s/dev/device/ to match > the precedent of device_iommu_mapped() for the public API. I'm a little worrited about a method with a parameter than can be NULL. Also usnic, vmd, and vdpa really want to use your new device_iommu_capable as they check based on a device. Just VFIO is special as usual..
