On Tue, Aug 27, 2024 at 09:59:43AM -0700, Nicolin Chen wrote: > Introduce a pair of new ioctls to set/unset a per-viommu virtual device id > that should be linked to a physical device id via an idev pointer. Given some of the other discussions around CC I suspect we should rename these to 'create/destroy virtual device' with an eye that eventually they would be extended like other ops with per-CC platform data. ie this would be the interface to tell the CC trusted world that a secure device is being added to a VM with some additional flags.. Right now it only conveys the vRID parameter of the virtual device being created. A following question is if these objects should have their own IDs in the iommufd space too, and then unset is not unset but just a normal destroy object. If so then the thing you put in the ids xarray would also just be a normal object struct. This is probably worth doing if this is going to grow more CC stuff later. Jason
