On Thu, Sep 05, 2024 at 10:37:45AM -0700, Nicolin Chen wrote: > we only have virtual device ID in its data structure. Also, the > virtual device sounds a bit confusing, given we already have idev. idev is "iommufd device" which is the physical device The virtual device is the host side handle of a device in a VM. > That being said, if we have a clear picture that in the long term > we would extend it to hold more information, I think it could be > a smart move. > > Perhaps virtual device can have its own "attach" to vIOMMU? Or > would you still prefer attaching via proxy hwpt_nested? I was thinking just creating it against a vIOMMU is an effective "attach" and the virtual device is permanently tied to the vIOMMU at creation time. Is there more to attach? I think some CC stuff had a few more verbs in the lifecycle though Jason
