> From: Nicolin Chen <nicolinc@xxxxxxxxxx> > Sent: Friday, September 6, 2024 4:15 AM > > On Thu, Sep 05, 2024 at 02:43:26PM -0300, Jason Gunthorpe wrote: > > On Thu, Sep 05, 2024 at 10:37:45AM -0700, Nicolin Chen wrote: > > > 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. > > Ah, right! The create is per-viommu, so it's being attached. > presumably we also need check compatibility between the idev which the virtual device is created against and the stage-2 pgtable, as a normal attach required?
