On Thu, Nov 07, 2024 at 08:31:39AM -0800, Nicolin Chen wrote: > > Is there any plan to add guest device BDFn as well, or I can add one > > here for my TEE-IO exercise, if it is the right place? It is the same as > > vDeviceID for AMD but I am not sure about the others, hence the > > question. Thanks, > > Generally speaking, adding vRID isn't a problem so long as there > is a legit reason/usecase. That being said, if it is the same as > the @virt_id for AMD, why not just pass via @virt_id v.s. adding > a new vRID/vBDF field? For CC I'm expecting you to add a AMD CC specific datablob to alloc viommu that convays all the specific details that the CC world needs to define the vPCI device. This might include vRID It depends how you define vdeviceid - for AMD vdeviceid is the index into the DTE table. vRID, especially if it includes a segment id may be a larger value and should be seperate. Jason
