On 8/25/2023 9:59 AM, Jason Gunthorpe wrote: > On Fri, Aug 25, 2023 at 09:55:52AM -0700, Reinette Chatre wrote: > >> Thank you very much for your guidance. Instead of Jason's expectation that >> IMS would be a backend of MSI-X this will change to IMS and MSI-X both being >> a backend to a new interface. It is difficult for me to envision the end >> result so I will work on an implementation based on my understanding of >> your proposal that we can use for further discussion. > > I think the point is that emulating MSI-X is kind of tricky and should > be common VFIO code, regardless of what path it takes. > > So I would expect some library code to do this, entry points the > vfio_device can hook into its callbacks (eg config space and rw of a > page) > > Then the other side would connect to the physical implementation, > sw,ims,msi-x,future > Thank you very much Jason. I am thus hearing the same from you and Kevin. I'll work on this. Reinette
