On Thu Sep 4, 2025 at 2:15 PM CEST, Jason Gunthorpe wrote: > On Thu, Sep 04, 2025 at 11:41:03AM +0200, Danilo Krummrich wrote: > >> > Another note: I don't see any use of the auxiliary bus in vGPU, any clients >> > should attach via the auxiliary bus API, it provides proper matching where >> > there's more than on compatible GPU in the system. nova-core already registers >> > an auxiliary device for each bound PCI device. > > The driver here attaches to the SRIOV VF pci_device, it should obtain the > nova-core handle of the PF device through pci_iov_get_pf_drvdata(). > > This is the expected design of VFIO drivers because the driver core > does not support a single driver binding to two devices (aux and VF) > today. Yeah, that's for the VF PCI devices, but I thought vGPU will also have some kind of "control instance" for each physical device through which it can control the creation of VFs?
