On Fri, Feb 05, 2021 at 11:42:11AM +1100, Alexey Kardashevskiy wrote: > > A real nvswitch function? > > What do you mean by this exactly? The cpu side of nvlink is "emulated pci > devices", the gpu side is not in pci space at all, the nvidia driver manages > it via the gpu's mmio or/and cfg space.
Some versions of the nvswitch chip have a PCI-E link too, that is what I though this was all about when I first saw it. So, it is really a special set of functions for NVIDIA GPU device assignment only applicable to P9 systems, much like IGD is for Intel on x86. Jason
