Re: [PATCH kernel v6 20/20] vfio_pci: Add NVIDIA GV100GL [Tesla V100 SXM2] subdriver

2018-12-19 Thread Alex Williamson
[cc +kvm, +lkml] Ditto list cc comment from 18/20, and doubly so on this with updates to the vfio uapi. Also comment below... On Wed, 19 Dec 2018 19:52:32 +1100 Alexey Kardashevskiy wrote: > POWER9 Witherspoon machines come with 4 or 6 V100 GPUs which are not > pluggable PCIe devices but still

[PATCH kernel v6 20/20] vfio_pci: Add NVIDIA GV100GL [Tesla V100 SXM2] subdriver

2018-12-19 Thread Alexey Kardashevskiy
POWER9 Witherspoon machines come with 4 or 6 V100 GPUs which are not pluggable PCIe devices but still have PCIe links which are used for config space and MMIO. In addition to that the GPUs have 6 NVLinks which are connected to other GPUs and the POWER9 CPU. POWER9 chips have a special unit on a die