Re: [Qemu-devel] [PATCH qemu v6] spapr: Support NVIDIA V100 GPU with NVLink2

2019-03-12 Thread David Gibson
On Tue, Mar 12, 2019 at 03:42:21PM +1100, Alexey Kardashevskiy wrote: > NVIDIA V100 GPUs have on-board RAM which is mapped into the host memory > space and accessible as normal RAM via an NVLink bus. The VFIO-PCI driver > implements special regions for such GPUs and emulates an NVLink bridge. > NVL

[Qemu-devel] [PATCH qemu v6] spapr: Support NVIDIA V100 GPU with NVLink2

2019-03-11 Thread Alexey Kardashevskiy
NVIDIA V100 GPUs have on-board RAM which is mapped into the host memory space and accessible as normal RAM via an NVLink bus. The VFIO-PCI driver implements special regions for such GPUs and emulates an NVLink bridge. NVLink2-enabled POWER9 CPUs also provide address translation services which inclu