Re: [Qemu-devel] [PATCH qemu RFC 4/7] vfio/nvidia-v100: Disable VBIOS update

2018-11-18 Thread David Gibson
On Tue, Nov 13, 2018 at 07:31:01PM +1100, Alexey Kardashevskiy wrote: > The NVIDIA V100 GPUs often come in several instances on the same system > board where they are connected directly via out of band fabric called > "NVLink". > > In order to make GPUs talk to each other, NVLink has to be enabled

[Qemu-devel] [PATCH qemu RFC 4/7] vfio/nvidia-v100: Disable VBIOS update

2018-11-13 Thread Alexey Kardashevskiy
The NVIDIA V100 GPUs often come in several instances on the same system board where they are connected directly via out of band fabric called "NVLink". In order to make GPUs talk to each other, NVLink has to be enabled on both GPUs and this is guaranteed by the firmware by providing special MMIO r