This is for passing through NVIDIA V100 GPUs on POWER9 systems. This implements a subdriver for NVIDIA V100 GPU with coherent memory and NPU/ATS support available in the POWER9 CPU.
Here is the kernel driver: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/vfio/pci?h=v5.0-rc6&id=7f92891778dff62303c070ac81de7b7d80de331a This is based on David's ppc-for-4.0 sha1 28aa643760dd Suraj Jitindar Singh "target/ppc/spapr: Clear partition table entry when allocating hash table". Please comment. Thanks. Alexey Kardashevskiy (3): spapr_iommu: Do not replay mappings from just created DMA window vfio: Make vfio_get_region_info_cap public spapr: Support NVIDIA V100 GPU with NVLink2 hw/ppc/Makefile.objs | 2 +- hw/vfio/pci.h | 2 + include/hw/pci-host/spapr.h | 45 ++++ include/hw/ppc/spapr.h | 4 +- include/hw/vfio/vfio-common.h | 2 + hw/ppc/spapr.c | 29 ++- hw/ppc/spapr_iommu.c | 31 +++ hw/ppc/spapr_pci.c | 19 ++ hw/ppc/spapr_pci_nvlink2.c | 441 ++++++++++++++++++++++++++++++++++ hw/ppc/spapr_rtas_ddw.c | 10 + hw/vfio/common.c | 2 +- hw/vfio/pci-quirks.c | 120 +++++++++ hw/vfio/pci.c | 14 ++ hw/vfio/trace-events | 4 + 14 files changed, 719 insertions(+), 6 deletions(-) create mode 100644 hw/ppc/spapr_pci_nvlink2.c -- 2.17.1