This is a first set of patches required for passing through NVIDIA V100 with coherent memory. The full patchset is here: https://github.com/aik/linux/tree/nv2 The matching QEMU is here: https://github.com/aik/qemu/tree/nv2 This particular patchset prepares for having device memory which is not backed with page structs. Does 4/4 really need splitting? Please comment. Thanks. Alexey Kardashevskiy (4): powerpc/mm/iommu: Rename mm_iommu_get powerpc/mm/iommu/vfio_spapr_tce: Change mm_iommu_get to reference a region powerpc/mm/iommu: Make mm_iommu_new() fail on existing regions powerpc/vfio/iommu/kvm: Do not pin device memory arch/powerpc/include/asm/iommu.h | 5 +- arch/powerpc/include/asm/mmu_context.h | 9 +++- arch/powerpc/kernel/iommu.c | 9 ++-- arch/powerpc/kvm/book3s_64_vio.c | 18 ++++--- arch/powerpc/mm/mmu_context_iommu.c | 97 +++++++++++++++++++++++++++++----- drivers/vfio/vfio_iommu_spapr_tce.c | 65 +++++++++++++++-------- 6 files changed, 151 insertions(+), 52 deletions(-) -- 2.11.0
