This is my current queue of the in-kernel TCE acceleration enablement. Changes since https://lists.gnu.org/archive/html/qemu-devel/2017-12/msg01918.html : * 3 patches instead of one, one per maintainership area; * added memory_region_iommu_get_attr(); * removed set_attr() as there is no use for it now; * folded the chunk in vfio_listener_region_add() under VFIO_SPAPR_TCE_v2_IOMMU branch as the acceleration is only enabled when DMA memory is preregistered and this is only supported by the v2 IOMMU.
This is based on sha1 ad59cde Cédric Le Goater "target/ppc: more use of the PPC_*() macros". Please comment. Thanks. Alexey Kardashevskiy (3): memory/iommu: Add get_attr() vfio/spapr: Use iommu memory region's get_attr() spapr/iommu: Enable in-kernel TCE acceleration via VFIO KVM device include/exec/memory.h | 22 ++++++++++++++++++++++ target/ppc/kvm_ppc.h | 6 ++++++ hw/ppc/spapr_iommu.c | 19 +++++++++++++++++++ hw/vfio/common.c | 26 ++++++++++++++++++++++++++ memory.c | 13 +++++++++++++ target/ppc/kvm.c | 7 ++++++- hw/vfio/trace-events | 1 + 7 files changed, 93 insertions(+), 1 deletion(-) -- 2.11.0
