This accelerates IOMMU operations in real and virtual mode in the host kernel for the KVM guest.
The first patch with multitce support is useful for emulated devices as is. The other patches are designed for VFIO although this series does not contain any VFIO related code as the connection between VFIO and the new handlers is to be made in QEMU via ioctl to the KVM fd. The series was made and tested against v3.10-rc1. Alexey Kardashevskiy (4): KVM: PPC: Add support for multiple-TCE hcalls powerpc: Prepare to support kernel handling of IOMMU map/unmap KVM: PPC: Add support for IOMMU in-kernel handling KVM: PPC: Add hugepage support for IOMMU in-kernel handling Documentation/virtual/kvm/api.txt | 42 +++ arch/powerpc/include/asm/kvm_host.h | 7 + arch/powerpc/include/asm/kvm_ppc.h | 40 ++- arch/powerpc/include/asm/pgtable-ppc64.h | 4 + arch/powerpc/include/uapi/asm/kvm.h | 7 + arch/powerpc/kvm/book3s_64_vio.c | 398 ++++++++++++++++++++++++- arch/powerpc/kvm/book3s_64_vio_hv.c | 471 ++++++++++++++++++++++++++++-- arch/powerpc/kvm/book3s_hv.c | 39 +++ arch/powerpc/kvm/book3s_hv_rmhandlers.S | 6 + arch/powerpc/kvm/book3s_pr_papr.c | 37 ++- arch/powerpc/kvm/powerpc.c | 15 + arch/powerpc/mm/init_64.c | 77 ++++- include/uapi/linux/kvm.h | 5 + 13 files changed, 1120 insertions(+), 28 deletions(-) -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe kvm-ppc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
