This extends the existing H_PUT_TCE/etc in-kernel acceleration to 64bit DMA windows mapped at addresses other than zero. This accelerates huge DMA windows which pseries guests create using Dynamic DMA window (DDW) API.
This does not affect VFIO yet. This is made against git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc.git , kvm-ppc-next branch. Please comment. Thanks! Alexey Kardashevskiy (4): KVM: PPC: Reserve KVM_CAP_SPAPR_TCE_64 capability number KVM: PPC: Add @page_shift to kvmppc_spapr_tce_table KVM: PPC: Add @offset to kvmppc_spapr_tce_table KVM: PPC: Add support for 64bit TCE windows Documentation/virtual/kvm/api.txt | 32 ++++++++++++++++++++++++++++++++ arch/powerpc/include/asm/kvm_host.h | 4 +++- arch/powerpc/include/asm/kvm_ppc.h | 2 +- arch/powerpc/include/uapi/asm/kvm.h | 9 +++++++++ arch/powerpc/kvm/book3s_64_vio.c | 28 ++++++++++++++++------------ arch/powerpc/kvm/book3s_64_vio_hv.c | 24 +++++++++++++----------- arch/powerpc/kvm/powerpc.c | 25 ++++++++++++++++++++++++- include/uapi/linux/kvm.h | 3 +++ 8 files changed, 101 insertions(+), 26 deletions(-) -- 2.5.0.rc3 _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
