[PATCH kernel 0/4] KVM: PPC: Add in-kernel acceleration for 64bit DMA

[Alexey Kardashevskiy]

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 depends on:

69b907297f4e list: Add lockless list traversal primitives
and recently posted:
powerpc: Make vmalloc_to_phys() public
KVM: PPC: Add in-kernel multitce handling


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    | 35 ++++++++++++++++++++---------------
 arch/powerpc/kvm/book3s_64_vio_hv.c | 22 ++++++++++++----------
 arch/powerpc/kvm/powerpc.c          | 25 ++++++++++++++++++++++++-
 include/uapi/linux/kvm.h            |  3 +++
 8 files changed, 104 insertions(+), 28 deletions(-)

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2.5.0.rc3