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Re: [Qemu-ppc] [PATCH qemu 0/3] spapr/iommu: Enable in-kernel TCE accele


From: Alex Williamson
Subject: Re: [Qemu-ppc] [PATCH qemu 0/3] spapr/iommu: Enable in-kernel TCE acceleration via VFIO KVM device
Date: Tue, 16 Jan 2018 13:46:14 -0700

On Mon, 15 Jan 2018 15:12:07 +1100
Alexey Kardashevskiy <address@hidden> wrote:

> On 03/01/18 04:51, Paolo Bonzini wrote:
> > On 02/01/2018 06:28, Alexey Kardashevskiy wrote:  
> >> 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 C├ędric 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(-)
> >>  
> > 
> > Alex, if this is okay for you, please pick it up yourself.  
> 
> Alex, ping?

Yeah, I'll pick these up.  Paolo, do you want to throw an explicit Ack
for the first patch?  David, R-b/A-b?  Thanks,

Alex



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