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


From: Paolo Bonzini
Subject: Re: [Qemu-ppc] [PATCH qemu 0/3] spapr/iommu: Enable in-kernel TCE acceleration via VFIO KVM device
Date: Thu, 18 Jan 2018 09:13:34 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.5.0

On 16/01/2018 21:46, Alex Williamson wrote:
> 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
> 

Acked-by: Paolo Bonzini <address@hidden>



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