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


From: Alexey Kardashevskiy
Subject: Re: [Qemu-ppc] [PATCH qemu 0/3] spapr/iommu: Enable in-kernel TCE acceleration via VFIO KVM device
Date: Mon, 15 Jan 2018 15:12:07 +1100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0

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?


> 
> Thanks,
> 
> Paolo
> 


-- 
Alexey



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