[PATCH kernel v8 00/10] powerpc/kvm/vfio: Enable in-kernel acceleration

[Alexey Kardashevskiy]

On 10/03/17 15:48, David Gibson wrote:
> On Fri, Mar 10, 2017 at 02:53:27PM +1100, Alexey Kardashevskiy wrote:
>> This is my current queue of patches to add acceleration of TCE
>> updates in KVM.
>>
>> This is based on Linus'es tree sha1 c1aa905a304e.
> 
> I think we're finally there - I've now sent an R-b for all patches.

Thanks for the patience.


I supposed in order to proceed now I need an ack from Alex, correct?


> 
> 
>>
>> Please comment. Thanks.
>>
>> Changes:
>> v8:
>> * kept fixing oddities with error handling in 10/10
>>
>> v7:
>> * added realmode's WARN_ON_ONCE_RM in arch/powerpc/kvm/book3s_64_vio_hv.c
>>
>> v6:
>> * reworked the last patch in terms of error handling and parameters checking
>>
>> v5:
>> * replaced "KVM: PPC: Separate TCE validation from update" with
>> "KVM: PPC: iommu: Unify TCE checking"
>> * changed already reviewed "powerpc/iommu/vfio_spapr_tce: Cleanup iommu_table disposal"
>> * reworked "KVM: PPC: VFIO: Add in-kernel acceleration for VFIO"
>> * more details in individual commit logs
>>
>> v4:
>> * addressed comments from v3
>> * updated subject lines with correct component names
>> * regrouped the patchset in order:
>> 	- powerpc fixes;
>> 	- vfio_spapr_tce driver fixes;
>> 	- KVM/PPC fixes;
>> 	- KVM+PPC+VFIO;
>> * everything except last 2 patches have "Reviewed-By: David"
>>
>> v3:
>> * there was no full repost, only last patch was posted
>>
>> v2:
>> * 11/11 reworked to use new notifiers, it is rather RFC as it still has
>> a issue;
>> * got 09/11, 10/11 to use notifiers in 11/11;
>> * added rb: David to most of patches and added a comment in 05/11.
>>
>> Alexey Kardashevskiy (10):
>>   powerpc/mmu: Add real mode support for IOMMU preregistered memory
>>   powerpc/powernv/iommu: Add real mode version of
>>     iommu_table_ops::exchange()
>>   powerpc/iommu/vfio_spapr_tce: Cleanup iommu_table disposal
>>   powerpc/vfio_spapr_tce: Add reference counting to iommu_table
>>   KVM: PPC: Reserve KVM_CAP_SPAPR_TCE_VFIO capability number
>>   KVM: PPC: Enable IOMMU_API for KVM_BOOK3S_64 permanently
>>   KVM: PPC: Pass kvm* to kvmppc_find_table()
>>   KVM: PPC: Use preregistered memory API to access TCE list
>>   KVM: PPC: iommu: Unify TCE checking
>>   KVM: PPC: VFIO: Add in-kernel acceleration for VFIO
>>
>>  Documentation/virtual/kvm/devices/vfio.txt |  22 +-
>>  arch/powerpc/include/asm/iommu.h           |  32 ++-
>>  arch/powerpc/include/asm/kvm_host.h        |   8 +
>>  arch/powerpc/include/asm/kvm_ppc.h         |  12 +-
>>  arch/powerpc/include/asm/mmu_context.h     |   4 +
>>  include/uapi/linux/kvm.h                   |   9 +
>>  arch/powerpc/kernel/iommu.c                |  86 +++++---
>>  arch/powerpc/kvm/book3s_64_vio.c           | 330 ++++++++++++++++++++++++++++-
>>  arch/powerpc/kvm/book3s_64_vio_hv.c        | 303 ++++++++++++++++++++++----
>>  arch/powerpc/kvm/powerpc.c                 |   2 +
>>  arch/powerpc/mm/mmu_context_iommu.c        |  39 ++++
>>  arch/powerpc/platforms/powernv/pci-ioda.c  |  46 ++--
>>  arch/powerpc/platforms/powernv/pci.c       |   1 +
>>  arch/powerpc/platforms/pseries/iommu.c     |   3 +-
>>  arch/powerpc/platforms/pseries/vio.c       |   2 +-
>>  drivers/vfio/vfio_iommu_spapr_tce.c        |   2 +-
>>  virt/kvm/vfio.c                            |  60 ++++++
>>  arch/powerpc/kvm/Kconfig                   |   1 +
>>  18 files changed, 855 insertions(+), 107 deletions(-)
>>
> 


-- 
Alexey

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