Re: [PATCH kernel v2 0/3] powerpc/iommu: Add iommu_ops to report capabilities and allow blocking domains

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Michael, Fred, ping?


On 20/09/2022 23:04, Alexey Kardashevskiy wrote:
Here is another take on iommu_ops on POWER to make VFIO work
again on POWERPC64. Tested on PPC, kudos to Fred!

The tree with all prerequisites is here:
https://github.com/aik/linux/tree/kvm-fixes-wip

The previous discussion is here:
https://patchwork.ozlabs.org/project/linuxppc-dev/patch/20220707135552.3688927-1-aik@xxxxxxxxx/
https://patchwork.ozlabs.org/project/kvm-ppc/patch/20220701061751.1955857-1-aik@xxxxxxxxx/
https://lore.kernel.org/all/20220714081822.3717693-3-aik@xxxxxxxxx/T/

Please comment. Thanks.


This is based on sha1
ce888220d5c7 Linus Torvalds "Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi".

Please comment. Thanks.



Alexey Kardashevskiy (3):
   powerpc/iommu: Add "borrowing" iommu_table_group_ops
   powerpc/pci_64: Init pcibios subsys a bit later
   powerpc/iommu: Add iommu_ops to report capabilities and allow blocking
     domains

  arch/powerpc/include/asm/iommu.h          |   6 +-
  arch/powerpc/include/asm/pci-bridge.h     |   7 +
  arch/powerpc/platforms/pseries/pseries.h  |   4 +
  arch/powerpc/kernel/iommu.c               | 247 +++++++++++++++++++++-
  arch/powerpc/kernel/pci_64.c              |   2 +-
  arch/powerpc/platforms/powernv/pci-ioda.c |  36 +++-
  arch/powerpc/platforms/pseries/iommu.c    |  27 +++
  arch/powerpc/platforms/pseries/setup.c    |   3 +
  drivers/vfio/vfio_iommu_spapr_tce.c       |  96 ++-------
  9 files changed, 334 insertions(+), 94 deletions(-)


--
Alexey



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