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

From: Alexey Kardashevskiy <aik@ozlabs.ru>
To: linuxppc-dev@lists.ozlabs.org
Cc: kvm@vger.kernel.org, Nicholas Piggin <npiggin@gmail.com>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Jason Gunthorpe <jgg@ziepe.ca>,
	Frederic Barrat <fbarrat@linux.ibm.com>,
	Alexey Kardashevskiy <aik@ozlabs.ru>,
	Alex Williamson <alex.williamson@redhat.com>,
	kvm-ppc@vger.kernel.org
Subject: [PATCH kernel v2 0/3] powerpc/iommu: Add iommu_ops to report capabilities and allow blocking domains
Date: Tue, 20 Sep 2022 23:04:54 +1000	[thread overview]
Message-ID: <20220920130457.29742-1-aik@ozlabs.ru> (raw)

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@ozlabs.ru/
https://patchwork.ozlabs.org/project/kvm-ppc/patch/20220701061751.1955857-1-aik@ozlabs.ru/
https://lore.kernel.org/all/20220714081822.3717693-3-aik@ozlabs.ru/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(-)

-- 
2.37.3