[PATCH v2 00/17] Fix BUG_ON in vfio_iommu_group_notifier()

From: Lu Baolu <baolu.lu@linux.intel.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Joerg Roedel <joro@8bytes.org>,
	Alex Williamson <alex.williamson@redhat.com>,
	Bjorn Helgaas <bhelgaas@google.com>,
	Jason Gunthorpe <jgg@nvidia.com>,
	Christoph Hellwig <hch@infradead.org>,
	Kevin Tian <kevin.tian@intel.com>,
	Ashok Raj <ashok.raj@intel.com>
Cc: kvm@vger.kernel.org, rafael@kernel.org,
	David Airlie <airlied@linux.ie>,
	linux-pci@vger.kernel.org,
	Thierry Reding <thierry.reding@gmail.com>,
	Diana Craciun <diana.craciun@oss.nxp.com>,
	Will Deacon <will@kernel.org>, Stuart Yoder <stuyoder@gmail.com>,
	Jonathan Hunter <jonathanh@nvidia.com>,
	Chaitanya Kulkarni <kch@nvidia.com>,
	Dan Williams <dan.j.williams@intel.com>,
	Cornelia Huck <cohuck@redhat.com>,
	linux-kernel@vger.kernel.org, Li Yang <leoyang.li@nxp.com>,
	iommu@lists.linux-foundation.org,
	Jacob jun Pan <jacob.jun.pan@intel.com>,
	Daniel Vetter <daniel@ffwll.ch>,
	Robin Murphy <robin.murphy@arm.com>
Subject: [PATCH v2 00/17] Fix BUG_ON in vfio_iommu_group_notifier()
Date: Sun, 28 Nov 2021 10:50:34 +0800	[thread overview]
Message-ID: <20211128025051.355578-1-baolu.lu@linux.intel.com> (raw)

The original post and intent of this series is here.
https://lore.kernel.org/linux-iommu/20211115020552.2378167-1-baolu.lu@linux.intel.com/

Change log:
v1: initial post
  - https://lore.kernel.org/linux-iommu/20211115020552.2378167-1-baolu.lu@linux.intel.com/

v2:
  - Move kernel dma ownership auto-claiming from driver core to bus
    callback. [Greg/Christoph/Robin/Jason]
    https://lore.kernel.org/linux-iommu/20211115020552.2378167-1-baolu.lu@linux.intel.com/T/#m153706912b770682cb12e3c28f57e171aa1f9d0c

  - Code and interface refactoring for iommu_set/release_dma_owner()
    interfaces. [Jason]
    https://lore.kernel.org/linux-iommu/20211115020552.2378167-1-baolu.lu@linux.intel.com/T/#mea70ed8e4e3665aedf32a5a0a7db095bf680325e

  - [NEW]Add new iommu_attach/detach_device_shared() interfaces for
    multiple devices group. [Robin/Jason]
    https://lore.kernel.org/linux-iommu/20211115020552.2378167-1-baolu.lu@linux.intel.com/T/#mea70ed8e4e3665aedf32a5a0a7db095bf680325e

  - [NEW]Use iommu_attach/detach_device_shared() in drm/tegra drivers.

  - Refactoring and description refinement.

This is based on v5.16-rc2 and available on github:
https://github.com/LuBaolu/intel-iommu/commits/iommu-dma-ownership-v2

Best regards,
baolu

Jason Gunthorpe (2):
  vfio: Delete the unbound_list
  drm/tegra: Use the iommu dma_owner mechanism

Lu Baolu (15):
  iommu: Add device dma ownership set/release interfaces
  driver core: Add dma_unconfigure callback in bus_type
  PCI: Add driver dma ownership management
  driver core: platform: Add driver dma ownership management
  amba: Add driver dma ownership management
  bus: fsl-mc: Add driver dma ownership management
  PCI: pci_stub: Suppress kernel DMA ownership auto-claiming
  PCI: portdrv: Suppress kernel DMA ownership auto-claiming
  iommu: Add security context management for assigned devices
  iommu: Expose group variants of dma ownership interfaces
  iommu: Add iommu_at[de]tach_device_shared() for multi-device groups
  vfio: Set DMA USER ownership for VFIO devices
  vfio: Remove use of vfio_group_viable()
  vfio: Remove iommu group notifier
  iommu: Remove iommu group changes notifier

 include/linux/amba/bus.h              |   1 +
 include/linux/device/bus.h            |   3 +
 include/linux/fsl/mc.h                |   5 +
 include/linux/iommu.h                 |  93 ++++++--
 include/linux/pci.h                   |   5 +
 include/linux/platform_device.h       |   1 +
 drivers/amba/bus.c                    |  30 ++-
 drivers/base/dd.c                     |   7 +-
 drivers/base/platform.c               |  30 ++-
 drivers/bus/fsl-mc/fsl-mc-bus.c       |  26 +-
 drivers/gpu/drm/tegra/dc.c            |   1 +
 drivers/gpu/drm/tegra/drm.c           |  55 ++---
 drivers/gpu/drm/tegra/gr2d.c          |   1 +
 drivers/gpu/drm/tegra/gr3d.c          |   1 +
 drivers/gpu/drm/tegra/vic.c           |   1 +
 drivers/iommu/iommu.c                 | 329 ++++++++++++++++++++------
 drivers/pci/pci-driver.c              |  21 ++
 drivers/pci/pci-stub.c                |   1 +
 drivers/pci/pcie/portdrv_pci.c        |   2 +
 drivers/vfio/fsl-mc/vfio_fsl_mc.c     |   1 +
 drivers/vfio/pci/vfio_pci.c           |   1 +
 drivers/vfio/platform/vfio_amba.c     |   1 +
 drivers/vfio/platform/vfio_platform.c |   1 +
 drivers/vfio/vfio.c                   | 248 ++-----------------
 24 files changed, 502 insertions(+), 363 deletions(-)

-- 
2.25.1

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