[git pull] IOMMU Fixes for Linux v5.4-rc1

[Joerg Roedel <joro@8bytes.org>]

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Hi Linus,

The following changes since commit e95adb9add75affb98570a518c902f50e5fcce1b:

  Merge branches 'arm/omap', 'arm/exynos', 'arm/smmu', 'arm/mediatek', 'arm/qcom', 'arm/renesas', 'x86/amd', 'x86/vt-d' and 'core' into next (2019-09-11 12:39:19 +0200)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git tags/iommu-fixes-5.4-rc1

for you to fetch changes up to 2a78f9962565e53b78363eaf516eb052009e8020:

  iommu/amd: Lock code paths traversing protection_domain->dev_list (2019-09-28 14:44:13 +0200)

----------------------------------------------------------------
IOMMU Fixes for Linux v5.4-rc1

A couple of fixes for the AMD IOMMU driver have piled up:

	* Some fixes for the reworked IO page-table which caused memory
	  leaks or did not allow to downgrade mappings under some
	  conditions.

	* Locking fixes to fix a couple of possible races around
	  accessing 'struct protection_domain'. The races got introduced
	  when the dma-ops path became lock-less in the fast-path.

----------------------------------------------------------------
Andrei Dulea (4):
      iommu/amd: Fix pages leak in free_pagetable()
      iommu/amd: Fix downgrading default page-sizes in alloc_pte()
      iommu/amd: Introduce first_pte_l7() helper
      iommu/amd: Unmap all L7 PTEs when downgrading page-sizes

Filippo Sironi (1):
      iommu/amd: Wait for completion of IOTLB flush in attach_device

Joerg Roedel (6):
      iommu/amd: Remove domain->updated
      iommu/amd: Remove amd_iommu_devtable_lock
      iommu/amd: Take domain->lock for complete attach/detach path
      iommu/amd: Check for busy devices earlier in attach_device()
      iommu/amd: Lock dev_data in attach/detach code paths
      iommu/amd: Lock code paths traversing protection_domain->dev_list

 drivers/iommu/amd_iommu.c       | 229 ++++++++++++++++++++++++----------------
 drivers/iommu/amd_iommu_types.h |   4 +-
 2 files changed, 139 insertions(+), 94 deletions(-)

Please pull.

Thanks,

	Joerg

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