[PATCH v4 00/24] iommu/arm-smmu-v3: Quarantine device upon ATC invalidation timeout
Tian, Kevin
kevin.tian at intel.com
Tue May 19 20:59:43 PDT 2026
> From: Nicolin Chen <nicolinc at nvidia.com>
> Sent: Tuesday, May 19, 2026 11:39 AM
>
> Changelog
> v4:
> * Rebase on Joerg's IOMMU "fixes" branch
> * Rebase on Jason's SMMUv3 cmd_ent series
> https://lore.kernel.org/all/0-v2-47b2bf710ad5+716ac-
> smmu_no_cmdq_ent_jgg at nvidia.com/
> * [PCI] Don't suspend IOMMU in probe mode
> * [iommu] kfree_rcu() iommu_group
> * [iommu] Convert gdev->blocked to enum gdev_blocked
> * [iommu] Use disable_work_sync() to fix UAF and ref leak
> * [iommu] Gate done() transitions to preserve BLOCKED_BROKEN
> * [iommu] Decrement recovery_cnt when unplugging a blocked gdev
> * [iommu] Drop racy dev_has_iommu() in iommu_report_device_broken()
> * [iommu] Add gdev->broken_pending to skip worker after racing recovery
> * [smmuv3] Add master->ats_invs scratch
> * [smmuv3] Add arm_smmu_cmdq_batch_issue() wrapper
> * [smmuv3] Force per-flush sync for has_ats batches
> * [smmuv3] Serialize STE.EATS and ats_broken updates
> * [smmuv3] Co-clear pending CMDQ_ERR from cmdq issuer
> * [smmuv3] Add invs and has_ats to arm_smmu_cmdq_batch
> * [smmuv3] Move arm_smmu_invs_for_each_entry to header
> * [smmuv3] Set master->ats_broken after clearing STE.EATS
> * [smmuv3] Issue CFGI_STE via arm_smmu_cmdq_issue_cmd_with_sync()
> * [smmuv3] Keep "smmu" pointer in arm_smmu_inv but add "master" for
> ATS
Not check the detail yet, but this v4 more than doubles the number of
patches in v3. Are they all necessary to be in one series? any chance to
split to ease the review...
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