Re: [PATCH v2 0/2] iommu/vt-d: Introduce rbtree for probed devices

From: Baolu Lu
Date: Mon Feb 26 2024 - 01:21:36 EST


On 2/20/24 2:59 PM, Lu Baolu wrote:
This is a follow-up to the discussion thread here:

https://lore.kernel.org/linux-iommu/20240201193427.GQ50608@xxxxxxxx/

This proposes a per-IOMMU red-black tree for iommu probed devices. It
benefits fault handling paths, where the VT-d hardware reports the
Source ID of the related device, and software needs to retrieve the
corresponding device pointer based on this ID.

This is also available at github:

https://github.com/LuBaolu/intel-iommu/commits/rbtree-for-device-info-v2

Change log:

v2:
- Drop get/put_device() in device_rbtree_find();
- Add a mutex to synchronize iopf report and device release paths.

v1:https://lore.kernel.org/linux-iommu/20240215072249.4465-1-baolu.lu@xxxxxxxxxxxxxxx/

Lu Baolu (2):
iommu/vt-d: Use rbtree to track iommu probed devices
iommu/vt-d: Use device rbtree in iopf reporting path

Above queued for v6.9.

Best regards,
baolu