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