24-28 August 2020
US/Pacific timezone

dma-iommu conversion work for the Intel VT-d driver

26 Aug 2020, 10:05
20m
Microconference2/Virtual-Room (LPC 2020)

Microconference2/Virtual-Room

LPC 2020

150
VFIO/IOMMU/PCI MC VFIO/IOMMU/PCI MC

Speaker

Thomas Murphy

Description

We can remove a lot of duplicated code from the Intel IOMMU driver by using the generic dma-iommu path for IO virtual address handling.

We have two main issues preventing us from merging this work. The intel i915 gpu driver doesn't handle scatter gather lists correctly and we need to work on a generic copy of the Intel IOMMU driver's bounce buffer code for untrusted devices.

This micro conference will be a great opportunity to get together with the relevant people in a (virtual) room and discuss open issues and how to make progress on that work so that it can eventually be merged.

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Primary author

Presentation Materials