Session to focus on open items related to iommufd and its path to upstream.
A short overview to ground the discussion in the current state of affairs followed by a discussion on any open points related to its design an implementation and to conclude what should be in the first merged series.
Should iommufd progress to be merged before the conference then this session would focus on the...
Running virtual machines with memory subscription and DMA device passthrough is a challenge:
1. If devices/IOMMUs don't support faults or ATS, the hypervisor can't know which pages to map to ensure that DMA will not fault.
2. VFIO pins all memory when the memory range is mapped for DMA; this makes overcommit a challenge!
We describe a solution to both of these problems:
- support VFIO...
PCIe Endpoint Framework is a relatively new framework added to Linux Kernel. There are two upstreamed generic function drivers added; one for PCIe Endpoint Test (simple test function to test the communication between root-complex and endpoint) and the other for providing NTB functionality to the host (two endpoints within SoC facilitate two hosts to communicate).
A new endpoint function was...
