Summary of Month

Plans

• Spec:

  • Fix-up compliance conformance

  • Publish PATCHv1 to virtio-comment list

• hvac-demo updates:

  • Rebase demo-amp-qemu-pci to Edgar’s QEMU RFC

  • Rebase all/most demos to align with Spec PATCHv1

  • Add demo-ffa-optee

  • Build AMD 5050A demo from hvac-demo repo

• virtio-msg-amp:

  • Reproduce ST Linux / Zephyr demo

  • Stretch: Implement new queue format in kernel and test kernel to kernel

Note: No meeting Jan 1!

Meeting January 15

Low attendance (3), did not go forward

Meeting January 29

Michael Riesch (Collabora)

• Using two RockPI v5 connected via cabled, one RC one EP

• Rockchip EP driver uses Linux PCI-EP subsystem so started with Mani’s work

• Working on virtio-gpu between the two systems, KMS mode setting is ~working

• (Bill shared) Edgar is starting to work on virtio-media on the AMD X86+Arm platform

• Edgar is going to look at implementing device owned memory sharing (virtio SHMEM) which is needed for virtio-media and will probibly be needed for virtio-gpu

Viresh SHARE vs LEND

• SHARE can use system heap

• Looks like LEND needs a special heap

• LEND: gets unmapped after it is shared, map, load encypted model, LEND (make unmappable), Secure decrypt

• Use case is ~= or == Secure Heap

• Move discusion to Google/Linaro meeting

Bertrand:

• Working on Xen to Xen w/ pure FF-A w/ QEMU

• Needs to filter/demux layer for indirect messages

• Private enhancements to virtio-msg FFA spec, events are buffered

• Event overflow: should eliminate the need