Public bug reported: For the DGX Spark product, the embedded controller (EC) communication happens through a new protocol. This protocol internally uses ARM FFA and FFH.
The spec for this protocol is still in draft stage and the documentation for it is available in https://github.com/OpenDevicePartnership/documentation/blob/main/bookshelf/Shelf%204%20Specifications/EC%20Interface/src/README.md https://github.com/OpenDevicePartnership/documentation/blob/main/bookshelf/Shelf%204%20Specifications/EC%20Interface/src/secure- ec-services-overview.md To unblock the DGX Spark, these patches add a custom downstream driver for EC secure services with ARM FFA. This driver won’t be upstreamed in mainline linux kernel in the current format. Once the final spec is released, then the upstream driver can be written accordingly. Note: The above spec is in draft stage, so we will update the driver as spec evolves. ** Affects: linux-nvidia-6.11 (Ubuntu) Importance: Undecided Status: New ** Affects: linux-nvidia-6.14 (Ubuntu) Importance: Undecided Status: New ** Also affects: linux-nvidia-6.14 (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2114230 Title: NVIDIA: SAUCE: Add FFA and EC Secure Service Driver to -nvidia kernel To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-nvidia-6.11/+bug/2114230/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
