This bug is awaiting verification that the linux-
nvidia-6.11/6.11.0-1011.11 kernel in -proposed solves the problem.
Please test the kernel and update this bug with the results. If the
problem is solved, change the tag 'verification-needed-noble-linux-
nvidia-6.11' to 'verification-done-noble-linux-nvidia-6.11'. If the
problem still exists, change the tag 'verification-needed-noble-linux-
nvidia-6.11' to 'verification-failed-noble-linux-nvidia-6.11'.


If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.


See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: kernel-spammed-noble-linux-nvidia-6.11-v2 
verification-needed-noble-linux-nvidia-6.11

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Packages, which is subscribed to linux-nvidia-6.11 in Ubuntu.
https://bugs.launchpad.net/bugs/2114230

Title:
  NVIDIA: SAUCE: Add FFA and EC Secure Service Driver to -nvidia kernel

Status in linux-nvidia-6.11 package in Ubuntu:
  Invalid
Status in linux-nvidia-6.14 package in Ubuntu:
  Invalid
Status in linux-nvidia-6.11 source package in Noble:
  Fix Committed
Status in linux-nvidia-6.14 source package in Noble:
  Fix Committed

Bug description:
  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.

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