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Support for FF-A direct messages
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Description

This will involve figuring out how direct messages interact with the rest of the scheduling model, e.g. SPCI_RUN. There are a probably a bunch of complicated corner cases.

Jose started work on this in https://hafnium-review.googlesource.com/c/hafnium/+/7644 but I think it would be helpful to think through the scheduling issues and interaction with the rest of the system in a design doc first.

(Migrated from b/132422396.)

Event Timeline

odeprez renamed this task from Support for SPCI direct messages to Support for FF-A direct messages.Mon, Jun 29, 1:50 PM
odeprez claimed this task.EditedMon, Jun 29, 2:02 PM

Pursuing Jose's early work through Google's gerrit interface.
We'll provide more design details in the shared SPM doc.