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TF-A Tech Forum

Thu Jan 27, 2022 4pm – 5pm United Kingdom Time
Bill Fletcher - creator

Agenda for Session on 27th January 2020

  • Introduction of Arm CCA Context Management
    • Session Presented by: Manish Pandey, Soby Mathew and Zelalem Aweke
    • Details: With the introduction of Arm CCA, the context management library needs to manage the context for one more world (realm world). Since the current context management library has evolved over time, some of design principles need sharpening / re-defining to make it easier to manage and make it less error-prone when managing the 3 worlds. The proposal lists down the design principles and discusses about introduction of new CPU Context for the root world (EL3). The refactor will increase the overall robustness of EL3 firmware as it will enforce a design pattern in software plus have a more predictable sysreg state during execution at EL3.

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