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User Details
- User Since
- Apr 10 2018, 10:49 AM (343 w, 16 h)
Apr 7 2021
Apr 7 2021
adrianlshaw added a comment to Twin-cpu.
Hi Martin. I was referring to PSA FF-M, not FF-A. See the spec here, in Section 2.1. TF-A conforms to FF-A, which is a different spec.
Apr 6 2021
Apr 6 2021
adrianlshaw added a comment to Twin-cpu.
If the NSPE can use all the ARMv8-M processors, then it makes sense to use a model similar to ARMv8-A. In that model, the request for a secure service is usually handled by the local core - no cross core interaction.
Apr 2 2021
Apr 2 2021
adrianlshaw added a comment to Twin-cpu.
Hi David. What about a scenario where non-secure applications want to use both cores? I think this is what Martin is asking about. Dedicating one M33 to act as a secure enclave can be considered a waste of compute resource (it will be idle most of the time).
Sep 5 2019
Sep 5 2019