Running multiple tee on Hikey 960

[a2t2]

Hello,

I wanted to ask if its possible to run multiple instances of tee on the hikey 960 board.

Related:
Page 38: https://globalplatform.org/wp-content/uploads/2018/09/GPD_tee_SystemArch_v1.1.0.10-for-v1.2_PublicReview.pdf
Page 18: https://www.securetechalliance.org/wp-content/uploads/tee-101-White-Paper-FINAL2-April-2018.pdf

Thanks

[danielt]

Same as:

Running multiple tee on Hikey

To run multiple instances of tee (or multiple trusted OS), we need proper resource partitioning in secure world which could be achieved via some sort of hypervisor in secure world like we have in normal world (EL2). Secure EL2 (secure virtualization extensions) is added via recent ARMv8.4 architecture [1] which is not supported by hikey620. And I am not sure if there is any publicly available SoC supporting this secure world extension. Also, current open source software software stack (TF-A a…

ARMv8.4 is very new and it will likely be a long time before ARMv8.4 silicon reaches the market. To put it into context the Cortex-A75 core (which is starting to appear in high end designs) implements ARMv8.2.