TrustZone TZASC configuration

Dear developers,

I’m working on the Xavier board and OP-TEE and I could not find any reference regarding the configuration of the TZASC security mechanism, which isolates the secure memory (for the secure world) from the normal world.

Could you please point me in the right direction to either observe the source code which configured the TZARC, or indicate whether the memory is not protected?


hello james276,

it’s carveout.tzdram.size in the cfg file, tegra194-mb1-bct-misc-l4t.cfg.
please see-also similar discussion threads for reference, Topic 218909.

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