TrustZone TZASC configuration

james276 · May 5, 2023, 10:42am

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?

Thanks!
Cheers

JerryChang · May 8, 2023, 5:45am

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.

system · May 30, 2023, 2:36am

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TrustZone TZASC configuration

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