dylanger Posted March 16, 2021 Share Posted March 16, 2021 Hi, Is TrustZone being utilized at all? I can't seem to find any documentation on what execution level Kobal is running at during boot. I assume it's dropping the Kernel into EL2? Cheers 0 Quote Link to comment Share on other sites More sharing options...
gprovost Posted March 17, 2021 Share Posted March 17, 2021 Hi, That's a good question and documentation is lacking on rockchip side on this matter. There is documentation on ARM Trusted Firmware, but not much on TrustZone. The only thing I can find is in Chinese (attached). 22 hours ago, dylanger said: I assume it's dropping the Kernel into EL2? Yes should be EL2 since there is not hypervisor running. Would be great to experiment with OP-TEE RockchipDeveloperGuideTrust_CN.pdf 0 Quote Link to comment Share on other sites More sharing options...
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