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mssun avatar mssun commented on August 15, 2024

Thanks for the report. I'm not sure the root cause in your case.

I can see from the log showing that the TA has been crated and the session opened successfully.

[+] TA create
[+] TA open session

To help you debug this issue, the problem should be in invoking command in the secure world. Maybe there're some differences for the invoking command API in the newer version.

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xiangmy avatar xiangmy commented on August 15, 2024

Hi @mssun ,

Thanks for the reply! I dug in recently, and I think this is because the optee changes the TA entry point since a73b5878c8. They removed the TA entry point from ta_header. So, we have to link the TAs against __utee_entry, or __ta_entry in optee 3.8, as the entry point (though I'm not sure how to do this in rust because I'm new to rust). So before I proceed, I want to ask your options on my thought. Any advice will be helpful.

Thanks,
Mingyuan

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xiangmy avatar xiangmy commented on August 15, 2024

Hi @mssun ,

I've fixed the entry pointer problem. I have to add a few linking arguments and change the linker script according to optee 3.8. Anyway, the hello_world can compile with optee_os 3.8 and run with optee 3.8 now, though I haven't tried other TAs yet. I can submit a P/R if you like.

Thanks,
Mingyuan

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mssun avatar mssun commented on August 15, 2024

Sure, I'm happy to take any PR. Thanks.

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mssun avatar mssun commented on August 15, 2024

I believe this PR can be also closed because of recent PR about OPTEE update.

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