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I.MX8.MINI(CORTEX A53) Unable to complete the conversion of exception level from EL2 to EL1

Unable to complete the conversion of exception level from EL2 to EL1,After executing ERET, the CPU hangs up. I don't know why. Here's the code:

 

I want to know if it's a code problem, or other problems, and how to transfer from EL2 to EL1!

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