iMX8M Mini aarch64 to aarch64 Exception switching Issue

[Hariharan1]

Hi all,

I can able to switch exception aarch64(EL3) to aarch32(EL1) but unable to switch exception aarch64(EL3) to aarch64(EL1) in ARM Cortex a53.

There is any particular reason for these kind of issue. 

Thanks,