how does ARMv8 switch to run application(EL0) from kernel(EL1)?

hi experts, I am studying the ARMv8 exception levels. I have a question about ELs. EL1 is described to run OS kernel and EL0 is application level. The exception levels change only occur on exception...
how does ARMv8 switch to run application(EL0) from kernel(EL1)?

hi experts, I am studying the ARMv8 exception levels. I have a question about ELs. EL1 is described to run OS kernel and EL0 is application level. The exception levels change only occur on exception...
how to switch from EL3 to El1 inside u-boot before linux kernel?

linux requires EL1,however uboot is in EL3 mode.linux is halted.
how to switch from EL3 to El1 inside u-boot before linux kernel?

linux requires EL1,however uboot is in EL3 mode.linux is halted.
What are the necessary preconditions to load a guest into EL1 from EL2?

I have successfully moved from EL3 to EL2. After doing some initialization I am trying to move from EL2 into EL1 with a very simple guest image. My process looks like: Map EL1 memory into EL2 ...