I am using arm cortex a53 processor. I don't know how to exception level switching. What are the steps i have to follow?
已解决！ 转到解答。
You can refer this code in uboot:
https://elixir.bootlin.com/u-boot/latest/source/arch/arm/cpu/armv8/transition.S#L13
在原帖中查看解决方案
