I have been trying an rpi3 Exception level tutorial from https://github.com/bztsrc/raspi3-tutori ... tionlevel/ .
But some how in the the assembly code start.S switching from El level 2 to El level 1 does not work and results in no serial output in Minicom
And wen i print my current El it gives me 00000003.
in specific the following code is causing me an error
Could any one help me with this and also point me to some related links
Code: Select all
mov x2, #0x3c4 msr spsr_el2, x2 adr x2, 5f msr elr_el2, x2 eret