Hi:
If CPU is in secure state, and calling the none-secure world method. Dose this allowed or it will generat a security fault
Hi Grent:
Thanks for you reply.
One thing want to know is that, If calling NS world method directly (which is in none-secure memory setup by SAU), for example using BL not BLNS to branch to a none-secure method address, will this leading to secure fault.
I didn’t realize that the question was about trustzone on v8-m. On v8-a, it is doable as long as the region is set as executable for both worlds by TZASC.