Tag: Security

Official Block Diagram

• 1. ARMv7

• 2. ARMv8

• (1) aarch32

• (2) aarch64

• (3) Summary of arch32 and aarch64

• (4) Understanding with Code

• 3. Cortex-A9 architecture

1. ARMv7

2. ARMv8

(1) aarch32

(2) aarch64

(3) Summary of arch32 and aarch64

Understanding aarch32 and aarch64 under armv7:

• If both secureos and monitor are 64-bit, secureos runs at el1, monitor runs at el3;

• If both secureos and monitor are 32-bit, both run at EL3 (secureos