ARMv8 manual says that we can make system register access to trace registers and PMU registers trap to EL3. However, ETM and PMU in Juno can be accessed through memory-mapping interface. Is there anyway to make the memory-mapping access also trapping to EL3 or secure only?
Also, I found that TrustZone Protection Controller should be able to control the accessibility of peripherals, does Juno contain TZPC?
View all questions in Arm Development Platforms forum