• Priority Drop and Deactivation Interrupts at EL2
    Hello I'm working on the Bootloader stage (EL2), I'm trying to enable Interrupts with gic v3 in that stage I've enabled routing IRQ, FIQ and Aborts from EL0, EL1 and EL2 to EL2 using these piece of...
  • Obtain CPU Temperature in Kernel
    Dear All, I am using a raspberry pi B+ that uses a Broadcom BCM2837 SoC with an ARMV8 processor. I want to get the cpu temperature in a Linux kernel file. Like in x86, I can use rdmsr_on_cpu function...
  • ARM Cortex-A53 System Register
    Hello, I wanted to check the value of following interrupt related registers i.e. ICC_IAR1_EL1 ICC_EOIR1_EL1 I'm able to find the ICC_IAR1_EL1 inside the CORTEXA53 hierarchy. But NOT able to...
  • ARMv8 AArch64: trapping hardware breakpoint to EL2
    Hi everyone! I want to set and then trap EL1 hardware breakpoints to EL2. I didn't perfectly understand if such an action is possible at all. In some places the documentation said that MDCR_EL2.TDE...
  • Reason Behind EL2 in non-secured state ARMv8
    Hi Experts, What is the reason behind allowing EL2 only in non-secured state in ARMv8 ? Regards, Techguyz