• How to know if the processor is in EL0 state on armv8?
    Hi Fellows, I want to determine in code, if the processor is in EL0 mode or not. I read CurrentEL register to do this but if my code is running from EL0, it throws an exception since we can't access...
  • Purpose of EL0 EL1 ..
    Hi all, ARMV8 has number of exception levels as EL0 , EL1, EL2, EL3 .. How this is managed and what is the exact use case of the same ?
  • ARMv8 mmu problem
    Hi ARM experts, I have a problem in using armv8 mmu in bare-metal system: When using the 4KB translation granule, level 1 table which use D_Block convert VA to 1GB region PA. In Armv8 ARM page D4-1744...
  • ARMv8-A:TrustZone and MMU
    I wonder how VA->PA translation is handled from non-secure world with Aarch64. I see the HYP mode uses IPA so that the second stage translation may restrict the VM to certain memory. But what about limiting...
  • ARMv8 EL1 MMU
    Hi,     I am working on bootloader porting to ARM v8 platform. I am facing a problem in enabling MMU in execution level-1 EL1. I am not able to set sctlr_el1.M bit when ever i try to set this bit the...