• Juno MMU setup
    Hi, I was trying to change my MMU setup from 39bit address space to 40bit address space in Juno. Previously I was successfully able to map 39bit address space by setting T0SZ=25 and using L1 level...
  • Why does it fail to switch from EL3 to SVC mode ?
    (1) I intrrrupt the cpu in UEFI (EL2) by press enter key when the serial outputs the following message. NOTICE:  Booting Trusted Firmware NOTICE:  BL1: v1.0(release):14b6608 NOTICE:  BL1: Built : 14:15...
  • Can I route debug exceptions (like software step exceptions) from lower exception level to EL3?
    In the manual of arm-v8a, it mentions that the debug exceptions could be routed to EL1 or EL2. However, i don't really want to implement EL2 on Juno, so is there anyway to route these exceptions to EL3...
  • Can I print information from EL3 / ARM-TF with Juno board?
    Hi there, After setting up the board followed by the instruction , I connect both UART ports with my computer. For my board one port shows normal world output while other one shows OP-TEE output. ...
  • read memory in EL3
    Hello, I want to read a memory(kmalloc in kernel) in EL3, and I have get the PA of memory. But I can't read it. Why? Thanks.