• Unusual time in booting secondary cores on ARMV8 platform (Zynq MPSoc)
    Hi all, I am working on UltraZed-EG Starter Kit and trying to boot secondary A53 core from primary A53 core with an SMC call with 0xc4000003 as the identifier. I have measured the time taken to reach...
  • Setting PC for and waking up secondary cores from the primary core
    Given a multiprocessor system, how are the PC values of secondary cores set from the primary core? I've read lots of threads stating it can be done but without any details. I could not find anything in...
  • Looking for an eval board with octa core Armv8 CPU
    I am looking for an eval/development whatsoever board with at least 8 ARM64 cores and most important JTAG access to program it bare-metal. And best would be it is not too expensive (< 1000USD). Any...
  • ARMv8-A Instruction for Getting CPU Number
    Hi, I'm using a Juno r1 board and I'm trying to get processor's related CPU ID without using any header file like function sched_getcpu from sched.h . The reason is I want to get the CPU number for TrustZone...
  • 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...