• How to configure Cortex-A57 PMU
    I asked this question in a different community space but it seemed like this is a more appropriate home. I'm trying to configure the performance counters for the Cortex-A57 and I'm very confused. The...
  • Using ARM TrustZone OS in the UEFI
    I think community is familiar with a BIOS's replacement which is UEFI. I found that UEFI contains the module with name SMM (System Management Mode), which is running at the highest priority exception...
  • Processor Modes in cortex-A57
    Hi, I have done some basic assembly in Armv7-A processors (cortex A9). The version of ARM supports modes like User, sys, SVC etc. Does the ARMv8 also has the similar modes? Where can i find the details...
  • SIGILL in 32bit chroot on Cortex-A57
    I'm getting a SIGILL when running a ARMv6 program in a chroot environment. The instruction that triggers it is Program received signal SIGILL, Illegal instruction. 0x000104f0 in f () (gdb) disassemble...
  • Can we reset L2 subsystem for cortex-A57?
    My system hosts 4x clusters, each with 4x cpus A57 connected through interconnect CCN504. I have a special case in which I need to reset L2 sybsystem (L2 is 2MB in my case) from inside SPL Uboot running...