• Can the linux  boot up without arm-trusted-firmware if the trustzone is not necessary ?
    Hi experts,      I am trying to boot the linux by my bootloader which is running on EL3 level.(switch to EL1 when I jump to the kernel)      The trustzone is not necessay for me, so I don't want to use...
  • Trustzone and caches
    Hi, this question is following my work on the PL310 L2 cache of an imx6 board (see The specified item was not found. ). We are developing a secure OS that will run alongside Linux. At boot, our secure...
  • MPU vs TrustZone-M
    When you are securing a firmware or an application code , it boils down to protecting the portion of memory with MPU. When and why would I use TrustZone-M for securing the firmware when I can actually...
  • JTAG to TrustZone Cortex-M33
    Hey evryone, I have a question in component security context. I program my MCU from a JTAG port. I also have a secure UART device in RX to display in hyper terminal. Can an attacker get access to...
  • TrustZone environment for ARMv8-M?
    I want to work the TrustZone program for ARMv8-M. Is there TrustZone environment for ARMv8-M? (ex. software emulator.) I used Foundation_Platformpkg for ARMv8-A. Similar environment is available?