• How to handle Interrupt with certain interrupt ID in Arm Trusted Firmware
    Hi, I'm new to Arm Community. Regarding to trusted firmware document, it seems that I cannot register an interrupt handler with certain interrupt ID. They reserved the id parameter as INTR_ID_UNAVAILABLE...
  • Inconsistent shareability domain on tlbi instructions
    I'm using a IMX8QM system which features a dual-core A72 cluster plus a quad-core A53 cluster. Running on EL2 from one of the A53 cores I want to unmap a single page for all cores, so after I remove the...
  • SMC flow on ARMv8
    Hi everyone, Wherever I go on internet, the thing I read is that when SMC instruction is executed an exception is generated, it takes you to the highest exception level (EL3) where secure monitor is...
  • Digital design flow (synthesis)
    In our product, cortex-m0 is internal digital block 1. After synthesis, inout ports such as P0, P1, will be inferred as tri-state logic(TLAT). Is it ok? or please provide the recommanded method. 2. For...
  • 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...