• Can I make ETM and PMU secure access only?
    ARMv8 manual says that we can make system register access to trace registers and PMU registers trap to EL3. However, ETM and PMU in Juno can be accessed through memory-mapping interface. Is there anyway...
  • How to check the enable status in ETM v3.3
    Hi all, I am trying to use the ETM on iMX53 qsb, which contains a Cortex-A8 processor. In the board, the trace result of the ETM is outputted to both ETB and TPIU via an ATB replicator, looks like the...
  • Is there any ETMs supporting data trace in the market?
    The manual of ETM tells that the ETM supports data trace. However, we checked the manual of Juno board and most recent Cortex A75 processors, and found that the data trace is not implemented. Currently...
  • How to use ETM to trace PMU events?
    According to the manual, we can select PMU events as external input resource of ETM. However, the manual does not describe it in detail, and my attempts also failed. To perform the experiment, i configure...
  • Hardware suggestion to work on TrustZone in Android
    Note: This was originally posted on 29th August 2011 at http://forums.arm.com Hi everybody, For my MSc thesis I have to work on ARM TrustZone and the idea is to use it in Android OS (2.3+). I'm pretty...