trustzone

  1. M

    Thread [DEV][WIP]Bootloader unlock development[no unlock yet]

    ***This is not a bootloader unlock. This is only a discussion about a possible bootloader unlock*** So I've been following this blog for the past couple of weeks. The owner of the blog describes an exploit to run arbitrary code in trustzone kernel in msm8974 chipsets (post1, post2, post3)...
  2. S

    Thread what is the initialization flow process for mss8974 snapdragon?

    Greetings I found some great content on the Snapdragon family on xda, but it did not cover the initialization flow of the platform. My goal is learn how to interface with the TZ service, i.e. what API to use, which mode to be in to exchange traffic to and from the service, and what can be done...
  3. G

    Thread [Q] Successful Qualcomm MSM8960 bootloader unlock

    There is a detailed writeup of a successful bootloader unlock of Motorola MSM8960 phones, exploiting a vulnerability in the Motorola TrustZone kernel: http://blog.azimuthsecurity.com/2013/04/unlocking-motorola-bootloader.html Since TrustZone appears to be an ARM / Qualcomm technology, would it...
  4. Y

    Thread [Q] trustzone in nexus 4

    Hi, does anyone know how the arm trustzone extension is implemented in snapdragon s4? I am developing on google nexus 4 phone, which uses snapdragon s4 pro. in the kernel provided by google's AOSP, the platform dependant code (/kernel-msm/arch/arm/mach-msm) uses secure monitor call (smc) to...