• TZC-400 Memory Regions Question
    Hi experts, Based on the manual of TZC-400 , we could set up at most 8 regions with different security settings. However, I'm wondering, when a normal world(non-secure) application read or write a specific...
  • TZC-400 Region Secure Access Discussion
    Hi experts, I know for the TZC-400 each region has an attribute register which has two bits:  s_wr_en   and s_wr_en for controlling secure access. On the other hand, these control registers could be changed...
  • Where are CPU with SMMU ?
    Hi there, when I was looking for a platform to evaluate virtualization on armv8, Juno was there with TZ and plenty of SMMU. That's fine. Now, i am looking for an application processor to build a product...
  • How Does the Secure World Work with Multicore System?
    Hi experts, From my experience, for the single-core architecture, once we enter the secure world, the normal world would be paused. However, I'm not sure how does secure world is scheduled for the...
  • How to set the CPU affinity of Secure OS for Juno r1?
    Hi experts, I'm using the Juno r1 board with Linaro OPTEE released normal OS + secure OS. After some tests, I find that every time when the Client Application (CA) calls the function of a Trusted...