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  • Cache clean of translation tables stops execution?

    Hi,

    I am currently working on an integrity enforcer running in a modified version of the ARM trusted firmware in EL3. To gain access to the memory I added 4 1GiB entries to the translation tables located in the TTBR0_EL3.

    Now I am trying to hook the pagefault…

  • how to return from exception generated by SMC instruction

    Hi,

    I am experimenting execution level switching on A53. I go from EL3->El2, then call SMC instruction to return to EL3. As soon as SMC instruction is executed, the processor enters EL3 mode and an exception is generated.

    I have written an exception…