• Permission fault, level 2 on MMU enable

    jcal93
    jcal93

    Hi ARM folks, hoping someone can show me where I'm going wrong programming the MMU. The ESR_EL1 reports that it is a Permission fault, level 2. Here's what I'm trying to accomplish:

    4GiB space, 4kiB granule flat identity mapped, divided like…

    • Answered
    • 4 months ago
    • Processors
    • Cortex-A / A-Profile forum
  • In Arm v7 mmu, stage2 translation cannot use short descriptors. WHY?

    Tanya_2016
    Tanya_2016

    ARM V7 document states: "In ARMv7-A short descriptors only be used at EL0 and EL1 stage 1 translations. They cannot, therefore, be used by hypervisors or Secure monitor code."

    Why stage2/hypervisors/secure monitor cannot use short descriptors…

    • Answered
    • over 1 year ago
    • Processors
    • Cortex-A / A-Profile forum
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