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  • dsb and dmb

    Hi all:

    I have some questions about DMB and DSB in armv8.

    (1)

    In armv8 Reference Manual doc, it says "The DMB instruction does not ensure the completion of any of the memory accesses for which it ensures relative order".

    But in ARM Cortex-A…

  • Transition to secure monitor flow on ARMv8

    Hi everyone,

    Wherever I go on internet, the thing I read is that when SMC instruction is executed an exception is generated, it takes you to the highest exception level (EL3) where secure monitor is running.

    In ARM v8 vector table, given on ARMv8-A architecture…

  • [新闻稿]ARM为高端移动体验树立全新标杆

    新闻要点:

    ·         基于ARMv8-A架构的最新处理器ARM® Cortex®-A72，性能较五年前的处理器提升50倍

    ·         最新ARM CoreLink™ CCI-500高速缓存一致性互连（Cache Coherent Interconnect）允许更大的系统带宽…

  • Critical interrupts

    In software there are often cases where you need to have critical interrupts serviced. For example, for:

    • Code profiling
    • Kernel debugging
    • Watchdog handling
    • Error handling.

    With the ARMv7-M architecture this can be achieved using nested interrupt handlers, but…