:orphan:

.. title:: CONFIG_ARMV8_R

.. kconfig:: CONFIG_ARMV8_R

CONFIG_ARMV8_R
##############

*(No prompt -- not directly user assignable.)*

Type: ``bool``

Help
====

.. code-block:: none

    This option signifies the use of an ARMv8-R processor
    implementation.

    From https://developer.arm.com/products/architecture/cpu-architecture/r-profile:
    The Armv8-R architecture targets at the Real-time profile. It introduces
    virtualization at the highest security level while retaining the
    Protected Memory System Architecture (PMSA) based on a Memory Protection
    Unit (MPU). It supports the A32 and T32 instruction sets.

Direct dependencies
===================

\ :kconfig:`CPU_AARCH64_CORTEX_R <CONFIG_CPU_AARCH64_CORTEX_R>` && \ :kconfig:`ARM64 <CONFIG_ARM64>`

*(Includes any dependencies from ifs and menus.)*

Defaults
========

No defaults. Implicitly defaults to ``n``.

Symbols selected by this symbol
===============================

- \ :kconfig:`ATOMIC_OPERATIONS_BUILTIN <CONFIG_ATOMIC_OPERATIONS_BUILTIN>`
- \ :kconfig:`SCHED_IPI_SUPPORTED <CONFIG_SCHED_IPI_SUPPORTED>` if \ :kconfig:`SMP <CONFIG_SMP>`

Symbols that select this symbol
===============================

- \ :kconfig:`CPU_CORTEX_R82 <CONFIG_CPU_CORTEX_R82>`

Kconfig definition
==================



At ``<Zephyr Architecture>/arm64/core/Kconfig:126``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:39`` → ``<Zephyr Architecture>/Kconfig:12`` → ``<Zephyr Architecture>/arm64/Kconfig:32``

Menu path: (Top) → ARM64 Options

.. code-block:: kconfig

    config ARMV8_R
    	bool
    	select ATOMIC_OPERATIONS_BUILTIN
    	select SCHED_IPI_SUPPORTED if SMP
    	depends on CPU_AARCH64_CORTEX_R && ARM64
    	help
    	  This option signifies the use of an ARMv8-R processor
    	  implementation.
	  
    	  From https://developer.arm.com/products/architecture/cpu-architecture/r-profile:
    	  The Armv8-R architecture targets at the Real-time profile. It introduces
    	  virtualization at the highest security level while retaining the
    	  Protected Memory System Architecture (PMSA) based on a Memory Protection
    	  Unit (MPU). It supports the A32 and T32 instruction sets.

*(The 'depends on' condition includes propagated dependencies from ifs and menus.)*