:orphan:

.. title:: ARM_MPU

.. option:: CONFIG_ARM_MPU

*ARM MPU Support*

Type: ``bool``

Help
====

MCU implements Memory Protection Unit.
Note that NXP MPU as well as ARMv8-M MPU does not require MPU regions
to have power-of-two alignment for base address and region size.
In addition to the above, ARMv8-M MPU requires the active MPU regions
be non-overlapping.

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

\ :option:`CPU_HAS_MPU <CONFIG_CPU_HAS_MPU>` && \ :option:`ARM <CONFIG_ARM>`

*(Includes any dependencies from if's and menus.)*

Defaults
========

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

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

- \ :option:`MEMORY_PROTECTION <CONFIG_MEMORY_PROTECTION>` if \ :option:`CPU_HAS_MPU <CONFIG_CPU_HAS_MPU>` && \ :option:`ARM <CONFIG_ARM>`
- \ :option:`THREAD_STACK_INFO <CONFIG_THREAD_STACK_INFO>` if \ :option:`CPU_HAS_MPU <CONFIG_CPU_HAS_MPU>` && \ :option:`ARM <CONFIG_ARM>`
- \ :option:`ARCH_HAS_EXECUTABLE_PAGE_BIT <CONFIG_ARCH_HAS_EXECUTABLE_PAGE_BIT>` if \ :option:`CPU_HAS_MPU <CONFIG_CPU_HAS_MPU>` && \ :option:`ARM <CONFIG_ARM>`
- \ :option:`MPU_REQUIRES_POWER_OF_TWO_ALIGNMENT <CONFIG_MPU_REQUIRES_POWER_OF_TWO_ALIGNMENT>` if !(\ :option:`CPU_HAS_NXP_MPU <CONFIG_CPU_HAS_NXP_MPU>` || \ :option:`ARMV8_M_BASELINE <CONFIG_ARMV8_M_BASELINE>` || \ :option:`ARMV8_M_MAINLINE <CONFIG_ARMV8_M_MAINLINE>`) && \ :option:`CPU_HAS_MPU <CONFIG_CPU_HAS_MPU>` && \ :option:`ARM <CONFIG_ARM>`
- \ :option:`MPU_REQUIRES_NON_OVERLAPPING_REGIONS <CONFIG_MPU_REQUIRES_NON_OVERLAPPING_REGIONS>` if \ :option:`CPU_HAS_ARM_MPU <CONFIG_CPU_HAS_ARM_MPU>` && (\ :option:`ARMV8_M_BASELINE <CONFIG_ARMV8_M_BASELINE>` || \ :option:`ARMV8_M_MAINLINE <CONFIG_ARMV8_M_MAINLINE>`) && \ :option:`CPU_HAS_MPU <CONFIG_CPU_HAS_MPU>` && \ :option:`ARM <CONFIG_ARM>`

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

- \ :option:`SOC_SERIES_SAME70 <CONFIG_SOC_SERIES_SAME70>`
- \ :option:`ETH_MCUX <CONFIG_ETH_MCUX>`

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

.. highlight:: kconfig

At ``arch/arm/core/cortex_m/mpu/Kconfig:11``

Included via ``Kconfig:10`` → ``Kconfig.zephyr:29`` → ``arch/Kconfig:15`` → ``arch/arm/Kconfig:13`` → ``arch/arm/core/Kconfig:168``

Menu path: (top menu) → ARM Options

.. parsed-literal::

    config ARM_MPU
    	bool
    	prompt "ARM MPU Support" if \ :option:`CPU_HAS_MPU <CONFIG_CPU_HAS_MPU>` && \ :option:`ARM <CONFIG_ARM>`
    	select \ :option:`MEMORY_PROTECTION <CONFIG_MEMORY_PROTECTION>` if \ :option:`CPU_HAS_MPU <CONFIG_CPU_HAS_MPU>` && \ :option:`ARM <CONFIG_ARM>`
    	select \ :option:`THREAD_STACK_INFO <CONFIG_THREAD_STACK_INFO>` if \ :option:`CPU_HAS_MPU <CONFIG_CPU_HAS_MPU>` && \ :option:`ARM <CONFIG_ARM>`
    	select \ :option:`ARCH_HAS_EXECUTABLE_PAGE_BIT <CONFIG_ARCH_HAS_EXECUTABLE_PAGE_BIT>` if \ :option:`CPU_HAS_MPU <CONFIG_CPU_HAS_MPU>` && \ :option:`ARM <CONFIG_ARM>`
    	select \ :option:`MPU_REQUIRES_POWER_OF_TWO_ALIGNMENT <CONFIG_MPU_REQUIRES_POWER_OF_TWO_ALIGNMENT>` if !(\ :option:`CPU_HAS_NXP_MPU <CONFIG_CPU_HAS_NXP_MPU>` || \ :option:`ARMV8_M_BASELINE <CONFIG_ARMV8_M_BASELINE>` || \ :option:`ARMV8_M_MAINLINE <CONFIG_ARMV8_M_MAINLINE>`) && \ :option:`CPU_HAS_MPU <CONFIG_CPU_HAS_MPU>` && \ :option:`ARM <CONFIG_ARM>`
    	select \ :option:`MPU_REQUIRES_NON_OVERLAPPING_REGIONS <CONFIG_MPU_REQUIRES_NON_OVERLAPPING_REGIONS>` if \ :option:`CPU_HAS_ARM_MPU <CONFIG_CPU_HAS_ARM_MPU>` && (\ :option:`ARMV8_M_BASELINE <CONFIG_ARMV8_M_BASELINE>` || \ :option:`ARMV8_M_MAINLINE <CONFIG_ARMV8_M_MAINLINE>`) && \ :option:`CPU_HAS_MPU <CONFIG_CPU_HAS_MPU>` && \ :option:`ARM <CONFIG_ARM>`
    	depends on \ :option:`CPU_HAS_MPU <CONFIG_CPU_HAS_MPU>` && \ :option:`ARM <CONFIG_ARM>`
    	help
    	  MCU implements Memory Protection Unit.
    	  Note that NXP MPU as well as ARMv8-M MPU does not require MPU regions
    	  to have power-of-two alignment for base address and region size.
    	  In addition to the above, ARMv8-M MPU requires the active MPU regions
    	  be non-overlapping.

*(Definitions include propagated dependencies, including from if's and menus.)*