:orphan:

.. title:: ARM_NONSECURE_FIRMWARE

.. option:: CONFIG_ARM_NONSECURE_FIRMWARE

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

Type: ``bool``

Help
====

This option indicates that we are building a Zephyr image that
is intended to execute in Non-Secure state. Execution of this
image is triggered by Secure firmware that executes in Secure
state. The option is only applicable to ARMv8-M MCUs that
implement the Security Extension.

This option enables Zephyr to include code that executes in
Non-Secure state only, as well as to exclude code that is
designed to execute only in Secure state.

Code executing in Non-Secure state has no access to Secure
resources of the Cortex-M MCU, and, therefore, it shall avoid
accessing them.

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

!\ :option:`ARM_SECURE_FIRMWARE <CONFIG_ARM_SECURE_FIRMWARE>` && \ :option:`ARMV8_M_SE <CONFIG_ARMV8_M_SE>` && !\ :option:`ARM64 <CONFIG_ARM64>` && \ :option:`ARM <CONFIG_ARM>`

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

Default
=======

- y if \ :option:`TRUSTED_EXECUTION_NONSECURE <CONFIG_TRUSTED_EXECUTION_NONSECURE>`

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

.. highlight:: kconfig

At ``arch/arm/core/aarch32/Kconfig:197``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:29`` → ``arch/Kconfig:12`` → ``arch/arm/Kconfig:42``

Menu path: (Top) → ARM Options

.. parsed-literal::

    config ARM_NONSECURE_FIRMWARE
    	bool
    	default y if \ :option:`TRUSTED_EXECUTION_NONSECURE <CONFIG_TRUSTED_EXECUTION_NONSECURE>`
    	depends on !\ :option:`ARM_SECURE_FIRMWARE <CONFIG_ARM_SECURE_FIRMWARE>` && \ :option:`ARMV8_M_SE <CONFIG_ARMV8_M_SE>` && !\ :option:`ARM64 <CONFIG_ARM64>` && \ :option:`ARM <CONFIG_ARM>`
    	help
    	  This option indicates that we are building a Zephyr image that
    	  is intended to execute in Non-Secure state. Execution of this
    	  image is triggered by Secure firmware that executes in Secure
    	  state. The option is only applicable to ARMv8-M MCUs that
    	  implement the Security Extension.
	  
    	  This option enables Zephyr to include code that executes in
    	  Non-Secure state only, as well as to exclude code that is
    	  designed to execute only in Secure state.
	  
    	  Code executing in Non-Secure state has no access to Secure
    	  resources of the Cortex-M MCU, and, therefore, it shall avoid
    	  accessing them.

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