:orphan:

.. title:: CONFIG_TFM_ISOLATION_LEVEL

.. kconfig:: CONFIG_TFM_ISOLATION_LEVEL

CONFIG_TFM_ISOLATION_LEVEL
##########################

*Isolation level setting.*

Type: ``int``

Help
====

.. code-block:: none

    Manually set the required TFM isolation level. Possible values are
    1,2 or 3; the default is set by build configuration. When TF-M
    Profile option is supplied, do not allow manual setting of the
    isolation level, as it is determined by the profile setting.
    As isolation levels 2 and 3 require PSA_API (TFM_IPC) support,
    force level 1 when TFM_IPC is not enabled.

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

\ :kconfig:`BUILD_WITH_TFM <CONFIG_BUILD_WITH_TFM>` && \ :kconfig:`BUILD_WITH_TFM <CONFIG_BUILD_WITH_TFM>` && 0

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

Defaults
========

- 1 if \ :kconfig:`TFM_PROFILE_TYPE_SMALL <CONFIG_TFM_PROFILE_TYPE_SMALL>` || !\ :kconfig:`TFM_IPC <CONFIG_TFM_IPC>`
- 2 if \ :kconfig:`TFM_PROFILE_TYPE_MEDIUM <CONFIG_TFM_PROFILE_TYPE_MEDIUM>`
- 3 if \ :kconfig:`TFM_PROFILE_TYPE_LARGE <CONFIG_TFM_PROFILE_TYPE_LARGE>`

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



At ``<External Modules>/trusted-firmware-m/Kconfig.tfm:126``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:33`` → ``<External Modules>/Kconfig:74`` → ``<External Modules>/trusted-firmware-m/Kconfig:7``

Menu path: (Top) → Modules → Build with TF-M as the Secure Execution Environment

.. code-block:: kconfig

    config TFM_ISOLATION_LEVEL
    	int "Isolation level setting." if TFM_PROFILE_TYPE_NOT_SET && TFM_IPC
    	range 1 3
    	default 1 if TFM_PROFILE_TYPE_SMALL || !TFM_IPC
    	default 2 if TFM_PROFILE_TYPE_MEDIUM
    	default 3 if TFM_PROFILE_TYPE_LARGE
    	depends on BUILD_WITH_TFM && BUILD_WITH_TFM && 0
    	help
    	  Manually set the required TFM isolation level. Possible values are
    	  1,2 or 3; the default is set by build configuration. When TF-M
    	  Profile option is supplied, do not allow manual setting of the
    	  isolation level, as it is determined by the profile setting.
    	  As isolation levels 2 and 3 require PSA_API (TFM_IPC) support,
    	  force level 1 when TFM_IPC is not enabled.

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