:orphan:

.. title:: choice: Virtual address space size

.. _choice_139:

.. describe:: choice: Virtual address space size

*Virtual address space size*

Type: ``bool``

Help
====

.. code-block:: none

    Allows choosing one of multiple possible virtual address
    space sizes. The level of translation table is determined by
    a combination of page size and virtual address space size.

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

\ :option:`ARM_MMU <CONFIG_ARM_MMU>` && (\ :option:`CPU_CORTEX_A <CONFIG_CPU_CORTEX_A>` || \ :option:`CPU_AARCH64_CORTEX_R <CONFIG_CPU_AARCH64_CORTEX_R>`) && \ :option:`ARM64 <CONFIG_ARM64>`

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

Default
=======

- \ :option:`ARM64_VA_BITS_32 <CONFIG_ARM64_VA_BITS_32>`

Choice options
==============

- \ :option:`ARM64_VA_BITS_32 <CONFIG_ARM64_VA_BITS_32>`
- \ :option:`ARM64_VA_BITS_36 <CONFIG_ARM64_VA_BITS_36>`
- \ :option:`ARM64_VA_BITS_40 <CONFIG_ARM64_VA_BITS_40>`
- \ :option:`ARM64_VA_BITS_42 <CONFIG_ARM64_VA_BITS_42>`
- \ :option:`ARM64_VA_BITS_48 <CONFIG_ARM64_VA_BITS_48>`

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



At ``<Zephyr Architecture>/arm64/core/Kconfig:179``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:29`` → ``<Zephyr Architecture>/Kconfig:12`` → ``<Zephyr Architecture>/arm64/Kconfig:32``

Menu path: (Top) → ARM64 Options

.. code-block:: kconfig

    choice
    	bool "Virtual address space size"
    	default ARM64_VA_BITS_32
    	depends on ARM_MMU && (CPU_CORTEX_A || CPU_AARCH64_CORTEX_R) && ARM64
    	help
    	  Allows choosing one of multiple possible virtual address
    	  space sizes. The level of translation table is determined by
    	  a combination of page size and virtual address space size.

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