:orphan:

.. title:: CONFIG_X86_COMMON_PAGE_TABLE

.. kconfig:: CONFIG_X86_COMMON_PAGE_TABLE

CONFIG_X86_COMMON_PAGE_TABLE
############################

*Use a single page table for all threads*

Type: ``bool``

Help
====

.. code-block:: none

    If this option is enabled, userspace memory domains will not have their
    own page tables. Instead, context switching operations will modify
    page tables in place. This is much slower, but uses much less RAM
    for page tables.

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

\ :kconfig:`USERSPACE <CONFIG_USERSPACE>` && !\ :kconfig:`SMP <CONFIG_SMP>` && !\ :kconfig:`X86_KPTI <CONFIG_X86_KPTI>` && \ :kconfig:`X86 <CONFIG_X86>`

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

Default
=======

- n

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



At ``<Zephyr Architecture>/x86/Kconfig:346``

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

Menu path: (Top) → X86 Architecture Options

.. code-block:: kconfig

    config X86_COMMON_PAGE_TABLE
    	bool "Use a single page table for all threads"
    	default n
    	depends on USERSPACE && !SMP && !X86_KPTI && X86
    	help
    	  If this option is enabled, userspace memory domains will not have their
    	  own page tables. Instead, context switching operations will modify
    	  page tables in place. This is much slower, but uses much less RAM
    	  for page tables.

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