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CONFIG_64BIT: 64-bit kernel

General informations

The Linux kernel configuration item CONFIG_64BIT has multiple definitions:

64 bit kernel found in arch/s390/Kconfig

The configuration item CONFIG_64BIT:

Help text

Select this option if you have an IBM z/Architecture machine and want to use the 64 bit addressing mode.

64-bit kernel found in arch/mips/Kconfig

The configuration item CONFIG_64BIT:

Help text

Select this option if you want to build a 64-bit kernel.

64-bit kernel found in arch/parisc/Kconfig

The configuration item CONFIG_64BIT:

Help text

Enable this if you want to support 64bit kernel on PA-RISC platform.

At the moment, only people willing to use more than 2GB of RAM, or having a 64bit-only capable PA-RISC machine should say Y here.

Since there is no 64bit userland on PA-RISC, there is no point to enable this option otherwise. The 64bit kernel is significantly bigger and slower than the 32bit one.

64-bit kernel found in arch/sparc/Kconfig

The configuration item CONFIG_64BIT:

Help text

SPARC is a family of RISC microprocessors designed and marketed by Sun Microsystems, incorporated. They are very widely found in Sun workstations and clones.

Say yes to build a 64-bit kernel - formerly known as sparc64 Say no to build a 32-bit kernel - formerly known as sparc

64-bit kernel found in arch/x86/Kconfig

The configuration item CONFIG_64BIT:

Help text

Say yes to build a 64-bit kernel - formerly known as x86_64 Say no to build a 32-bit kernel - formerly known as i386

64-bit kernel found in arch/x86/um/Kconfig

The configuration item CONFIG_64BIT:

Help text

(none)

found in arch/alpha/Kconfig

The configuration item CONFIG_64BIT:

Help text

(none)

found in arch/arm64/Kconfig

The configuration item CONFIG_64BIT:

Help text

(none)

found in arch/ia64/Kconfig

The configuration item CONFIG_64BIT:

Help text

(none)

found in arch/mips/Kconfig

The configuration item CONFIG_64BIT:

Help text

(none)

found in arch/parisc/Kconfig

The configuration item CONFIG_64BIT:

Help text

(none)

found in arch/powerpc/Kconfig

The configuration item CONFIG_64BIT:

Help text

(none)

found in arch/ppc64/Kconfig

The configuration item CONFIG_64BIT:

Help text

(none)

found in arch/s390/Kconfig

The configuration item CONFIG_64BIT:

Help text

(none)

found in arch/sparc64/Kconfig

The configuration item CONFIG_64BIT:

Help text

(none)

found in arch/tile/Kconfig

The configuration item CONFIG_64BIT:

Help text

(none)

found in arch/um/Kconfig.i386

The configuration item CONFIG_64BIT:

Help text

(none)

found in arch/um/Kconfig.x86

The configuration item CONFIG_64BIT:

Help text

(none)

found in arch/um/Kconfig.x86_64

The configuration item CONFIG_64BIT:

Help text

(none)

found in arch/um/Kconfig_i386

The configuration item CONFIG_64BIT:

Help text

(none)

found in arch/um/Kconfig_x86_64

The configuration item CONFIG_64BIT:

Help text

(none)

found in arch/x86/um/Kconfig

The configuration item CONFIG_64BIT:

Help text

(none)

found in arch/x86_64/Kconfig

The configuration item CONFIG_64BIT:

Help text

(none)

Hardware

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