CONFIG_KEXEC: Enable kexec system call

General informations

The Linux kernel configuration item CONFIG_KEXEC has multiple definitions:

Enable kexec system call found in kernel/Kconfig.kexec

The configuration item CONFIG_KEXEC:

• prompt: Enable kexec system call
• type: bool
• depends on: CONFIG_ARCH_SUPPORTS_KEXEC
• defined in kernel/Kconfig.kexec
• found in Linux kernels: 6.6–6.17, 6.18-rc+HEAD

Help text

kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot but it is independent of the system firmware. And like a reboot you can start any kernel with it, not just Linux.

The name comes from the similarity to the exec system call.

It is an ongoing process to be certain the hardware in a machine is properly shutdown, so do not be surprised if this code does not initially work for you. As of this writing the exact hardware interface is strongly in flux, so no good recommendation can be made.

kexec system call (EXPERIMENTAL) found in arch/sh/Kconfig

The configuration item CONFIG_KEXEC:

• prompt: kexec system call (EXPERIMENTAL)
• type: bool
• depends on: CONFIG_MMU
• defined in arch/sh/Kconfig
• found in Linux kernels: 2.6.16–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.5

Help text

kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot but it is independent of the system firmware. And like a reboot you can start any kernel with it, not just Linux.

The name comes from the similarity to the exec system call.

It is an ongoing process to be certain the hardware in a machine is properly shutdown, so do not be surprised if this code does not initially work for you. As of this writing the exact hardware interface is strongly in flux, so no good recommendation can be made.

Kexec system call (EXPERIMENTAL) found in arch/arm/Kconfig

The configuration item CONFIG_KEXEC:

• prompt: Kexec system call (EXPERIMENTAL)
• type: bool
• depends on: ((! CONFIG_SMP || CONFIG_PM_SLEEP_SMP )) && ( CONFIG_MMU )
• defined in arch/arm/Kconfig
• found in Linux kernels: 2.6.21–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.5

Help text

kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot but it is independent of the system firmware. And like a reboot you can start any kernel with it, not just Linux.

It is an ongoing process to be certain the hardware in a machine is properly shutdown, so do not be surprised if this code does not initially work for you.

kexec system call found in arch/x86/Kconfig

The configuration item CONFIG_KEXEC:

• prompt: kexec system call
• type: bool
• depends on: (none)
• defined in arch/x86/Kconfig
• found in Linux kernels: 2.6.24–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.5

Help text

kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot but it is independent of the system firmware. And like a reboot you can start any kernel with it, not just Linux.

The name comes from the similarity to the exec system call.

It is an ongoing process to be certain the hardware in a machine is properly shutdown, so do not be surprised if this code does not initially work for you. As of this writing the exact hardware interface is strongly in flux, so no good recommendation can be made.

Kexec system call found in arch/riscv/Kconfig

The configuration item CONFIG_KEXEC:

• prompt: Kexec system call
• type: bool
• depends on: CONFIG_MMU
• defined in arch/riscv/Kconfig
• found in Linux kernels: 5.13–5.19, 6.0–6.5

Help text

kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot but it is independent of the system firmware. And like a reboot you can start any kernel with it, not just Linux.

The name comes from the similarity to the exec system call.

kexec system call found in arch/powerpc/Kconfig

The configuration item CONFIG_KEXEC:

• prompt: kexec system call
• type: bool
• depends on: CONFIG_PPC_BOOK3S || CONFIG_PPC_E500 || ( CONFIG_44x && ! CONFIG_SMP )
• defined in arch/powerpc/Kconfig
• found in Linux kernels: 3.9–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.5

Help text

kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot but it is independent of the system firmware. And like a reboot you can start any kernel with it, not just Linux.

The name comes from the similarity to the exec system call.

It is an ongoing process to be certain the hardware in a machine is properly shutdown, so do not be surprised if this code does not initially work for you. As of this writing the exact hardware interface is strongly in flux, so no good recommendation can be made.

Kexec system call found in arch/parisc/Kconfig

The configuration item CONFIG_KEXEC:

• prompt: Kexec system call
• type: bool
• depends on: (none)
• defined in arch/parisc/Kconfig
• found in Linux kernels: 5.4–5.19, 6.0–6.5

Help text

kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot but it is independent of the system firmware. And like a reboot you can start any kernel with it, not just Linux.

It is an ongoing process to be certain the hardware in a machine shutdown, so do not be surprised if this code does not initially work for you.

Kexec system call found in arch/mips/Kconfig

The configuration item CONFIG_KEXEC:

• prompt: Kexec system call
• type: bool
• depends on: (none)
• defined in arch/mips/Kconfig
• found in Linux kernels: 3.9–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.5

Help text

kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot but it is independent of the system firmware. And like a reboot you can start any kernel with it, not just Linux.

The name comes from the similarity to the exec system call.

It is an ongoing process to be certain the hardware in a machine is properly shutdown, so do not be surprised if this code does not initially work for you. As of this writing the exact hardware interface is strongly in flux, so no good recommendation can be made.

kexec system call found in arch/m68k/Kconfig

The configuration item CONFIG_KEXEC:

• prompt: kexec system call
• type: bool
• depends on: CONFIG_M68KCLASSIC && CONFIG_MMU
• defined in arch/m68k/Kconfig
• found in Linux kernels: 3.14–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.5

Help text

kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot but it is independent of the system firmware. And like a reboot you can start any kernel with it, not just Linux.

The name comes from the similarity to the exec system call.

It is an ongoing process to be certain the hardware in a machine is properly shutdown, so do not be surprised if this code does not initially work for you. As of this writing the exact hardware interface is strongly in flux, so no good recommendation can be made.

Kexec system call found in arch/loongarch/Kconfig

The configuration item CONFIG_KEXEC:

• prompt: Kexec system call
• type: bool
• depends on: (none)
• defined in arch/loongarch/Kconfig
• found in Linux kernels: 6.1–6.5

Help text

kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot but it is independent of the system firmware. And like a reboot you can start any kernel with it, not just Linux.

The name comes from the similarity to the exec system call.

kexec system call found in arch/ia64/Kconfig

The configuration item CONFIG_KEXEC:

• prompt: kexec system call
• type: bool
• depends on: ! CONFIG_SMP || CONFIG_HOTPLUG_CPU
• defined in arch/ia64/Kconfig
• found in Linux kernels: 3.9–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.5

Help text

kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot but it is independent of the system firmware. And like a reboot you can start any kernel with it, not just Linux.

The name comes from the similarity to the exec system call.

It is an ongoing process to be certain the hardware in a machine is properly shutdown, so do not be surprised if this code does not initially work for you. As of this writing the exact hardware interface is strongly in flux, so no good recommendation can be made.

kexec system call found in arch/arm64/Kconfig

The configuration item CONFIG_KEXEC:

• prompt: kexec system call
• type: bool
• depends on: CONFIG_PM_SLEEP_SMP
• defined in arch/arm64/Kconfig
• found in Linux kernels: 4.8–4.20, 5.0–5.19, 6.0–6.5

Help text

kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot but it is independent of the system firmware. And like a reboot you can start any kernel with it, not just Linux.

found in arch/s390/Kconfig

The configuration item CONFIG_KEXEC:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/s390/Kconfig
• found in Linux kernels: 3.7–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.5

Help text

(none)

kexec system call found in arch/tile/Kconfig

The configuration item CONFIG_KEXEC:

• prompt: kexec system call
• type: bool
• depends on: (none)
• defined in arch/tile/Kconfig
• found in Linux kernels: 2.6.36–2.6.39, 3.0–3.19, 4.0–4.16

Help text

kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot but it is independent of the system firmware. It is used to implement the "mboot" Tilera booter.

The name comes from the similarity to the exec system call.

kexec system call (EXPERIMENTAL) found in arch/powerpc/Kconfig

The configuration item CONFIG_KEXEC:

• prompt: kexec system call (EXPERIMENTAL)
• type: bool
• depends on: ( CONFIG_PPC_BOOK3S || CONFIG_FSL_BOOKE || ( CONFIG_44x && ! CONFIG_SMP )) && CONFIG_EXPERIMENTAL
• defined in arch/powerpc/Kconfig
• found in Linux kernels: 2.6.15–2.6.39, 3.0–3.8

Help text

kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot but it is independent of the system firmware. And like a reboot you can start any kernel with it, not just Linux.

The name comes from the similarity to the exec system call.

It is an ongoing process to be certain the hardware in a machine is properly shutdown, so do not be surprised if this code does not initially work for you. It may help to enable device hotplugging support. As of this writing the exact hardware interface is strongly in flux, so no good recommendation can be made.

Kexec system call (EXPERIMENTAL) found in arch/mips/Kconfig

The configuration item CONFIG_KEXEC:

• prompt: Kexec system call (EXPERIMENTAL)
• type: bool
• depends on: CONFIG_EXPERIMENTAL
• defined in arch/mips/Kconfig
• found in Linux kernels: 2.6.20–2.6.39, 3.0–3.8

Help text

kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot but it is independent of the system firmware. And like a reboot you can start any kernel with it, not just Linux.

The name comes from the similarity to the exec system call.

It is an ongoing process to be certain the hardware in a machine is properly shutdown, so do not be surprised if this code does not initially work for you. It may help to enable device hotplugging support. As of this writing the exact hardware interface is strongly in flux, so no good recommendation can be made.

kexec system call (EXPERIMENTAL) found in arch/ia64/Kconfig

The configuration item CONFIG_KEXEC:

• prompt: kexec system call (EXPERIMENTAL)
• type: bool
• depends on: CONFIG_EXPERIMENTAL && ! CONFIG_IA64_HP_SIM && (! CONFIG_SMP || CONFIG_HOTPLUG_CPU )
• defined in arch/ia64/Kconfig
• found in Linux kernels: 2.6.20–2.6.39, 3.0–3.8

Help text

kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot but it is independent of the system firmware. And like a reboot you can start any kernel with it, not just Linux.

The name comes from the similarity to the exec system call.

It is an ongoing process to be certain the hardware in a machine is properly shutdown, so do not be surprised if this code does not initially work for you. It may help to enable device hotplugging support. As of this writing the exact hardware interface is strongly in flux, so no good recommendation can be made.

kexec system call found in arch/s390/Kconfig

The configuration item CONFIG_KEXEC:

• prompt: kexec system call
• type: bool
• depends on: (none)
• defined in arch/s390/Kconfig
• found in Linux kernels: 2.6.19–2.6.39, 3.0–3.6

Help text

kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot but is independent of hardware/microcode support.

kexec system call (EXPERIMENTAL) found in arch/ppc/Kconfig

The configuration item CONFIG_KEXEC:

• prompt: kexec system call (EXPERIMENTAL)
• type: bool
• depends on: CONFIG_EXPERIMENTAL
• defined in arch/ppc/Kconfig
• found in Linux kernels: 2.6.13–2.6.26

Help text

kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot but it is independent of the system firmware. And like a reboot you can start any kernel with it, not just Linux.

The name comes from the similarity to the exec system call.

It is an ongoing process to be certain the hardware in a machine is properly shutdown, so do not be surprised if this code does not initially work for you. It may help to enable device hotplugging support. As of this writing the exact hardware interface is strongly in flux, so no good recommendation can be made.

In the GameCube implementation, kexec allows you to load and run DOL files, including kernel and homebrew DOLs.

kexec system call found in arch/x86_64/Kconfig

The configuration item CONFIG_KEXEC:

• prompt: kexec system call
• type: bool
• depends on: (none)
• defined in arch/x86_64/Kconfig
• found in Linux kernels: 2.6.19–2.6.23

Help text

kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot but it is independent of the system firmware. And like a reboot you can start any kernel with it, not just Linux.

The name comes from the similarity to the exec system call.

It is an ongoing process to be certain the hardware in a machine is properly shutdown, so do not be surprised if this code does not initially work for you. It may help to enable device hotplugging support. As of this writing the exact hardware interface is strongly in flux, so no good recommendation can be made.

kexec system call found in arch/i386/Kconfig

The configuration item CONFIG_KEXEC:

• prompt: kexec system call
• type: bool
• depends on: (none)
• defined in arch/i386/Kconfig
• found in Linux kernels: 2.6.19–2.6.23

Help text

kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot but it is independent of the system firmware. And like a reboot you can start any kernel with it, not just Linux.

The name comes from the similarity to the exec system call.

It is an ongoing process to be certain the hardware in a machine is properly shutdown, so do not be surprised if this code does not initially work for you. It may help to enable device hotplugging support. As of this writing the exact hardware interface is strongly in flux, so no good recommendation can be made.

kexec system call (EXPERIMENTAL) found in arch/x86_64/Kconfig

The configuration item CONFIG_KEXEC:

• prompt: kexec system call (EXPERIMENTAL)
• type: bool
• depends on: CONFIG_EXPERIMENTAL
• defined in arch/x86_64/Kconfig
• found in Linux kernels: 2.6.13–2.6.18

Help text

kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot but it is independent of the system firmware. And like a reboot you can start any kernel with it, not just Linux.

The name comes from the similarity to the exec system call.

It is an ongoing process to be certain the hardware in a machine is properly shutdown, so do not be surprised if this code does not initially work for you. It may help to enable device hotplugging support. As of this writing the exact hardware interface is strongly in flux, so no good recommendation can be made.

kexec system call (EXPERIMENTAL) found in arch/s390/Kconfig

The configuration item CONFIG_KEXEC:

• prompt: kexec system call (EXPERIMENTAL)
• type: bool
• depends on: CONFIG_EXPERIMENTAL
• defined in arch/s390/Kconfig
• found in Linux kernels: 2.6.13–2.6.18

Help text

kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot but is independent of hardware/microcode support.

kexec system call (EXPERIMENTAL) found in arch/i386/Kconfig

The configuration item CONFIG_KEXEC:

• prompt: kexec system call (EXPERIMENTAL)
• type: bool
• depends on: CONFIG_EXPERIMENTAL
• defined in arch/i386/Kconfig
• found in Linux kernels: 2.6.13–2.6.18

Help text

kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot but it is independent of the system firmware. And like a reboot you can start any kernel with it, not just Linux.

The name comes from the similarity to the exec system call.

It is an ongoing process to be certain the hardware in a machine is properly shutdown, so do not be surprised if this code does not initially work for you. It may help to enable device hotplugging support. As of this writing the exact hardware interface is strongly in flux, so no good recommendation can be made.

kexec system call (EXPERIMENTAL) found in arch/ppc64/Kconfig

The configuration item CONFIG_KEXEC:

• prompt: kexec system call (EXPERIMENTAL)
• type: bool
• depends on: CONFIG_PPC_MULTIPLATFORM && CONFIG_EXPERIMENTAL
• defined in arch/ppc64/Kconfig
• found in Linux kernels: 2.6.13–2.6.14

Help text

kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot but it is indepedent of the system firmware. And like a reboot you can start any kernel with it, not just Linux.

The name comes from the similiarity to the exec system call.

It is an ongoing process to be certain the hardware in a machine is properly shutdown, so do not be surprised if this code does not initially work for you. It may help to enable device hotplugging support. As of this writing the exact hardware interface is strongly in flux, so no good recommendation can be made.

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