CONFIG_SHARED_KERNEL: VM shared kernel support

General informations

The Linux kernel configuration item CONFIG_SHARED_KERNEL has multiple definitions:

VM shared kernel support found in arch/s390/Kconfig

The configuration item CONFIG_SHARED_KERNEL:

• prompt: VM shared kernel support
• type: bool
• depends on: ! CONFIG_JUMP_LABEL
• defined in arch/s390/Kconfig
• found in Linux kernels: 2.5.45–2.5.75, 2.6.0–2.6.39, 3.0–3.19, 4.0–4.14

Help text

Select this option, if you want to share the text segment of the Linux kernel between different VM guests. This reduces memory usage with lots of guests but greatly increases kernel size. Also if a kernel was IPL'ed from a shared segment the kexec system call will not work. You should only select this option if you know what you are doing and want to exploit this feature.

VM shared kernel support found in arch/s390x/Kconfig

The configuration item CONFIG_SHARED_KERNEL:

• prompt: VM shared kernel support
• type: bool
• depends on: (none)
• defined in arch/s390x/Kconfig
• found in Linux kernels: 2.5.45–2.5.67

Help text

Select this option, if you want to share the text segment of the Linux kernel between different VM guests. This reduces memory usage with lots of guests but greatly increases kernel size. You should only select this option if you know what you are doing and want to exploit this feature.

Hardware

LKDDb

Raw data from LKDDb:

• (none)

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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