CONFIG_X86_5LEVEL: Enable 5-level page tables support

General informations

The Linux kernel configuration item CONFIG_X86_5LEVEL:

• prompt: Enable 5-level page tables support
• type: bool
• depends on: CONFIG_X86_64
• defined in arch/x86/Kconfig
• found in Linux kernels: 4.14–4.20, 5.0–5.19, 6.0–6.12

Help text

5-level paging enables access to larger address space: up to 128 PiB of virtual address space and 4 PiB of physical address space.

It will be supported by future Intel CPUs.

A kernel with the option enabled can be booted on machines that support 4- or 5-level paging.

See Documentation/arch/x86/x86_64/5level-paging.rst for more information.

Say N if unsure.

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The data is retrived from:

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• Linux Kernel Driver DataBase (LKDDb)

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