CONFIG_RANDOMIZE_MEMORY_PHYSICAL_PADDING: Physical memory mapping padding

General informations

The Linux kernel configuration item CONFIG_RANDOMIZE_MEMORY_PHYSICAL_PADDING:

• prompt: Physical memory mapping padding
• type: hex
• depends on: ( CONFIG_EXPERT ) && ( CONFIG_RANDOMIZE_MEMORY ) && ( CONFIG_MEMORY_HOTPLUG )
• defined in arch/x86/Kconfig
• found in Linux kernels: 4.8–4.20, 5.0–5.19, 6.0–6.8, 6.9-rc+HEAD

Help text

Define the padding in terabytes added to the existing physical memory size during kernel memory randomization. It is useful for memory hotplug support but reduces the entropy available for address randomization.

If unsure, leave at the default value.

Hardware

LKDDb

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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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