CONFIG_PPC_PROT_SAO_LPAR: Support PROT_SAO mappings in LPARs

General informations

The Linux kernel configuration item CONFIG_PPC_PROT_SAO_LPAR:

• prompt: Support PROT_SAO mappings in LPARs
• type: bool
• depends on: CONFIG_PPC_BOOK3S_64
• defined in arch/powerpc/Kconfig
• found in Linux kernels: 5.9–5.19, 6.0–6.12, 6.13-rc+HEAD

Help text

This option adds support for PROT_SAO mappings from userspace inside LPARs on supported CPUs.

This may cause issues when performing guest migration from a CPU that supports SAO to one that does not.

If unsure, say N here.

Hardware

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The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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