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CONFIG_ARM64_CNP: Enable support for Common Not Private (CNP) translations

General informations

The Linux kernel configuration item CONFIG_ARM64_CNP:

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Common Not Private (CNP) allows translation table entries to be shared between different PEs in the same inner shareable domain, so the hardware can use this fact to optimise the caching of such entries in the TLB.

Selecting this option allows the CNP feature to be detected at runtime, and does not affect PEs that do not implement this feature.

Hardware

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