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CONFIG_KERNEL_NOBP: Enable modified branch prediction for the kernel by default

General informations

The Linux kernel configuration item CONFIG_KERNEL_NOBP:

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If this option is selected the kernel will switch to a modified branch prediction mode if the firmware interface is available. The modified branch prediction mode improves the behaviour in regard to speculative execution.

With the option enabled the kernel parameter "nobp=0" or "nospec" can be used to run the kernel in the normal branch prediction mode.

With the option disabled the modified branch prediction mode is enabled with the "nobp=1" kernel parameter.

If unsure, say N.

Hardware

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