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CONFIG_ARM64_ERRATUM_1319367: Cortex-A57/A72: Speculative AT instruction using out-of-context translation regime could cause subsequent request to generate an incorrect translation

General informations

The Linux kernel configuration item CONFIG_ARM64_ERRATUM_1319367:

Help text

This option adds work arounds for ARM Cortex-A57 erratum 1319537 and A72 erratum 1319367

Cortex-A57 and A72 cores could end-up with corrupted TLBs by speculating an AT instruction during a guest context switch.

If unsure, say Y.

Hardware

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