Cortex-A57/A72: 1319537: Speculative AT instruction using out-of-context translation regime could cause subsequent request to generate an incorrect translation
configname: CONFIG_ARM64_ERRATUM_1319367
Linux Kernel Configuration
└─>
Kernel Features
└─>
ARM errata workarounds via the alternatives framework
└─>
Cortex-A57/A72: 1319537: Speculative AT instruction using out-of-context translation regime could cause subsequent request to generate an incorrect translation
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.
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.