CONFIG_ARM64_ERRATUM_3117295 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm64

Cortex-A510: 3117295: workaround for speculatively executed unprivileged load

configname: CONFIG_ARM64_ERRATUM_3117295

Linux Kernel Configuration
└─>Kernel Features
└─>ARM errata workarounds via the alternatives framework
└─>Cortex-A510: 3117295: workaround for speculatively executed unprivileged load
In linux kernel since version 6.1.76 (release Date: 2024-01-31)  
This option adds the workaround for ARM Cortex-A510 erratum 3117295.

On an affected Cortex-A510 core, a speculatively executed unprivileged
load might leak data from a privileged level via a cache side channel.

Work around this problem by executing a TLBI before returning to EL0.

If unsure, say Y.