CONFIG_ARM64_ERRATUM_2441007 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm64
Cortex-A55: Completion of affected memory accesses might not be guaranteed by completion of a TLBI
configname: CONFIG_ARM64_ERRATUM_2441007
Linux Kernel Configuration
└─>Kernel Features
└─>ARM errata workarounds via the alternatives framework
└─>Cortex-A55: Completion of affected memory accesses might not be guaranteed by completion of a TLBI
In linux kernel since version 4.14.326 (release Date: 2023-09-23)
This option adds a workaround for ARM Cortex-A55 erratum #2441007.
Under very rare circumstances, affected Cortex-A55 CPUs
may not handle a race between a break-before-make sequence on one
CPU, and another CPU accessing the same page. This could allow a
store to a page that has been unmapped.
Work around this by adding the affected CPUs to the list that needs
TLB sequences to be done twice.
If unsure, say Y.
Under very rare circumstances, affected Cortex-A55 CPUs
may not handle a race between a break-before-make sequence on one
CPU, and another CPU accessing the same page. This could allow a
store to a page that has been unmapped.
Work around this by adding the affected CPUs to the list that needs
TLB sequences to be done twice.
If unsure, say Y.