CONFIG_ARM64_ERRATUM_1418040 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm64
Cortex-A76/Neoverse-N1: MRC read following MRRC read of specific Generic Timer in AArch32 might give incorrect result
configname: CONFIG_ARM64_ERRATUM_1418040
Linux Kernel Configuration
└─>Kernel Features
└─>ARM errata workarounds via the alternatives framework
└─>Cortex-A76/Neoverse-N1: MRC read following MRRC read of specific Generic Timer in AArch32 might give incorrect result
In linux kernel since version 5.1 (release Date: 2019-05-05)
This option adds a workaround for ARM Cortex-A76/Neoverse-N1
errata 1188873 and 1418040.
Affected Cortex-A76/Neoverse-N1 cores (r0p0 to r3p1) could
cause register corruption when accessing the timer registers
from AArch32 userspace.
If unsure, say Y.
errata 1188873 and 1418040.
Affected Cortex-A76/Neoverse-N1 cores (r0p0 to r3p1) could
cause register corruption when accessing the timer registers
from AArch32 userspace.
If unsure, say Y.