CONFIG_ARM64_ERRATUM_1742098 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm64
Cortex-A57/A72: 1742098: ELR recorded incorrectly on interrupt taken between cryptographic instructions in a sequence
configname: CONFIG_ARM64_ERRATUM_1742098
Linux Kernel Configuration
└─>Kernel Features
└─>ARM errata workarounds via the alternatives framework
└─>Cortex-A57/A72: 1742098: ELR recorded incorrectly on interrupt taken between cryptographic instructions in a sequence
In linux kernel since version 4.9.3 (release Date: 2017-01-12)
This option removes the AES hwcap for aarch32 user-space to
workaround erratum 1742098 on Cortex-A57 and Cortex-A72.
Affected parts may corrupt the AES state if an interrupt is
taken between a pair of AES instructions. These instructions
are only present if the cryptography extensions are present.
All software should have a fallback implementation for CPUs
that don't implement the cryptography extensions.
If unsure, say Y.
workaround erratum 1742098 on Cortex-A57 and Cortex-A72.
Affected parts may corrupt the AES state if an interrupt is
taken between a pair of AES instructions. These instructions
are only present if the cryptography extensions are present.
All software should have a fallback implementation for CPUs
that don't implement the cryptography extensions.
If unsure, say Y.