CONFIG_ERRATA_STARFIVE_JH7100 is not available for thedefaultarchitecture x86.
Result is shown for architecture riscv

StarFive JH7100 support

configname: CONFIG_ERRATA_STARFIVE_JH7100

Linux Kernel Configuration
└─>CPU errata selection
└─>StarFive JH7100 support
In linux kernel since version 6.8 (release Date: 2024-03-10)  
The StarFive JH7100 was a test chip for the JH7110 and has
caches that are non-coherent with respect to peripheral DMAs.
It was designed before the Zicbom extension so needs non-standard
cache operations through the SiFive cache controller.

Say "Y" if you want to support the BeagleV Starlight and/or
StarFive VisionFive V1 boards.