CONFIG_PPC_E500 is not available for thedefaultarchitecture x86.
Result is shown for architecture powerpc

CONFIG_PPC_E500 (not configurable)

modulename: e500.ko

and/or

e500_hugetlbpage.ko

and/or

shared.ko

and/or

cpu_setup_e500.ko

configname: CONFIG_PPC_E500

Linux Kernel Configuration
└─>Processor support
└─>PPC_E500
In linux kernel since version 4.14.326 (release Date: 2023-09-23)  
source code:
arch/powerpc/mm/nohash/e500.c