CONFIG_PPC_64S_HASH_MMU is not available for thedefaultarchitecture x86.
Result is shown for architecture powerpc

Hash MMU Support

modulename: hashpagetable.ko

configname: CONFIG_PPC_64S_HASH_MMU

Linux Kernel Configuration
└─>Processor support
└─>Hash MMU Support
In linux kernel since version 4.14.326 (release Date: 2023-09-23)  
Enable support for the Power ISA Hash style MMU. This is implemented
by all IBM Power and other 64-bit Book3S CPUs before ISA v3.0. The
OpenPOWER ISA does not mandate the hash MMU and some CPUs do not
implement it (e.g., Microwatt).

Note that POWER9 PowerVM platforms only support the hash
MMU. From POWER10 radix is also supported by PowerVM.

If you're unsure, say Y.

source code: