CONFIG_RISCV_ISA_SVNAPOT is not available for thedefaultarchitecture x86.
Result is shown for architecture 64BIT or riscv
Svnapot extension support for supervisor mode NAPOT pages
configname: CONFIG_RISCV_ISA_SVNAPOT
Linux Kernel Configuration
└─>Platform type
└─>Svnapot extension support for supervisor mode NAPOT pages
In linux kernel since version 4.14.326 (release Date: 2023-09-23)
Allow kernel to detect the Svnapot ISA-extension dynamically at boot
time and enable its usage.
The Svnapot extension is used to mark contiguous PTEs as a range
of contiguous virtual-to-physical translations for a naturally
aligned power-of-2 (NAPOT) granularity larger than the base 4KB page
size. When HUGETLBFS is also selected this option unconditionally
allocates some memory for each NAPOT page size supported by the kernel.
When optimizing for low memory consumption and for platforms without
the Svnapot extension, it may be better to say N here.
If you don't know what to do here, say Y.
time and enable its usage.
The Svnapot extension is used to mark contiguous PTEs as a range
of contiguous virtual-to-physical translations for a naturally
aligned power-of-2 (NAPOT) granularity larger than the base 4KB page
size. When HUGETLBFS is also selected this option unconditionally
allocates some memory for each NAPOT page size supported by the kernel.
When optimizing for low memory consumption and for platforms without
the Svnapot extension, it may be better to say N here.
If you don't know what to do here, say Y.