A64FX diag driver

modulename: a64fx-diag.ko

configname: CONFIG_A64FX_DIAG

Linux Kernel Configuration
└─>Device Drivers
└─>SOC (System On Chip) specific Drivers
└─>fujitsu SoC drivers
└─>A64FX diag driver
In linux kernel since version 6 (release Date: 2022-10-02)  
Say Y here if you want to enable diag interrupt on Fujitsu A64FX.
This driver enables BMC's diagnostic requests and enables
A64FX-specific interrupts. This allows administrators to obtain
kernel dumps via diagnostic requests using ipmitool, etc.

If unsure, say N.

source code: