RISC-V SBI console support

modulename: hvc_riscv_sbi.ko

configname: CONFIG_HVC_RISCV_SBI

Linux Kernel Configuration
└─>Device Drivers
└─>Character devices
└─>RISC-V SBI console support
In linux kernel since version 3.10 (release Date: 2013-06-30)  
This enables support for console output via RISC-V SBI calls, which
is normally used only during boot to output printk. This driver
conflicts with real console drivers and should not be enabled on
systems that directly access the console.

If you don't know what do to here, say N.

source code: