Specification of BTINFO_CONSOLE value in bootinfo.h

[deco33000%yandex.com@localhost]

Hello,

I was reading the boot code to make netbsd multiboot compliant.

What defines those values in arch/x86/include/bootinfo.h, e.g. BTINFO_CONSOLE,BTINFO_BOOTDISK.. is it the MBR ? the netbsd bootloader ?
I mean, the value of 6 for BTINFO_CONSOLE can be found in which specification ? Could not find out.

Thanks

-- 
Jog