cf9 662 arch/x86/kernel/reboot.c u8 cf9 = inb(0xcf9) & ~reboot_code; cf9 663 arch/x86/kernel/reboot.c outb(cf9|2, 0xcf9); /* Request hard reset */ cf9 666 arch/x86/kernel/reboot.c outb(cf9|reboot_code, 0xcf9);