linux/arch/um/kernel/early_printk.c

36 lines
812 B
C

/*
* Copyright (C) 2011 Richard Weinberger <richrd@nod.at>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/console.h>
#include <linux/init.h>
#include <os.h>
static void early_console_write(struct console *con, const char *s, unsigned int n)
{
um_early_printk(s, n);
}
static struct console early_console_dev = {
.name = "earlycon",
.write = early_console_write,
.flags = CON_BOOT,
.index = -1,
};
static int __init setup_early_printk(char *buf)
{
if (!early_console) {
early_console = &early_console_dev;
register_console(&early_console_dev);
}
return 0;
}
early_param("earlyprintk", setup_early_printk);