1/*
 2 * This file is subject to the terms and conditions of the GNU General Public
 3 * License.  See the file "COPYING" in the main directory of this archive
 4 * for more details.
 5 *
 6 * Copyright (C) 2013 Cavium, Inc.
 7 */
 8
 9#include <linux/kernel.h>
10#include <linux/virtio_console.h>
11#include <linux/kvm_para.h>
12#include <asm/setup.h>
13
14/*
15 * Emit one character to the boot console.
16 */
17void prom_putchar(char c)
18{
19	kvm_hypercall3(KVM_HC_MIPS_CONSOLE_OUTPUT, 0 /*  port 0 */,
20		(unsigned long)&c, 1 /* len == 1 */);
21}
22
23#ifdef CONFIG_VIRTIO_CONSOLE
24static int paravirt_put_chars(u32 vtermno, const char *buf, int count)
25{
26	kvm_hypercall3(KVM_HC_MIPS_CONSOLE_OUTPUT, vtermno,
27		(unsigned long)buf, count);
28
29	return count;
30}
31
32static int __init paravirt_cons_init(void)
33{
34	virtio_cons_early_init(paravirt_put_chars);
35	return 0;
36}
37core_initcall(paravirt_cons_init);
38
39#endif