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kernel add
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/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2013 Cavium, Inc.
*/
#include <linux/kernel.h>
#include <linux/virtio_console.h>
#include <linux/kvm_para.h>
/*
* Emit one character to the boot console.
*/
int prom_putchar(char c)
{
kvm_hypercall3(KVM_HC_MIPS_CONSOLE_OUTPUT, 0 /* port 0 */,
(unsigned long)&c, 1 /* len == 1 */);
return 1;
}
#ifdef CONFIG_VIRTIO_CONSOLE
static int paravirt_put_chars(u32 vtermno, const char *buf, int count)
{
kvm_hypercall3(KVM_HC_MIPS_CONSOLE_OUTPUT, vtermno,
(unsigned long)buf, count);
return count;
}
static int __init paravirt_cons_init(void)
{
virtio_cons_early_init(paravirt_put_chars);
return 0;
}
core_initcall(paravirt_cons_init);
#endif
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