| /* |
| * 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 |