| David Daney | 18280ed | 2014-05-28 23:52:13 +0200 | [diff] [blame] | 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 | |
| 13 | /* |
| 14 | * Emit one character to the boot console. |
| 15 | */ |
| 16 | int prom_putchar(char c) |
| 17 | { |
| 18 | kvm_hypercall3(KVM_HC_MIPS_CONSOLE_OUTPUT, 0 /* port 0 */, |
| 19 | (unsigned long)&c, 1 /* len == 1 */); |
| 20 | |
| 21 | return 1; |
| 22 | } |
| 23 | |
| 24 | #ifdef CONFIG_VIRTIO_CONSOLE |
| 25 | static int paravirt_put_chars(u32 vtermno, const char *buf, int count) |
| 26 | { |
| 27 | kvm_hypercall3(KVM_HC_MIPS_CONSOLE_OUTPUT, vtermno, |
| 28 | (unsigned long)buf, count); |
| 29 | |
| 30 | return count; |
| 31 | } |
| 32 | |
| 33 | static int __init paravirt_cons_init(void) |
| 34 | { |
| 35 | virtio_cons_early_init(paravirt_put_chars); |
| 36 | return 0; |
| 37 | } |
| 38 | core_initcall(paravirt_cons_init); |
| 39 | |
| 40 | #endif |