projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 18280eda DD |
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 |