From patchwork Wed Oct 21 09:25:04 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [7/9] Implement early printk in virtio-console Date: Tue, 20 Oct 2009 23:25:04 -0000 From: Alexander Graf X-Patchwork-Id: 36508 Message-Id: <1256117106-9475-8-git-send-email-agraf@suse.de> To: qemu-devel Cc: Carsten Otte On our S390x Virtio machine we don't have anywhere to display early printks on, because we don't know about VGA or serial ports. So instead we just forward everything to the virtio console that we created anyways. Signed-off-by: Alexander Graf --- hw/virtio-console.c | 7 +++++++ hw/virtio-console.h | 2 ++ 2 files changed, 9 insertions(+), 0 deletions(-) diff --git a/hw/virtio-console.c b/hw/virtio-console.c index 57f8f89..cd6cf20 100644 --- a/hw/virtio-console.c +++ b/hw/virtio-console.c @@ -105,6 +105,13 @@ static void vcon_event(void *opaque, int event) /* we will ignore any event for the time being */ } +void virtio_console_print_early(VirtIODevice *vdev, uint8_t *buf) +{ + VirtIOConsole *s = to_virtio_console(vdev); + + qemu_chr_write(s->chr, buf, strlen((char*)buf)); +} + static void virtio_console_save(QEMUFile *f, void *opaque) { VirtIOConsole *s = opaque; diff --git a/hw/virtio-console.h b/hw/virtio-console.h index 84d0717..f3ccc3c 100644 --- a/hw/virtio-console.h +++ b/hw/virtio-console.h @@ -16,4 +16,6 @@ /* The ID for virtio console */ #define VIRTIO_ID_CONSOLE 3 +void virtio_console_print_early(VirtIODevice *vdev, uint8_t *buf); + #endif