[Qemu-devel] [PATCH 2 of 4] kvm-userpace: add virtio-console cmdline option

[Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>]

# HG changeset patch
# User Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
# Date 1231855940 -3600
# Node ID fe40d92b5aea81b22c493e23ca5dc53a1b514c9a
# Parent  50f40bc14f793a5f4ce6d91c36a3f3b19b507d42
kvm-userpace: add virtio-console cmdline option

This patch adds the typical qemu console command line switch to the virtio
console. using -virtioconsole ARG it can now be specified what output a guest
hvc should be redirected to.

Signed-off-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
---
 vl.c |   12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/vl.c b/vl.c
--- a/vl.c
+++ b/vl.c
@@ -4062,6 +4062,7 @@ enum {
     QEMU_OPTION_echr,
     QEMU_OPTION_monitor,
     QEMU_OPTION_serial,
+    QEMU_OPTION_virtiocon,
     QEMU_OPTION_parallel,
     QEMU_OPTION_loadvm,
     QEMU_OPTION_full_screen,
@@ -4171,6 +4172,7 @@ static const QEMUOption qemu_options[] =
     { "echr", HAS_ARG, QEMU_OPTION_echr },
     { "monitor", HAS_ARG, QEMU_OPTION_monitor },
     { "serial", HAS_ARG, QEMU_OPTION_serial },
+    { "virtioconsole", HAS_ARG, QEMU_OPTION_virtiocon },
     { "parallel", HAS_ARG, QEMU_OPTION_parallel },
     { "loadvm", HAS_ARG, QEMU_OPTION_loadvm },
     { "full-screen", 0, QEMU_OPTION_full_screen },
@@ -4968,6 +4970,14 @@ int main(int argc, char **argv, char **e
                 }
                 serial_devices[serial_device_index] = optarg;
                 serial_device_index++;
+                break;
+            case QEMU_OPTION_virtiocon:
+                if (virtio_console_index >= MAX_VIRTIO_CONSOLES) {
+                    fprintf(stderr, "qemu: too many virtio consoles\n");
+                    exit(1);
+                }
+                virtio_consoles[virtio_console_index] = optarg;
+                virtio_console_index++;
                 break;
             case QEMU_OPTION_parallel:
                 if (parallel_device_index >= MAX_PARALLEL_PORTS) {