[Qemu-devel] [PATCH v2 11/13] qemu-char: add -chardev mux support

[Gerd Hoffmann <kraxel@redhat.com>]

Allow to explicitly create mux chardevs on the command line,
like you can using QMP.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 qemu-char.c |   18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/qemu-char.c b/qemu-char.c
index e6c3157..7d072a8 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -3122,6 +3122,19 @@ static void qemu_chr_parse_memory(QemuOpts *opts, ChardevBackend *backend,
     }
 }
 
+static void qemu_chr_parse_mux(QemuOpts *opts, ChardevBackend *backend,
+                               Error **errp)
+{
+    const char *chardev = qemu_opt_get(opts, "chardev");
+
+    if (chardev == NULL) {
+        error_setg(errp, "chardev: mux: no chardev given");
+        return;
+    }
+    backend->mux = g_new0(ChardevMux, 1);
+    backend->mux->chardev = g_strdup(chardev);
+}
+
 typedef struct CharDriver {
     const char *name;
     /* old, pre qapi */
@@ -3488,6 +3501,9 @@ QemuOptsList qemu_chardev_opts = {
         },{
             .name = "size",
             .type = QEMU_OPT_SIZE,
+        },{
+            .name = "chardev",
+            .type = QEMU_OPT_STRING,
         },
         { /* end of list */ }
     },
@@ -3778,6 +3794,8 @@ static void register_types(void)
     register_char_driver_qapi("console", CHARDEV_BACKEND_KIND_CONSOLE, NULL);
     register_char_driver_qapi("pipe", CHARDEV_BACKEND_KIND_PIPE,
                               qemu_chr_parse_pipe);
+    register_char_driver_qapi("mux", CHARDEV_BACKEND_KIND_MUX,
+                              qemu_chr_parse_mux);
 }
 
 type_init(register_types);
-- 
1.7.9.7