chardev: add support for qapi-based chardev initialization

This patch add support for a new way to initialize chardev devices.
Instead of calling a initialization function with a QemuOpts we will
now create a (qapi) ChardevBackend, optionally call a function to
fill ChardevBackend from QemuOpts, then go create the chardev using
the new qapi code path which is also used by chardev-add.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/char/char.h b/include/char/char.h
index 2e24270895..afe002498e 100644
--- a/include/char/char.h
+++ b/include/char/char.h
@@ -245,6 +245,8 @@ CharDriverState *qemu_chr_find(const char *name);
 QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename);
 
 void register_char_driver(const char *name, CharDriverState *(*open)(QemuOpts *));
+void register_char_driver_qapi(const char *name, int kind,
+        void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp));
 
 /* add an eventfd to the qemu devices that are polled */
 CharDriverState *qemu_chr_open_eventfd(int eventfd);