hw/block-common: Factor out fall back to legacy -drive serial=...

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

1 files changed, 24 insertions, 0 deletions

diff --git a/hw/block-common.c b/hw/block-common.c
new file mode 100644
index 0000000000..036334b1ec
--- /dev/null
+++ b/hw/block-common.c
@@ -0,0 +1,24 @@
+/*
+ * Common code for block device models
+ *
+ * Copyright (C) 2012 Red Hat, Inc.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or
+ * later.  See the COPYING file in the top-level directory.
+ */
+
+#include "blockdev.h"
+#include "hw/block-common.h"
+
+void blkconf_serial(BlockConf *conf, char **serial)
+{
+    DriveInfo *dinfo;
+
+    if (!*serial) {
+        /* try to fall back to value set with legacy -drive serial=... */
+        dinfo = drive_get_by_blockdev(conf->bs);
+        if (*dinfo->serial) {
+            *serial = g_strdup(dinfo->serial);
+        }
+    }
+}