machine: export register_compat_prop()

We have HW_COMPAT_*, however that's only bound to machines, not other
things (like accelerators).  Behind it, it was register_compat_prop()
that played the trick.  Let's export the function for further use
outside HW_COMPAT_* magic.

Meanwhile, move it to qdev-properties.c where seems more proper (since
it'll be used not only in machine codes).

Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <1498536619-14548-2-git-send-email-peterx@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/hw/core/qdev-properties.c b/hw/core/qdev-properties.c
index 68cd65345c..adf62ad671 100644
--- a/hw/core/qdev-properties.c
+++ b/hw/core/qdev-properties.c
@@ -1084,6 +1084,20 @@ void qdev_prop_register_global(GlobalProperty *prop)
     global_props = g_list_append(global_props, prop);
 }
 
+void register_compat_prop(const char *driver,
+                          const char *property,
+                          const char *value)
+{
+    GlobalProperty *p = g_new0(GlobalProperty, 1);
+
+    /* Any compat_props must never cause error */
+    p->errp = &error_abort;
+    p->driver = driver;
+    p->property = property;
+    p->value = value;
+    qdev_prop_register_global(p);
+}
+
 void qdev_prop_register_global_list(GlobalProperty *props)
 {
     int i;