[PULL 3/8] ui/console: allow display device to be labeled with given id

[Gerd Hoffmann]

From: "Wen, Jianxian" <Jianxian.Wen@verisilicon.com>

The update makes it easier to find and specify devices.
They can only be found by device type name without the id field,
for example, devices of the same type have the same label.
The update also adds a head field,
which is useful for devices that support multiple heads,
such as virtio-gpu.

Signed-off-by: Jianxian Wen <jianxian.wen@verisilicon.com>
Signed-off-by: Lu Gao <lu.gao@verisilicon.com>
Message-Id: 
<4C23C17B8E87E74E906A25A3254A03F4018FC045B0@SHASXM06.verisilicon.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 include/ui/console.h |  1 +
 ui/console.c         | 41 ++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 41 insertions(+), 1 deletion(-)

diff --git a/include/ui/console.h b/include/ui/console.h
index b64d82436097..c0520c694c23 100644
--- a/include/ui/console.h
+++ b/include/ui/console.h
@@ -463,6 +463,7 @@ bool qemu_console_is_visible(QemuConsole *con);
 bool qemu_console_is_graphic(QemuConsole *con);
 bool qemu_console_is_fixedsize(QemuConsole *con);
 bool qemu_console_is_gl_blocked(QemuConsole *con);
+bool qemu_console_is_multihead(DeviceState *dev);
 char *qemu_console_get_label(QemuConsole *con);
 int qemu_console_get_index(QemuConsole *con);
 uint32_t qemu_console_get_head(QemuConsole *con);
diff --git a/ui/console.c b/ui/console.c
index 9331b85203a0..e139f7115e1f 100644
--- a/ui/console.c
+++ b/ui/console.c
@@ -2313,11 +2313,50 @@ bool qemu_console_is_gl_blocked(QemuConsole *con)
     return con->gl_block;
 }
 
+bool qemu_console_is_multihead(DeviceState *dev)
+{
+    QemuConsole *con;
+    Object *obj;
+    uint32_t f = 0xffffffff;
+    uint32_t h;
+
+    QTAILQ_FOREACH(con, &consoles, next) {
+        obj = object_property_get_link(OBJECT(con),
+                                       "device", &error_abort);
+        if (DEVICE(obj) != dev) {
+            continue;
+        }
+
+        h = object_property_get_uint(OBJECT(con),
+                                     "head", &error_abort);
+        if (f == 0xffffffff) {
+            f = h;
+        } else if (h != f) {
+            return true;
+        }
+    }
+    return false;
+}
+
 char *qemu_console_get_label(QemuConsole *con)
 {
     if (con->console_type == GRAPHIC_CONSOLE) {
         if (con->device) {
-            return g_strdup(object_get_typename(con->device));
+            DeviceState *dev;
+            bool multihead;
+
+            dev = DEVICE(con->device);
+            multihead = qemu_console_is_multihead(dev);
+            if (multihead) {
+                return g_strdup_printf("%s.%d", dev->id ?
+                                       dev->id :
+                                       object_get_typename(con->device),
+                                       con->head);
+            } else {
+                return g_strdup_printf("%s", dev->id ?
+                                       dev->id :
+                                       object_get_typename(con->device));
+            }
         }
         return g_strdup("VGA");
     } else {
-- 
2.36.1