usb: fix serial number for hid devices

commit 7b074a22dab4bdda9864b933f1bc811a3db42845 changed the serial
number of hid devices.  Add compat properties to keep the old serial
number for qemu 0.12 and older.

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

diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index 97362f2..7972443 100644 (file)
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -622,6 +622,18 @@ static QEMUMachine pc_machine_v0_13 = {
             .driver   = "virtio-serial-pci",\
             .property = "vectors",\
             .value    = stringify(0),\
+        },{\
+            .driver   = "usb-mouse",\
+            .property = "serial",\
+            .value    = "1",\
+        },{\
+            .driver   = "usb-tablet",\
+            .property = "serial",\
+            .value    = "1",\
+        },{\
+            .driver   = "usb-kbd",\
+            .property = "serial",\
+            .value    = "1",\
         }
 
 static QEMUMachine pc_machine_v0_12 = {