diff mbox

[8/9] usb-hid: activate usb tablet / mouse after migration.

Message ID 1318504111-15309-9-git-send-email-kraxel@redhat.com
State New
Headers show

Commit Message

Gerd Hoffmann Oct. 13, 2011, 11:08 a.m. UTC 
qemu uses the ps/2 mouse by default.  The usb tablet (or mouse) is
activated as soon as qemu sees some guest activity on the device,
i.e. polling for HID events.  That used to work fine for both fresh
boot and migration.

Remote wakeup support changed the picture though: There will be no
polling after migration in case the guest suspended the usb bus,
waiting for wakeup events.  Result is that the ps/2 mouse stays
active.

Fix this by activating the usb tablet / mouse in post_load() in case
the guest enabled remote wakeup.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 hw/usb-hid.c |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)
diff mbox

Patch

diff --git a/hw/usb-hid.c b/hw/usb-hid.c
index ba79466..a110c74 100644
--- a/hw/usb-hid.c
+++ b/hw/usb-hid.c
@@ -527,10 +527,21 @@  static int usb_keyboard_initfn(USBDevice *dev)
     return usb_hid_initfn(dev, HID_KEYBOARD);
 }
 
+static int usb_ptr_post_load(void *opaque, int version_id)
+{
+    USBHIDState *s = opaque;
+
+    if (s->dev.remote_wakeup) {
+        hid_pointer_activate(&s->hid);
+    }
+    return 0;
+}
+
 static const VMStateDescription vmstate_usb_ptr = {
     .name = "usb-ptr",
     .version_id = 1,
     .minimum_version_id = 1,
+    .post_load = usb_ptr_post_load,
     .fields = (VMStateField []) {
         VMSTATE_USB_DEVICE(dev, USBHIDState),
         VMSTATE_HID_POINTER_DEVICE(hid, USBHIDState),