[Xen-devel] [PATCH v3 4/6] suspend: make ps/2 devices wakeup the guest

[Gerd Hoffmann <kraxel@xxxxxxxxxx>]

This patch adds wakeup support to ps/2 emulation.  Any key press on the
ps/2 keyboard will wakeup the guest.  Likewise any mouse button press
will wakeup the guest.  Mouse moves are ignored, so the guest will not
wakeup in case your mouse crosses the vnc window of a suspended guest by
accident.

Signed-off-by: Gerd Hoffmann <kraxel@xxxxxxxxxx>
---
 hw/ps2.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/hw/ps2.c b/hw/ps2.c
index 1d9057b..d1b2505 100644
--- a/hw/ps2.c
+++ b/hw/ps2.c
@@ -24,6 +24,7 @@
 #include "hw.h"
 #include "ps2.h"
 #include "console.h"
+#include "sysemu.h"
 
 /* debug PC keyboard */
 //#define DEBUG_KBD
@@ -154,6 +155,7 @@ static void ps2_put_keycode(void *opaque, int keycode)
 {
     PS2KbdState *s = opaque;
 
+    qemu_system_wakeup_request();
     /* XXX: add support for scancode set 1 */
     if (!s->translate && keycode < 0xe0 && s->scancode_set > 1) {
         if (keycode & 0x80) {
@@ -368,6 +370,10 @@ static void ps2_mouse_event(void *opaque,
        return;
     s->mouse_buttons = buttons_state;
 
+    if (buttons_state) {
+        qemu_system_wakeup_request();
+    }
+
     if (!(s->mouse_status & MOUSE_STATUS_REMOTE) &&
         (s->common.queue.count < (PS2_QUEUE_SIZE - 16))) {
         for(;;) {
-- 
1.7.1


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