From a92f19e2c38ae57d363ef92cbbd3f9b3c30b87e5 Mon Sep 17 00:00:00 2001
From: Keir Fraser <keir.fraser@citrix.com>
Date: Thu, 28 Mar 2013 10:03:36 -0400
Subject: [PATCH] xen/events: Handle VIRQ_TIMER before any other hardirq in
 event loop.

This avoids any other hardirq handler seeing a very stale jiffies
value immediately after wakeup from a long idle period. The one
observable symptom of this was a USB keyboard, with software keyboard
repeat, which would always repeat a key immediately that it was
pressed. This is due to the key press waking the guest, the key
handler immediately runs, sees an old jiffies value, and then that
jiffies value significantly updated, before the key is unpressed.

Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
(cherry picked from commit bee980d9e9642e96351fa3ca9077b853ecf62f57)
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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