From ca425eb52dba8d849180eca5e03416fc8a5268bb Mon Sep 17 00:00:00 2001
From: Marcelo Tosatti <mtosatti@redhat.com>
Date: Fri, 29 Jan 2010 17:28:41 -0200
Subject: [PATCH] --- yaml --- r: 180433 b: refs/heads/master c:
 ee73f656a604d5aa9df86a97102e4e462dd79924 h: refs/heads/master i:   180431:
 0d72742270b241bf0b1549e5ba4409ad22f13f69 v: v3

---
 [refs]                     | 2 +-
 trunk/arch/x86/kvm/i8254.c | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 8c5e7a70b39c..c6db6aec6ce8 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 923de3cf5bf12049628019010e36623fca5ef6d1
+refs/heads/master: ee73f656a604d5aa9df86a97102e4e462dd79924
diff --git a/trunk/arch/x86/kvm/i8254.c b/trunk/arch/x86/kvm/i8254.c
index 296aba49472a..15578f180e59 100644
--- a/trunk/arch/x86/kvm/i8254.c
+++ b/trunk/arch/x86/kvm/i8254.c
@@ -467,6 +467,9 @@ static int pit_ioport_read(struct kvm_io_device *this,
 		return -EOPNOTSUPP;
 
 	addr &= KVM_PIT_CHANNEL_MASK;
+	if (addr == 3)
+		return 0;
+
 	s = &pit_state->channels[addr];
 
 	mutex_lock(&pit_state->lock);