KVM: s390: Don't exit SIE on SIGP sense running

[linux-2.6-block.git] / arch / x86 / kvm / timer.c

diff --git a/arch/x86/kvm/timer.c b/arch/x86/kvm/timer.c
index eea40439066c2eb828ded2a0d87409140b658c2f..564548fbb3d6f38d291ebb447436563ffa72e239 100644 (file)
--- a/arch/x86/kvm/timer.c
+++ b/arch/x86/kvm/timer.c
@@ -1,3 +1,17 @@
+/*
+ * Kernel-based Virtual Machine driver for Linux
+ *
+ * This module enables machines with Intel VT-x extensions to run virtual
+ * machines without emulation or binary translation.
+ *
+ * timer support
+ *
+ * Copyright 2010 Red Hat, Inc. and/or its affilates.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.  See
+ * the COPYING file in the top-level directory.
+ */
+
 #include <linux/kvm_host.h>
 #include <linux/kvm.h>
 #include <linux/hrtimer.h>
@@ -12,7 +26,8 @@ static int __kvm_timer_fn(struct kvm_vcpu *vcpu, struct kvm_timer *ktimer)
        /*
         * There is a race window between reading and incrementing, but we do
         * not care about potentially loosing timer events in the !reinject
-        * case anyway.
+        * case anyway. Note: KVM_REQ_PENDING_TIMER is implicitly checked
+        * in vcpu_enter_guest.
         */
        if (ktimer->reinject || !atomic_read(&ktimer->pending)) {
                atomic_inc(&ktimer->pending);