Signed-off-by: Roger Pau Monné <roger....@citrix.com>
Cc: Jan Beulich <jbeul...@suse.com>
Cc: Andrew Cooper <andrew.coop...@citrix.com>
---
xen/arch/x86/hvm/rtc.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/xen/arch/x86/hvm/rtc.c b/xen/arch/x86/hvm/rtc.c
index fde120b..d6d24c8 100644
--- a/xen/arch/x86/hvm/rtc.c
+++ b/xen/arch/x86/hvm/rtc.c
@@ -726,6 +726,9 @@ void rtc_migrate_timers(struct vcpu *v)
{
RTCState *s = vcpu_vrtc(v);
+ if ( !has_vrtc(v->domain) )
+ return;
+
if ( v->vcpu_id == 0 )
{
migrate_timer(&s->update_timer, v->processor);;
@@ -739,6 +742,10 @@ static int rtc_save(struct domain *d, hvm_domain_context_t
*h)
{
RTCState *s = domain_vrtc(d);
int rc;
+
+ if ( !has_vrtc(d) )
+ return 0;
+
spin_lock(&s->lock);
rc = hvm_save_entry(RTC, 0, h, &s->hw);
spin_unlock(&s->lock);
@@ -750,6 +757,9 @@ static int rtc_load(struct domain *d, hvm_domain_context_t
*h)
{
RTCState *s = domain_vrtc(d);
+ if ( !has_vrtc(d) )
+ return 0;
+
spin_lock(&s->lock);
/* Restore the registers */
@@ -790,6 +800,9 @@ void rtc_init(struct domain *d)
{
RTCState *s = domain_vrtc(d);
+ if ( !has_vrtc(d) )
+ return;
+
spin_lock_init(&s->lock);
init_timer(&s->update_timer, rtc_update_timer, s, smp_processor_id());
@@ -820,6 +833,9 @@ void rtc_deinit(struct domain *d)
{
RTCState *s = domain_vrtc(d);
+ if ( !has_vrtc(d) )
+ return;
+
spin_barrier(&s->lock);
TRACE_0D(TRC_HVM_EMUL_RTC_STOP_TIMER);
--
1.9.5 (Apple Git-50.3)
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