x86 hvm: Xen interface and implementation for virtual S3

Signed-off-by: Tian Kevin <kevin.tian@intel.com>
Signed-off-by: Yu Ke <ke.yu@intel.com>
Signed-off-by: Ke Liping <liping.ke@intel.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/xen/arch/x86/hvm/pmtimer.c b/xen/arch/x86/hvm/pmtimer.c
index 4924a80687..ee5b58f37d 100644
--- a/xen/arch/x86/hvm/pmtimer.c
+++ b/xen/arch/x86/hvm/pmtimer.c
@@ -276,3 +276,9 @@ void pmtimer_deinit(struct domain *d)
     PMTState *s = &d->arch.hvm_domain.pl_time.vpmt;
     kill_timer(&s->timer);
 }
+
+void pmtimer_reset(struct domain *d)
+{
+    /* Reset the counter. */
+    d->arch.hvm_domain.pl_time.vpmt.pm.tmr_val = 0;
+}