diff options
| -rw-r--r-- | xen/arch/x86/time.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/xen/arch/x86/time.c b/xen/arch/x86/time.c index b403f4711e..6e94847a49 100644 --- a/xen/arch/x86/time.c +++ b/xen/arch/x86/time.c @@ -854,7 +854,16 @@ static void __update_vcpu_system_time(struct vcpu *v, int force) if ( is_hvm_domain(d) ) { struct pl_time *pl = &v->domain->arch.hvm_domain.pl_time; + stime += pl->stime_offset + v->arch.hvm_vcpu.stime_offset; + if ( (s64)stime < 0 ) + { + printk(XENLOG_G_WARNING "d%dv%d: bogus time %" PRId64 + " (offsets %" PRId64 "/%" PRId64 ")\n", + d->domain_id, v->vcpu_id, stime, + pl->stime_offset, v->arch.hvm_vcpu.stime_offset); + stime = 0; + } } tsc_stamp = gtime_to_gtsc(d, stime); } |