diff options
| -rw-r--r-- | xen/common/schedule.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/xen/common/schedule.c b/xen/common/schedule.c index 95472bad0d..af3abc2f16 100644 --- a/xen/common/schedule.c +++ b/xen/common/schedule.c @@ -276,6 +276,8 @@ int sched_move_domain(struct domain *d, struct cpupool *c) new_p = cpumask_first(c->cpu_valid); for_each_vcpu ( d, v ) { + spinlock_t *lock; + vcpudata = v->sched_priv; migrate_timer(&v->periodic_timer, new_p); @@ -283,7 +285,16 @@ int sched_move_domain(struct domain *d, struct cpupool *c) migrate_timer(&v->poll_timer, new_p); cpumask_setall(v->cpu_affinity); + + lock = vcpu_schedule_lock_irq(v); v->processor = new_p; + /* + * With v->processor modified we must not + * - make any further changes assuming we hold the scheduler lock, + * - use vcpu_schedule_unlock_irq(). + */ + spin_unlock_irq(lock); + v->sched_priv = vcpu_priv[v->vcpu_id]; evtchn_move_pirqs(v); |