inline void unmask_evtchn(uint32_t port)
{
shared_info_t *s = HYPERVISOR_shared_info;
vcpu_info_t *vcpu_info = &s->vcpu_info[smp_processor_id()];
synch_clear_bit(port, &s->evtchn_mask[0]);
}
void unmask_evtchn(int port)
{
shared_info_t *s = HYPERVISOR_shared_info;
unsigned int cpu = smp_processor_id();
vcpu_info_t *vcpu_info = &s->vcpu_info[cpu];
BUG_ON(!irqs_disabled());
/* Slow path (hypercall) if this is a non-local port. */
if (unlikely(cpu != cpu_from_evtchn(port))) {
struct evtchn_unmask unmask = { .port = port };
(void)HYPERVISOR_event_channel_op(EVTCHNOP_unmask, &unmask);
return;
}
synch_clear_bit(port, &s->evtchn_mask[0]);
/*
* The following is basically the equivalent of 'hw_resend_irq'. Just
* like a real IO-APIC we 'lose the interrupt edge' if the channel is
* masked.
*/
if (synch_test_bit(port, &s->evtchn_pending[0]) &&
!synch_test_and_set_bit(port / BITS_PER_LONG,
&vcpu_info->evtchn_pending_sel)) {
vcpu_info->evtchn_upcall_pending = 1;
if (!vcpu_info->evtchn_upcall_mask)
force_evtchn_callback();
}
}
inline void unmask_evtchn(uint32_t port) {
shared_info_t *s = g_sharedInfoArea;
vcpu_info_t *vcpu_info = &s->vcpu_info[smp_processor_id()];
synch_clear_bit(port, &s->evtchn_mask[0]);
/*
* The following is basically the equivalent of 'hw_resend_irq'. Just like
* a real IO-APIC we 'lose the interrupt edge' if the channel is masked.
*/
if (synch_test_bit (port, &s->evtchn_pending[0])
&& !synch_test_and_set_bit(port / (sizeof(unsigned long) * 8),
&vcpu_info->evtchn_pending_sel)) {
vcpu_info->evtchn_upcall_pending = 1;
if (!vcpu_info->evtchn_upcall_mask)
force_evtchn_callback();
}
}
inline void clear_evtchn(uint32_t port)
{
shared_info_t *s = HYPERVISOR_shared_info;
synch_clear_bit(port, &s->evtchn_pending[0]);
}
inline void clear_evtchn(uint32_t port) {
shared_info_t *s = g_sharedInfoArea;
synch_clear_bit(port, &s->evtchn_pending[0]);
}
