__visible void smp_trace_reschedule_interrupt(struct pt_regs *regs)
{
/*
* Need to call irq_enter() before calling the trace point.
* __smp_reschedule_interrupt() calls irq_enter/exit() too (in
* scheduler_ipi(). This is OK, since those functions are allowed
* to nest.
*/
ipi_entering_ack_irq();
trace_reschedule_entry(RESCHEDULE_VECTOR);
__smp_reschedule_interrupt();
trace_reschedule_exit(RESCHEDULE_VECTOR);
exiting_irq();
/*
* KVM uses this interrupt to force a cpu out of guest mode
*/
}
/*
* Reschedule call back. KVM uses this interrupt to force a cpu out of
* guest mode
*/
__visible void __irq_entry smp_reschedule_interrupt(struct pt_regs *regs)
{
ack_APIC_irq();
inc_irq_stat(irq_resched_count);
kvm_set_cpu_l1tf_flush_l1d();
if (trace_resched_ipi_enabled()) {
/*
* scheduler_ipi() might call irq_enter() as well, but
* nested calls are fine.
*/
irq_enter();
trace_reschedule_entry(RESCHEDULE_VECTOR);
scheduler_ipi();
trace_reschedule_exit(RESCHEDULE_VECTOR);
irq_exit();
return;
}
scheduler_ipi();
}
