qemu_notify_event in the non-iothread case is only stopping the current
CPU. However, if the CPU is idle and the main loop is in the select
call then a call to qemu_event_increment is needed too (as done in
host_alarm_handler). Since in general one doesn't know whether the CPU
is executing or not, it is a safe bet to always do qemu_event_increment.
Another way to see it: after this patch qemu_event_increment is the
"common part" of qemu_notify_event for both the CONFIG_IOTHREAD and
!CONFIG_IOTHREAD cases, which makes sense.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
qemu_get_clock(rt_clock)) ||
qemu_timer_expired(active_timers[QEMU_CLOCK_HOST],
qemu_get_clock(host_clock))) {
- qemu_event_increment();
+
t->expired = alarm_has_dynticks(t);
#ifndef CONFIG_IOTHREAD
{
CPUState *env = cpu_single_env;
+ qemu_event_increment ();
if (env) {
cpu_exit(env);
}