Re: [Qemu-devel] [PATCH 1/5] qemu-timer: fix off-by-one

["Alex Bennée" <alex.bennee@linaro.org>]

Paolo Bonzini <pbonzini@redhat.com> writes:

> If the first timer is exactly at the current value of the clock, the
> deadline is met and the timer should fire.  This fixes itself without icount,
> but with icount execution of instructions will stop exactly at the deadline.
>
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>

> ---
>  util/qemu-timer.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/util/qemu-timer.c b/util/qemu-timer.c
> index 6cf70b9..2f20151 100644
> --- a/util/qemu-timer.c
> +++ b/util/qemu-timer.c
> @@ -199,7 +199,7 @@ bool timerlist_expired(QEMUTimerList *timer_list)
>      expire_time = timer_list->active_timers->expire_time;
>      qemu_mutex_unlock(&timer_list->active_timers_lock);
>
> -    return expire_time < qemu_clock_get_ns(timer_list->clock->type);
> +    return expire_time <= qemu_clock_get_ns(timer_list->clock->type);
>  }
>
>  bool qemu_clock_expired(QEMUClockType type)


--
Alex Bennée