From c963fee4b0a98e48c12ed5b063fc4aba6d018ffb Mon Sep 17 00:00:00 2001 From: Pavel Dovgalyuk Date: Wed, 10 Mar 2021 13:21:40 +0300 Subject: hw/i8254: fix vmstate load QEMU timer of channel 0 in i8254 is used to raise irq at the specified moment of time. This irq can be disabled with irq_disabled flag. But when vmstate of the pit is loaded, timer may be rearmed despite the disabled interrupts. This patch adds irq_disabled flag check to fix that. Signed-off-by: Pavel Dovgalyuk Message-Id: <161537170060.6654.9430112746749476215.stgit@pasha-ThinkPad-X280> Signed-off-by: Paolo Bonzini --- hw/timer/i8254.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'hw/timer/i8254.c') diff --git a/hw/timer/i8254.c b/hw/timer/i8254.c index c01ee2c72a..c8388ea432 100644 --- a/hw/timer/i8254.c +++ b/hw/timer/i8254.c @@ -324,7 +324,7 @@ static void pit_post_load(PITCommonState *s) { PITChannelState *sc = &s->channels[0]; - if (sc->next_transition_time != -1) { + if (sc->next_transition_time != -1 && !sc->irq_disabled) { timer_mod(sc->irq_timer, sc->next_transition_time); } else { timer_del(sc->irq_timer); -- cgit v1.2.3