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mc146818rtc: Remove reset notifiers

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The reset notifiers are unreliable and recalculating the offsets
after boot causes problems with migration in cases where explicit
base times are set on the destination.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20190724115823.4199-2-dgilbert@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Dr. David Alan Gilbert 2019-07-24 12:58:20 +01:00 committed by Paolo Bonzini
parent 9458a9a1df
commit 8ff72af557
1 changed files with 0 additions and 19 deletions
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19
hw/timer/mc146818rtc.c
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@ -96,7 +96,6 @@ typedef struct RTCState {
uint32_t irq_coalesced;
uint32_t period;
QEMUTimer *coalesced_timer;
Notifier clock_reset_notifier;
LostTickPolicy lost_tick_policy;
Notifier suspend_notifier;
QLIST_ENTRY(RTCState) link;
@ -889,20 +888,6 @@ static const VMStateDescription vmstate_rtc = {
}
};
static void rtc_notify_clock_reset(Notifier *notifier, void *data)
{
RTCState *s = container_of(notifier, RTCState, clock_reset_notifier);
int64_t now = *(int64_t *)data;
rtc_set_date_from_host(ISA_DEVICE(s));
periodic_timer_update(s, now, 0);
check_update_timer(s);
if (s->lost_tick_policy == LOST_TICK_POLICY_SLEW) {
rtc_coalesced_timer_update(s);
}
}
/* set CMOS shutdown status register (index 0xF) as S3_resume(0xFE)
BIOS will read it and start S3 resume at POST Entry */
static void rtc_notify_suspend(Notifier *notifier, void *data)
@ -988,10 +973,6 @@ static void rtc_realizefn(DeviceState *dev, Error **errp)
s->update_timer = timer_new_ns(rtc_clock, rtc_update_timer, s);
check_update_timer(s);
s->clock_reset_notifier.notify = rtc_notify_clock_reset;
qemu_clock_register_reset_notifier(rtc_clock,
&s->clock_reset_notifier);
s->suspend_notifier.notify = rtc_notify_suspend;
qemu_register_suspend_notifier(&s->suspend_notifier);