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mc146818rtc: add "rtc-time" link to "/machine/rtc"

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Add a link to rtc under /machine providing a stable
location for management apps to query the value of the
time.  The link should be added by any object that sends
RTC_TIME_CHANGE events.

{"execute":"qom-get","arguments":{"path":"/machine","property":"rtc-time"} }

Suggested by Paolo Bonzini and Andreas Faerber.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Marcelo Tosatti 2014-06-04 14:52:03 -03:00 • committed by Paolo Bonzini
parent d190698e6f
commit 654a36d857
1 changed files with 9 additions and 0 deletions
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9
hw/timer/mc146818rtc.c
View file

@ -909,6 +909,9 @@ static void rtc_realizefn(DeviceState *dev, Error **errp)
object_property_add(OBJECT(s), "date", "struct tm", object_property_add(OBJECT(s), "date", "struct tm",
rtc_get_date, NULL, NULL, s, NULL); rtc_get_date, NULL, NULL, s, NULL);
object_property_add_alias(qdev_get_machine(), "rtc-time",
OBJECT(s), "date", NULL);
} }
ISADevice *rtc_init(ISABus *bus, int base_year, qemu_irq intercept_irq) ISADevice *rtc_init(ISABus *bus, int base_year, qemu_irq intercept_irq)
@ -950,11 +953,17 @@ static void rtc_class_initfn(ObjectClass *klass, void *data)
dc->cannot_instantiate_with_device_add_yet = true; dc->cannot_instantiate_with_device_add_yet = true;
} }
static void rtc_finalize(Object *obj)
{
object_property_del(qdev_get_machine(), "rtc", NULL);
}
static const TypeInfo mc146818rtc_info = { static const TypeInfo mc146818rtc_info = {
.name = TYPE_MC146818_RTC, .name = TYPE_MC146818_RTC,
.parent = TYPE_ISA_DEVICE, .parent = TYPE_ISA_DEVICE,
.instance_size = sizeof(RTCState), .instance_size = sizeof(RTCState),
.class_init = rtc_class_initfn, .class_init = rtc_class_initfn,
.instance_finalize = rtc_finalize,
}; };
static void mc146818rtc_register_types(void) static void mc146818rtc_register_types(void)