72 lines
2.2 KiB
Diff
72 lines
2.2 KiB
Diff
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From 8e30e81c4268103d502587de565842b9632a7965 Mon Sep 17 00:00:00 2001
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From: Jinhao Gao <gaojinhao@huawei.com>
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Date: Tue, 15 Feb 2022 17:02:08 +0800
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Subject: [PATCH] pl031: support rtc-timer property for pl031
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This patch adds the rtc-timer property for pl031, we can get the
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rtc time (UTC) through qmp command "qom-get date" with this property.
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Signed-off-by: Haibin Wang <wanghaibin.wang@huawei.com>
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Reviewed-by: Shannon Zhao <shanon.Zhaosl@gmail.com>
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Reviewed-by: Ying Fang <fangying1@huawei.com>
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Signed-off-by: Keqian Zhu <zhukeqian1@huawei.com>
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Signed-off-by: Jinhao Gao <gaojinhao@huawei.com>
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Signed-off-by: Yuan Zhang <zhangyuan162@huawei.com>
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---
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hw/rtc/pl031.c | 25 +++++++++++++++++++++++++
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1 file changed, 25 insertions(+)
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diff --git a/hw/rtc/pl031.c b/hw/rtc/pl031.c
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index f2e6baebba..57e9a35616 100644
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--- a/hw/rtc/pl031.c
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+++ b/hw/rtc/pl031.c
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@@ -63,6 +63,15 @@ static uint32_t pl031_get_count(PL031State *s)
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return s->tick_offset + now / NANOSECONDS_PER_SECOND;
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}
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+static void pl031_get_date(Object *obj, struct tm *current_tm, Error **errp)
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+{
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+ PL031State *s = PL031(obj);
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+ time_t ti = pl031_get_count(s);
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+
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+ /* Changed to UTC time */
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+ gmtime_r(&ti, current_tm);
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+}
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+
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static void pl031_set_alarm(PL031State *s)
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{
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uint32_t ticks;
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@@ -202,6 +211,20 @@ static void pl031_init(Object *obj)
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qemu_clock_get_ns(rtc_clock) / NANOSECONDS_PER_SECOND;
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s->timer = timer_new_ns(rtc_clock, pl031_interrupt, s);
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+ object_property_add_tm(OBJECT(s), "date", pl031_get_date);
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+}
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+
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+static void pl031_realize(DeviceState *d, Error **errp)
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+{
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+ object_property_add_alias(qdev_get_machine(), "rtc-time",
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+ OBJECT(d), "date");
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+}
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+
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+static void pl031_unrealize(DeviceState *d)
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+{
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+ if (object_property_find(qdev_get_machine(), "rtc-time")) {
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+ object_property_del(qdev_get_machine(), "rtc-time");
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+ }
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}
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static void pl031_finalize(Object *obj)
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@@ -338,6 +361,8 @@ static void pl031_class_init(ObjectClass *klass, void *data)
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DeviceClass *dc = DEVICE_CLASS(klass);
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dc->vmsd = &vmstate_pl031;
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+ dc->realize = pl031_realize;
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+ dc->unrealize = pl031_unrealize;
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device_class_set_props(dc, pl031_properties);
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}
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--
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2.27.0
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