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