From: guangrong.xiao@gmail.com
To: pbonzini@redhat.com, mst@redhat.com, mtosatti@redhat.com
Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org,
yunfangtai@tencent.com,
Xiao Guangrong <xiaoguangrong@tencent.com>
Subject: [Qemu-devel] [PATCH v2 4/5] mc146818rtc: drop unnecessary '#ifdef TARGET_I386'
Date: Thu, 4 May 2017 19:59:47 +0800 [thread overview]
Message-ID: <20170504115948.3048-5-xiaoguangrong@tencent.com> (raw)
In-Reply-To: <20170504115948.3048-1-xiaoguangrong@tencent.com>
From: Xiao Guangrong <xiaoguangrong@tencent.com>
If the code purely depends on LOST_TICK_POLICY_SLEW, we can simply
drop '#ifdef TARGET_I386' as only x86 can enable this tick policy
Signed-off-by: Xiao Guangrong <xiaoguangrong@tencent.com>
---
hw/timer/mc146818rtc.c | 14 +++-----------
1 file changed, 3 insertions(+), 11 deletions(-)
diff --git a/hw/timer/mc146818rtc.c b/hw/timer/mc146818rtc.c
index 7f2e975..8fc9313 100644
--- a/hw/timer/mc146818rtc.c
+++ b/hw/timer/mc146818rtc.c
@@ -112,7 +112,6 @@ static uint64_t get_guest_rtc_ns(RTCState *s)
guest_clock - s->last_update + s->offset;
}
-#ifdef TARGET_I386
static void rtc_coalesced_timer_update(RTCState *s)
{
if (s->irq_coalesced == 0) {
@@ -126,6 +125,7 @@ static void rtc_coalesced_timer_update(RTCState *s)
}
}
+#ifdef TARGET_I386
static void rtc_coalesced_timer(void *opaque)
{
RTCState *s = opaque;
@@ -204,7 +204,6 @@ periodic_timer_update(RTCState *s, int64_t current_time, int old_period)
lost_clock = cur_clock - last_periodic_clock;
}
-#ifdef TARGET_I386
/*
* recalculate the coalesced irqs for two reasons:
* a) the lost_clock is more that a period, i,e. the timer
@@ -235,7 +234,7 @@ periodic_timer_update(RTCState *s, int64_t current_time, int old_period)
rtc_coalesced_timer_update(s);
}
}
-#endif
+
/*
* no way to compensate the interrupt if LOST_TICK_POLICY_SLEW
* is not used, we should make the time progress anyway.
@@ -248,9 +247,7 @@ periodic_timer_update(RTCState *s, int64_t current_time, int old_period)
RTC_CLOCK_RATE) + 1;
timer_mod(s->periodic_timer, s->next_periodic_time);
} else {
-#ifdef TARGET_I386
s->irq_coalesced = 0;
-#endif
timer_del(s->periodic_timer);
}
}
@@ -837,13 +834,11 @@ static int rtc_post_load(void *opaque, int version_id)
}
}
-#ifdef TARGET_I386
if (version_id >= 2) {
if (s->lost_tick_policy == LOST_TICK_POLICY_SLEW) {
rtc_coalesced_timer_update(s);
}
}
-#endif
return 0;
}
@@ -900,11 +895,10 @@ static void rtc_notify_clock_reset(Notifier *notifier, void *data)
rtc_set_date_from_host(ISA_DEVICE(s));
periodic_timer_update(s, now, 0);
check_update_timer(s);
-#ifdef TARGET_I386
+
if (s->lost_tick_policy == LOST_TICK_POLICY_SLEW) {
rtc_coalesced_timer_update(s);
}
-#endif
}
/* set CMOS shutdown status register (index 0xF) as S3_resume(0xFE)
@@ -925,12 +919,10 @@ static void rtc_reset(void *opaque)
qemu_irq_lower(s->irq);
-#ifdef TARGET_I386
if (s->lost_tick_policy == LOST_TICK_POLICY_SLEW) {
s->irq_coalesced = 0;
s->irq_reinject_on_ack_count = 0;
}
-#endif
}
static const MemoryRegionOps cmos_ops = {
--
2.9.3
next prev parent reply other threads:[~2017-05-04 12:00 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-04 11:59 [Qemu-devel] [PATCH v2 0/5] mc146818rtc: fix Windows VM clock faster guangrong.xiao
2017-05-04 11:59 ` [Qemu-devel] [PATCH v2 1/5] mc146818rtc: update periodic timer only if it is needed guangrong.xiao
2017-05-04 11:59 ` [Qemu-devel] [PATCH v2 2/5] mc146818rtc: precisely count the clock for periodic timer guangrong.xiao
2017-05-04 12:31 ` Paolo Bonzini
2017-05-05 6:29 ` Xiao Guangrong
2017-05-04 11:59 ` [Qemu-devel] [PATCH v2 3/5] mc146818rtc: ensure LOST_TICK_POLICY_SLEW is only enabled on TARGET_I386 guangrong.xiao
2017-05-04 11:59 ` guangrong.xiao [this message]
2017-05-04 11:59 ` [Qemu-devel] [PATCH v2 5/5] mc146818rtc: embrace all x86 specific code guangrong.xiao
2017-05-04 14:00 ` [Qemu-devel] [PATCH v2 0/5] mc146818rtc: fix Windows VM clock faster no-reply
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