All of lore.kernel.org
 help / color / mirror / Atom feed
* [PATCH v2] replay: notify CPU on event
@ 2021-03-29  7:43 Pavel Dovgalyuk
  2021-03-29 10:29 ` Paolo Bonzini
  0 siblings, 1 reply; 7+ messages in thread
From: Pavel Dovgalyuk @ 2021-03-29  7:43 UTC (permalink / raw)
  To: qemu-devel; +Cc: alex.bennee, pbonzini, pavel.dovgalyuk

This patch enables vCPU notification to wake it up
when new async event comes in replay mode.

The motivation of this patch is the following.
Consider recorded block async event. It is saved into the log
with one of the checkpoints. This checkpoint may be passed in
vCPU loop. In replay mode when this async event is read from
the log, and block thread task is not finished yet, vCPU thread
goes to sleep. That is why this patch adds waking up the vCPU
to process this finished event.

Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru>
---
 replay/replay-events.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/replay/replay-events.c b/replay/replay-events.c
index a1c6bb934e..92dc800219 100644
--- a/replay/replay-events.c
+++ b/replay/replay-events.c
@@ -126,6 +126,7 @@ void replay_add_event(ReplayAsyncEventKind event_kind,
 
     g_assert(replay_mutex_locked());
     QTAILQ_INSERT_TAIL(&events_list, event, events);
+    qemu_clock_notify(QEMU_CLOCK_VIRTUAL);
 }
 
 void replay_bh_schedule_event(QEMUBH *bh)



^ permalink raw reply related	[flat|nested] 7+ messages in thread
* [PATCH v2] replay: notify CPU on event
@ 2021-02-16  9:34 Pavel Dovgalyuk
  2021-02-24  8:26 ` Pavel Dovgalyuk
  2021-03-15  6:01 ` Pavel Dovgalyuk
  0 siblings, 2 replies; 7+ messages in thread
From: Pavel Dovgalyuk @ 2021-02-16  9:34 UTC (permalink / raw)
  To: qemu-devel; +Cc: alex.bennee, pbonzini, pavel.dovgalyuk

This patch enables vCPU notification to wake it up
when new async event comes in replay mode.

The motivation of this patch is the following.
Consider recorded block async event. It is saved into the log
with one of the checkpoints. This checkpoint may be passed in
vCPU loop. In replay mode when this async event is read from
the log, and block thread task is not finished yet, vCPU thread
goes to sleep. That is why this patch adds waking up the vCPU
to process this finished event.

Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru>
---
 replay/replay-events.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/replay/replay-events.c b/replay/replay-events.c
index a1c6bb934e..92dc800219 100644
--- a/replay/replay-events.c
+++ b/replay/replay-events.c
@@ -126,6 +126,7 @@ void replay_add_event(ReplayAsyncEventKind event_kind,
 
     g_assert(replay_mutex_locked());
     QTAILQ_INSERT_TAIL(&events_list, event, events);
+    qemu_clock_notify(QEMU_CLOCK_VIRTUAL);
 }
 
 void replay_bh_schedule_event(QEMUBH *bh)



^ permalink raw reply related	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2021-03-29 12:12 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-03-29  7:43 [PATCH v2] replay: notify CPU on event Pavel Dovgalyuk
2021-03-29 10:29 ` Paolo Bonzini
2021-03-29 11:23   ` Pavel Dovgalyuk
2021-03-29 12:10     ` Paolo Bonzini
  -- strict thread matches above, loose matches on Subject: below --
2021-02-16  9:34 Pavel Dovgalyuk
2021-02-24  8:26 ` Pavel Dovgalyuk
2021-03-15  6:01 ` Pavel Dovgalyuk

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.