From 46967b1a43dead33fa0c4afecd91b456693d1c4f Mon Sep 17 00:00:00 2001 From: Pavel Dovgalyuk Date: Thu, 1 Apr 2021 11:19:51 +0300 Subject: [PATCH] replay: notify CPU on event 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 Message-Id: <161726519158.1476949.7614181684462079836.stgit@pasha-ThinkPad-X280> Signed-off-by: Paolo Bonzini --- replay/replay-events.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/replay/replay-events.c b/replay/replay-events.c index a1c6bb934e..15983dd250 100644 --- a/replay/replay-events.c +++ b/replay/replay-events.c @@ -15,6 +15,7 @@ #include "replay-internal.h" #include "block/aio.h" #include "ui/input.h" +#include "hw/core/cpu.h" typedef struct Event { ReplayAsyncEventKind event_kind; @@ -126,6 +127,7 @@ void replay_add_event(ReplayAsyncEventKind event_kind, g_assert(replay_mutex_locked()); QTAILQ_INSERT_TAIL(&events_list, event, events); + qemu_cpu_kick(first_cpu); } void replay_bh_schedule_event(QEMUBH *bh)