When QEMU is executed in console mode without any external event sources,
main loop may sleep for a very long time. But in case of replay
there is another event source - event log.
This patch adds main loop notification when the vCPU loop has nothing
to do and main loop should process the inputs from the event log.
Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
---
0 files changed
diff --git a/cpus.c b/cpus.c
index 7ce0d569b3..b4d0d9f21b 100644
--- a/cpus.c
+++ b/cpus.c
@@ -1362,6 +1362,13 @@ static int64_t tcg_get_icount_limit(void)
}
}
+static void notify_aio_contexts(void)
+{
+ /* Wake up other AioContexts. */
+ qemu_clock_notify(QEMU_CLOCK_VIRTUAL);
+ qemu_clock_run_timers(QEMU_CLOCK_VIRTUAL);
+}
+
static void handle_icount_deadline(void)
{
assert(qemu_in_vcpu_thread());
@@ -1370,9 +1377,7 @@ static void handle_icount_deadline(void)
QEMU_TIMER_ATTR_ALL);
if (deadline == 0) {
- /* Wake up other AioContexts. */
- qemu_clock_notify(QEMU_CLOCK_VIRTUAL);
- qemu_clock_run_timers(QEMU_CLOCK_VIRTUAL);
+ notify_aio_contexts();
}
}
}
@@ -1395,6 +1400,10 @@ static void prepare_icount_for_run(CPUState *cpu)
cpu->icount_extra = cpu->icount_budget - insns_left;
replay_mutex_lock();
+
+ if (cpu->icount_budget == 0 && replay_has_checkpoint()) {
+ notify_aio_contexts();
+ }
}
}