ping

On 22.05.2020 09:47, Pavel Dovgalyuk wrote:
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.dovga...@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();
+        }
      }
  }

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