[Qemu-devel] [PATCH v16 13/21] replay: shutdown event

[Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>]

This patch records and replays simulator shutdown event.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>

Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
---
 replay/replay-internal.h |    2 ++
 replay/replay.c          |   14 ++++++++++++++
 replay/replay.h          |    5 +++++
 stubs/replay.c           |    5 +++++
 vl.c                     |    1 +
 5 files changed, 27 insertions(+), 0 deletions(-)

diff --git a/replay/replay-internal.h b/replay/replay-internal.h
index a79f4af..92d4749 100755
--- a/replay/replay-internal.h
+++ b/replay/replay-internal.h
@@ -23,6 +23,8 @@ enum ReplayEvents {
     EVENT_EXCEPTION,
     /* for async events */
     EVENT_ASYNC,
+    /* for shutdown request */
+    EVENT_SHUTDOWN,
     /* for clock read/writes */
     /* some of grteater codes are reserved for clocks */
     EVENT_CLOCK,
diff --git a/replay/replay.c b/replay/replay.c
index 1df19f6..612149e 100755
--- a/replay/replay.c
+++ b/replay/replay.c
@@ -13,6 +13,7 @@
 #include "replay.h"
 #include "replay-internal.h"
 #include "qemu/timer.h"
+#include "sysemu/sysemu.h"
 
 ReplayMode replay_mode = REPLAY_MODE_NONE;
 
@@ -33,6 +34,10 @@ bool replay_next_event_is(int event)
             res = true;
         }
         switch (replay_data_kind) {
+        case EVENT_SHUTDOWN:
+            replay_finish_event();
+            qemu_system_shutdown_request();
+            break;
         default:
             /* clock, time_t, checkpoint and other events */
             return res;
@@ -145,3 +150,12 @@ bool replay_has_interrupt(void)
     }
     return res;
 }
+
+void replay_shutdown_request(void)
+{
+    if (replay_mode == REPLAY_MODE_RECORD) {
+        replay_mutex_lock();
+        replay_put_event(EVENT_SHUTDOWN);
+        replay_mutex_unlock();
+    }
+}
diff --git a/replay/replay.h b/replay/replay.h
index 2398509..fcc93d1 100755
--- a/replay/replay.h
+++ b/replay/replay.h
@@ -66,6 +66,11 @@ int64_t replay_read_clock(ReplayClockKind kind);
             ? replay_save_clock((clock), (value))                       \
         : (value))
 
+/* Events */
+
+/*! Called when qemu shutdown is requested. */
+void replay_shutdown_request(void);
+
 /* Asynchronous events queue */
 
 /*! Disables storing events in the queue */
diff --git a/stubs/replay.c b/stubs/replay.c
index b9deb51..cd9511b 100755
--- a/stubs/replay.c
+++ b/stubs/replay.c
@@ -1,4 +1,5 @@
 #include "replay/replay.h"
+#include "sysemu/sysemu.h"
 
 ReplayMode replay_mode;
 
@@ -11,3 +12,7 @@ int64_t replay_read_clock(unsigned int kind)
 {
     return 0;
 }
+
+void qemu_system_shutdown_request(void)
+{
+}
diff --git a/vl.c b/vl.c
index 0adbbd6..905404b 100644
--- a/vl.c
+++ b/vl.c
@@ -1814,6 +1814,7 @@ void qemu_system_killed(int signal, pid_t pid)
 void qemu_system_shutdown_request(void)
 {
     trace_qemu_system_shutdown_request();
+    replay_shutdown_request();
     shutdown_requested = 1;
     qemu_notify_event();
 }