This patch introduces 'info replay' monitor command and
corresponding qmp request.
These commands request the current record/replay mode, replay log file
name, and the instruction count (number of recorded/replayed
instructions). The instruction count can be used with the
replay_seek/replay_break commands added in the next two patches.
Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru>
Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <
160174520026.12451.
13112161947433306561.stgit@pasha-ThinkPad-X280>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Show SEV information.
ERST
+ {
+ .name = "replay",
+ .args_type = "",
+ .params = "",
+ .help = "show record/replay information",
+ .cmd = hmp_info_replay,
+ },
+SRST
+ ``info replay``
+ Display the record/replay information: mode and the current icount.
+ERST
void hmp_info_vm_generation_id(Monitor *mon, const QDict *qdict);
void hmp_info_memory_size_summary(Monitor *mon, const QDict *qdict);
void hmp_info_sev(Monitor *mon, const QDict *qdict);
+void hmp_info_replay(Monitor *mon, const QDict *qdict);
#endif
#
# @icount: Current instruction count. Appears when execution record/replay
# is enabled. Used for "time-traveling" to match the moment
-# in the recorded execution with the snapshots. (since 5.2)
+# in the recorded execution with the snapshots. This counter may
+# be obtained through @query-replay command (since 5.2)
#
# Since: 1.3
#
##
{ 'enum': 'ReplayMode',
'data': [ 'none', 'record', 'play' ] }
+
+##
+# @ReplayInfo:
+#
+# Record/replay information.
+#
+# @mode: current mode.
+#
+# @filename: name of the record/replay log file.
+# It is present only in record or replay modes, when the log
+# is recorded or replayed.
+#
+# @icount: current number of executed instructions.
+#
+# Since: 5.2
+#
+##
+{ 'struct': 'ReplayInfo',
+ 'data': { 'mode': 'ReplayMode', '*filename': 'str', 'icount': 'int' } }
+
+##
+# @query-replay:
+#
+# Retrieve the record/replay information.
+# It includes current instruction count which may be used for
+# @replay-break and @replay-seek commands.
+#
+# Returns: record/replay information.
+#
+# Since: 5.2
+#
+# Example:
+#
+# -> { "execute": "query-replay" }
+# <- { "return": { "mode": "play", "filename": "log.rr", "icount": 220414 } }
+#
+##
+{ 'command': 'query-replay',
+ 'returns': 'ReplayInfo' }
'replay-net.c',
'replay-audio.c',
'replay-random.c',
+ 'replay-debugging.c',
))
--- /dev/null
+/*
+ * replay-debugging.c
+ *
+ * Copyright (c) 2010-2020 Institute for System Programming
+ * of the Russian Academy of Sciences.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "sysemu/replay.h"
+#include "replay-internal.h"
+#include "monitor/hmp.h"
+#include "monitor/monitor.h"
+#include "qapi/qapi-commands-replay.h"
+
+void hmp_info_replay(Monitor *mon, const QDict *qdict)
+{
+ if (replay_mode == REPLAY_MODE_NONE) {
+ monitor_printf(mon, "Record/replay is not active\n");
+ } else {
+ monitor_printf(mon,
+ "%s execution '%s': instruction count = %"PRId64"\n",
+ replay_mode == REPLAY_MODE_RECORD ? "Recording" : "Replaying",
+ replay_get_filename(), replay_get_current_icount());
+ }
+}
+
+ReplayInfo *qmp_query_replay(Error **errp)
+{
+ ReplayInfo *retval = g_new0(ReplayInfo, 1);
+
+ retval->mode = replay_mode;
+ if (replay_get_filename()) {
+ retval->filename = g_strdup(replay_get_filename());
+ retval->has_filename = true;
+ }
+ retval->icount = replay_get_current_icount();
+ return retval;
+}