[PATCH 2/2] Add documentation for QMP commands:
- query-trace
- query-trace-events
- query-trace-file.
Signed-off-by: Prerna Saxena <pre...@linux.vnet.ibm.com>
---
qmp-commands.hx | 94 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 94 insertions(+), 0 deletions(-)
diff --git a/qmp-commands.hx b/qmp-commands.hx
index 793cf1c..bc79b55 100644
--- a/qmp-commands.hx
+++ b/qmp-commands.hx
@@ -1539,3 +1539,97 @@ Example:
EQMP
+SQMP
+query-trace
+-------------
+
+Show contents of trace buffer.
+
+Returns a set of json-objects containing the following data:
+
+- "event": Event ID for the trace-event(json-int)
+- "timestamp": trace timestamp (json-int)
+- "arg1 .. arg6": Arguments logged by the trace-event (json-int)
+
+Example:
+
+-> { "execute": "query-trace" }
+<- {
+ "return":{
+ "event": 22,
+ "timestamp": 129456235912365,
+ "arg1": 886
+ "arg2": 80,
+ "arg3": 0,
+ "arg4": 0,
+ "arg5": 0,
+ "arg6": 0,
+ },
+ {
+ "event": 22,
+ "timestamp": 129456235973407,
+ "arg1": 886,
+ "arg2": 80,
+ "arg3": 0,
+ "arg4": 0,
+ "arg5": 0,
+ "arg6": 0
+ },
+ ...
+ }
+
+EQMP
+
+SQMP
+query-trace-events
+------------------
+
+Show all available trace-events & their state.
+
+Returns a set of json-objects containing the following data:
+
+- "name": Name of Trace-event (json-string)
+- "event-id": Event ID of Trace-event (json-int)
+- "state": State of trace-event [ '0': inactive; '1':active ] (json-int)
+
+Example:
+
+-> { "execute": "query-trace-events" }
+<- {
+ "return":{
+ "name": "qemu_malloc",
+ "event-id": 0
+ "state": 0,
+ },
+ {
+ "name": "qemu_realloc",
+ "event-id": 1,
+ "state": 0
+ },
+ ...
+ }
+
+EQMP
+
+SQMP
+query-trace-file
+----------------
+
+Display currently set trace file name and its status.
+
+Returns a set of json-objects containing the following data:
+
+- "trace-file": Name of Trace-file (json-string)
+- "status": State of trace-event [ '0': disabled; '1':enabled ] (json-int)
+
+Example:
+
+-> { "execute": "query-trace-file" }
+<- {
+ "return":{
+ "trace-file": "trace-26609",
+ "status": 1
+ }
+ }
+
+EQMP
--
1.7.2.2
--
Prerna Saxena
Linux Technology Centre,
IBM Systems and Technology Lab,
Bangalore, India
