@@ -1,6 +1,6 @@
# -*- mode: python -*-
#
-# Copyright (C) 2011-2014 Lluís Vilanova <vilanova@ac.upc.edu>
+# Copyright (C) 2011-2016 Lluís Vilanova <vilanova@ac.upc.edu>
#
# This work is licensed under the terms of the GNU GPL, version 2 or later.
# See the COPYING file in the top-level directory.
@@ -29,11 +29,12 @@
#
# @name: Event name.
# @state: Tracing state.
+# @vcpu: Whether this is a per-vCPU event (since 2.6).
#
# Since 2.2
##
{ 'struct': 'TraceEventInfo',
- 'data': {'name': 'str', 'state': 'TraceEventState'} }
+ 'data': {'name': 'str', 'state': 'TraceEventState', 'vcpu': 'bool'} }
##
# @trace-event-get-state:
@@ -6,7 +6,7 @@ trace/generated-events.c
"""
__author__ = "Lluís Vilanova <vilanova@ac.upc.edu>"
-__copyright__ = "Copyright 2012-2014, Lluís Vilanova <vilanova@ac.upc.edu>"
+__copyright__ = "Copyright 2012-2016, Lluís Vilanova <vilanova@ac.upc.edu>"
__license__ = "GPL version 2 or (at your option) any later version"
__maintainer__ = "Stefan Hajnoczi"
@@ -27,8 +27,15 @@ def generate(events, backend):
out('TraceEvent trace_events[TRACE_EVENT_COUNT] = {')
for e in events:
- out(' { .id = %(id)s, .name = \"%(name)s\", .sstate = %(sstate)s, .dstate = 0 },',
+ if "vcpu" in e.properties and "tcg-exec" in e.properties:
+ vcpu_id = "TRACE_CPU_" + e.name.upper()
+ else:
+ vcpu_id = "TRACE_CPU_EVENT_COUNT"
+ out(' { .id = %(id)s, .cpu_id = %(vcpu_id)s,'
+ ' .name = \"%(name)s\",'
+ ' .sstate = %(sstate)s, .dstate = 0 },',
id = "TRACE_" + e.name.upper(),
+ vcpu_id = vcpu_id,
name = e.name,
sstate = "TRACE_%s_ENABLED" % e.name.upper())
@@ -6,7 +6,7 @@ trace/generated-events.h
"""
__author__ = "Lluís Vilanova <vilanova@ac.upc.edu>"
-__copyright__ = "Copyright 2012-2014, Lluís Vilanova <vilanova@ac.upc.edu>"
+__copyright__ = "Copyright 2012-2016, Lluís Vilanova <vilanova@ac.upc.edu>"
__license__ = "GPL version 2 or (at your option) any later version"
__maintainer__ = "Stefan Hajnoczi"
@@ -34,13 +34,23 @@ def generate(events, backend):
out(' TRACE_EVENT_COUNT',
'} TraceEventID;')
+ # per-vCPU event identifiers
+ out('typedef enum {')
+
+ for e in events:
+ if "vcpu" in e.properties and "tcg-exec" in e.properties:
+ out(' TRACE_CPU_%s,' % e.name.upper())
+
+ out(' TRACE_CPU_EVENT_COUNT',
+ '} TraceEventCPUID;')
+
# static state
for e in events:
if 'disable' in e.properties:
enabled = 0
else:
enabled = 1
- if "tcg-trans" in e.properties:
+ if "tcg-exec" in e.properties:
# a single define for the two "sub-events"
out('#define TRACE_%(name)s_ENABLED %(enabled)d',
name=e.original.original.name.upper(),
@@ -1,7 +1,7 @@
/*
* Interface for configuring and controlling the state of tracing events.
*
- * Copyright (C) 2011-2014 Lluís Vilanova <vilanova@ac.upc.edu>
+ * Copyright (C) 2011-2016 Lluís Vilanova <vilanova@ac.upc.edu>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
@@ -39,6 +39,12 @@ static inline TraceEventID trace_event_get_id(TraceEvent *ev)
return ev->id;
}
+static inline TraceEventCPUID trace_event_get_cpu_id(TraceEvent *ev)
+{
+ assert(ev != NULL);
+ return ev->cpu_id;
+}
+
static inline const char * trace_event_get_name(TraceEvent *ev)
{
assert(ev != NULL);
@@ -87,6 +87,13 @@ static TraceEventID trace_event_count(void);
static TraceEventID trace_event_get_id(TraceEvent *ev);
/**
+ * trace_event_get_cpu_id:
+ *
+ * Get the per-vCPU identifier of an event.
+ */
+static TraceEventCPUID trace_event_get_cpu_id(TraceEvent *ev);
+
+/**
* trace_event_get_name:
*
* Get the name of an event.
@@ -1,7 +1,7 @@
/*
* Interface for configuring and controlling the state of tracing events.
*
- * Copyright (C) 2012 Lluís Vilanova <vilanova@ac.upc.edu>
+ * Copyright (C) 2012-2016 Lluís Vilanova <vilanova@ac.upc.edu>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
@@ -16,6 +16,7 @@
/**
* TraceEvent:
* @id: Unique event identifier.
+ * @cpu_id: Unique per-vCPU event identifier.
* @name: Event name.
* @sstate: Static tracing state.
* @dstate: Dynamic tracing state.
@@ -24,6 +25,7 @@
*/
typedef struct TraceEvent {
TraceEventID id;
+ TraceEventCPUID cpu_id;
const char * name;
const bool sstate;
bool dstate;
@@ -1,7 +1,7 @@
/*
* QMP commands for tracing events.
*
- * Copyright (C) 2014 Lluís Vilanova <vilanova@ac.upc.edu>
+ * Copyright (C) 2014-2016 Lluís Vilanova <vilanova@ac.upc.edu>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
@@ -22,6 +22,7 @@ TraceEventInfoList *qmp_trace_event_get_state(const char *name, Error **errp)
while ((ev = trace_event_pattern(name, ev)) != NULL) {
TraceEventInfoList *elem = g_new(TraceEventInfoList, 1);
elem->value = g_new(TraceEventInfo, 1);
+ elem->value->vcpu = trace_event_get_cpu_id(ev) != TRACE_CPU_EVENT_COUNT;
elem->value->name = g_strdup(trace_event_get_name(ev));
if (!trace_event_get_state_static(ev)) {
elem->value->state = TRACE_EVENT_STATE_UNAVAILABLE;
A separate ID space ('TRACE_CPU_*') is used in attribute 'cpu_id' that only contains events with the 'vcpu' property. These are later used to select the appropriate physical TB cache based on what events are active. Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> --- qapi/trace.json | 5 +++-- scripts/tracetool/format/events_c.py | 11 +++++++++-- scripts/tracetool/format/events_h.py | 14 ++++++++++++-- trace/control-internal.h | 8 +++++++- trace/control.h | 7 +++++++ trace/event-internal.h | 4 +++- trace/qmp.c | 3 ++- 7 files changed, 43 insertions(+), 9 deletions(-)