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From 0c83403e6e3ab21a01941be4ec57b02388eeb9c4 Mon Sep 17 00:00:00 2001
From: Ying Fang <fangying1@huawei.com>
Date: Fri, 22 May 2020 18:56:09 +0800
Subject: [PATCH] log: Add some logs on VM runtime path
Add logs on VM runtime path, to make it easier to do trouble shooting.
Signed-off-by: Ying Fang <fangying1@huawei.com>
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index f6d2223..b4b0ed2 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -32,6 +32,7 @@
#include "qemu/range.h"
#include "hw/virtio/virtio-bus.h"
#include "qapi/visitor.h"
+#include "qemu/log.h"
#define VIRTIO_PCI_REGION_SIZE(dev) VIRTIO_PCI_CONFIG_OFF(msix_present(dev))
@@ -1659,7 +1660,9 @@ static void virtio_pci_device_unplugged(DeviceState *d)
VirtIOPCIProxy *proxy = VIRTIO_PCI(d);
bool modern = virtio_pci_modern(proxy);
bool modern_pio = proxy->flags & VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY;
+ VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
+ qemu_log("unplug device name: %s\n", !vdev ? "NULL" : vdev->name);
virtio_pci_stop_ioeventfd(proxy);
if (modern) {
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index 7c3822c..79c2dcf 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -1172,7 +1172,14 @@ int virtio_set_status(VirtIODevice *vdev, uint8_t val)
k->set_status(vdev, val);
}
vdev->status = val;
-
+ if (val) {
+ qemu_log("%s device status is %d that means %s\n",
+ vdev->name, val,
+ (val & VIRTIO_CONFIG_S_DRIVER_OK) ? "DRIVER OK" :
+ (val & VIRTIO_CONFIG_S_DRIVER) ? "DRIVER" :
+ (val & VIRTIO_CONFIG_S_ACKNOWLEDGE) ? "ACKNOWLEDGE" :
+ (val & VIRTIO_CONFIG_S_FAILED) ? "FAILED" : "UNKNOWN");
+ }
return 0;
}
@@ -1614,8 +1621,11 @@ VirtQueue *virtio_add_queue(VirtIODevice *vdev, int queue_size,
break;
}
- if (i == VIRTIO_QUEUE_MAX || queue_size > VIRTQUEUE_MAX_SIZE)
+ if (i == VIRTIO_QUEUE_MAX || queue_size > VIRTQUEUE_MAX_SIZE) {
+ qemu_log("unacceptable queue_size (%d) or num (%d)\n",
+ queue_size, i);
abort();
+ }
vdev->vq[i].vring.num = queue_size;
vdev->vq[i].vring.num_default = queue_size;
diff --git a/monitor/monitor.c b/monitor/monitor.c
index 3ef2817..6f726e8 100644
--- a/monitor/monitor.c
+++ b/monitor/monitor.c
@@ -28,6 +28,7 @@
#include "qapi/qapi-emit-events.h"
#include "qapi/qmp/qdict.h"
#include "qapi/qmp/qstring.h"
+#include "qapi/qmp/qjson.h"
#include "qemu/error-report.h"
#include "qemu/option.h"
#include "sysemu/qtest.h"
@@ -254,6 +255,7 @@ static void monitor_qapi_event_emit(QAPIEvent event, QDict *qdict)
{
Monitor *mon;
MonitorQMP *qmp_mon;
+ QString *json;
trace_monitor_protocol_event_emit(event, qdict);
QTAILQ_FOREACH(mon, &mon_list, entry) {
@@ -264,6 +266,13 @@ static void monitor_qapi_event_emit(QAPIEvent event, QDict *qdict)
qmp_mon = container_of(mon, MonitorQMP, common);
if (qmp_mon->commands != &qmp_cap_negotiation_commands) {
qmp_send_response(qmp_mon, qdict);
+ json = qobject_to_json(QOBJECT(qdict));
+ if (json) {
+ if (!strstr(json->string, "RTC_CHANGE")) {
+ qemu_log("%s\n", qstring_get_str(json));
+ }
+ qobject_unref(json);
+ }
}
}
}
diff --git a/qapi/qmp-dispatch.c b/qapi/qmp-dispatch.c
index e2c366e..6dfdad5 100644
--- a/qapi/qmp-dispatch.c
+++ b/qapi/qmp-dispatch.c
@@ -17,7 +17,9 @@
#include "qapi/qmp/qdict.h"
#include "qapi/qmp/qjson.h"
#include "qapi/qmp/qbool.h"
+#include "qapi/qmp/qstring.h"
#include "sysemu/sysemu.h"
+#include "qemu/log.h"
static QDict *qmp_dispatch_check_obj(const QObject *request, bool allow_oob,
Error **errp)
@@ -83,6 +85,7 @@ static QObject *do_qmp_dispatch(QmpCommandList *cmds, QObject *request,
const char *command;
QDict *args, *dict;
QmpCommand *cmd;
+ QString *json;
QObject *ret = NULL;
dict = qmp_dispatch_check_obj(request, allow_oob, errp);
@@ -128,6 +131,19 @@ static QObject *do_qmp_dispatch(QmpCommandList *cmds, QObject *request,
qobject_ref(args);
}
+ json = qobject_to_json(QOBJECT(args));
+ if (json) {
+ if ((strcmp(command, "query-block-jobs") != 0)
+ && (strcmp(command, "query-migrate") != 0)
+ && (strcmp(command, "query-blockstats") != 0)
+ && (strcmp(command, "query-balloon") != 0)
+ && (strcmp(command, "set_password") != 0)) {
+ qemu_log("qmp_cmd_name: %s, arguments: %s\n",
+ command, qstring_get_str(json));
+ }
+ qobject_unref(json);
+ }
+
cmd->fn(args, &ret, &local_err);
if (local_err) {
error_propagate(errp, local_err);
diff --git a/qdev-monitor.c b/qdev-monitor.c
index 58222c2..c6c1d3f 100644
--- a/qdev-monitor.c
+++ b/qdev-monitor.c
@@ -34,6 +34,7 @@
#include "qemu/qemu-print.h"
#include "sysemu/block-backend.h"
#include "migration/misc.h"
+#include "qemu/log.h"
/*
* Aliases were a bad idea from the start. Let's keep them
@@ -586,6 +587,7 @@ DeviceState *qdev_device_add(QemuOpts *opts, Error **errp)
if (path != NULL) {
bus = qbus_find(path, errp);
if (!bus) {
+ error_setg(errp, "can not find bus for %s", driver);
return NULL;
}
if (!object_dynamic_cast(OBJECT(bus), dc->bus_type)) {
@@ -627,6 +629,8 @@ DeviceState *qdev_device_add(QemuOpts *opts, Error **errp)
/* set properties */
if (qemu_opt_foreach(opts, set_property, dev, &err)) {
+ error_setg(errp, "the bus %s -driver %s set property failed",
+ bus ? bus->name : "None", driver);
goto err_del_dev;
}
@@ -636,6 +640,8 @@ DeviceState *qdev_device_add(QemuOpts *opts, Error **errp)
dev->opts = NULL;
goto err_del_dev;
}
+ qemu_log("add qdev %s:%s success\n", driver,
+ qemu_opts_id(opts) ? qemu_opts_id(opts) : "none");
return dev;
err_del_dev:
--
1.8.3.1
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