From 1c5c50193147854ca3ae844a4b85813d191d5510 Mon Sep 17 00:00:00 2001
From: Stefan Hajnoczi <stefanha@redhat.com>
Date: Tue, 2 Sep 2014 19:32:34 +0200
Subject: [PATCH 04/32] qdev-monitor: include QOM properties in -device FOO,
 help output

Message-id: <1409686354-5978-1-git-send-email-stefanha@redhat.com>
Patchwork-id: 60814
O-Subject: [PATCH] qdev-monitor: include QOM properties in -device FOO, help output
Bugzilla: 1133736
RH-Acked-by: Dr. David Alan Gilbert (git) <dgilbert@redhat.com>
RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
RH-Acked-by: Fam Zheng <famz@redhat.com>

Bugzilla: 1133736
Brew: http://brewweb.devel.redhat.com/brew/taskinfo?taskID=7907194

Update -device FOO,help to include QOM properties in addition to qdev
properties.  Devices are gradually adding more QOM properties that are
not reflected as qdev properties.

It is important to report all device properties since management tools
like libvirt use this information (and device-list-properties QMP) to
detect the presence of QEMU features.

This patch reuses the device-list-properties QMP machinery to avoid code
duplication.

Reported-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Tested-by: Cole Robinson <crobinso@redhat.com>
(cherry picked from commit ef523587da4f213ca17133a90402d0815ecf08ee)
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
---
 qdev-monitor.c | 40 +++++++++++++++++-----------------------
 1 file changed, 17 insertions(+), 23 deletions(-)

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
 qdev-monitor.c | 40 +++++++++++++++++-----------------------
 1 file changed, 17 insertions(+), 23 deletions(-)

diff --git a/qdev-monitor.c b/qdev-monitor.c
index f87f3d8..5fe5e75 100644
--- a/qdev-monitor.c
+++ b/qdev-monitor.c
@@ -182,9 +182,10 @@ static const char *find_typename_by_alias(const char *alias)
 
 int qdev_device_help(QemuOpts *opts)
 {
+    Error *local_err = NULL;
     const char *driver;
-    Property *prop;
-    ObjectClass *klass;
+    DevicePropertyInfoList *prop_list;
+    DevicePropertyInfoList *prop;
 
     driver = qemu_opt_get(opts, "driver");
     if (driver && is_help_option(driver)) {
@@ -196,35 +197,28 @@ int qdev_device_help(QemuOpts *opts)
         return 0;
     }
 
-    klass = object_class_by_name(driver);
-    if (!klass) {
+    if (!object_class_by_name(driver)) {
         const char *typename = find_typename_by_alias(driver);
 
         if (typename) {
             driver = typename;
-            klass = object_class_by_name(driver);
         }
     }
 
-    if (!object_class_dynamic_cast(klass, TYPE_DEVICE)) {
-        return 0;
+    prop_list = qmp_device_list_properties(driver, &local_err);
+    if (!prop_list) {
+        error_printf("%s\n", error_get_pretty(local_err));
+        error_free(local_err);
+        return 1;
     }
-    do {
-        for (prop = DEVICE_CLASS(klass)->props; prop && prop->name; prop++) {
-            /*
-             * TODO Properties without a parser are just for dirty hacks.
-             * qdev_prop_ptr is the only such PropertyInfo.  It's marked
-             * for removal.  This conditional should be removed along with
-             * it.
-             */
-            if (!prop->info->set) {
-                continue;           /* no way to set it, don't show */
-            }
-            error_printf("%s.%s=%s\n", driver, prop->name,
-                         prop->info->legacy_name ?: prop->info->name);
-        }
-        klass = object_class_get_parent(klass);
-    } while (klass != object_class_by_name(TYPE_DEVICE));
+
+    for (prop = prop_list; prop; prop = prop->next) {
+        error_printf("%s.%s=%s\n", driver,
+                     prop->value->name,
+                     prop->value->type);
+    }
+
+    qapi_free_DevicePropertyInfoList(prop_list);
     return 1;
 }
 
-- 
1.8.3.1