From 4251aab5b2beb68d1800cd4a329361ff6f57c430 Mon Sep 17 00:00:00 2001 From: Stefan Hajnoczi Date: Wed, 20 Dec 2023 08:47:52 -0500 Subject: [PATCH 07/22] qdev-properties: alias all object class properties RH-Author: Stefan Hajnoczi RH-MergeRequest: 219: virtio-blk: add iothread-vq-mapping parameter RH-Jira: RHEL-17369 RHEL-20764 RHEL-7356 RH-Acked-by: Kevin Wolf RH-Acked-by: Hanna Czenczek RH-Commit: [3/17] bc5d0aafe4645dacf9277904a2b20760d6e676e1 (stefanha/centos-stream-qemu-kvm) qdev_alias_all_properties() aliases a DeviceState's qdev properties onto an Object. This is used for VirtioPCIProxy types so that --device virtio-blk-pci has properties of its embedded --device virtio-blk-device object. Currently this function is implemented using qdev properties. Change the function to use QOM object class properties instead. This works because qdev properties create QOM object class properties, but it also catches any QOM object class-only properties that have no qdev properties. This change ensures that properties of devices are shown with --device foo,\? even if they are QOM object class properties. Signed-off-by: Stefan Hajnoczi Message-ID: <20231220134755.814917-2-stefanha@redhat.com> Reviewed-by: Kevin Wolf Signed-off-by: Kevin Wolf (cherry picked from commit 350147a871a545ab56b4a1062c8485635d9ffc24) Signed-off-by: Stefan Hajnoczi --- hw/core/qdev-properties.c | 18 ++++++++++-------- include/hw/qdev-properties.h | 4 ++-- 2 files changed, 12 insertions(+), 10 deletions(-) diff --git a/hw/core/qdev-properties.c b/hw/core/qdev-properties.c index 840006e953..7d6fa726fd 100644 --- a/hw/core/qdev-properties.c +++ b/hw/core/qdev-properties.c @@ -1076,16 +1076,18 @@ void device_class_set_props(DeviceClass *dc, Property *props) void qdev_alias_all_properties(DeviceState *target, Object *source) { ObjectClass *class; - Property *prop; + ObjectPropertyIterator iter; + ObjectProperty *prop; class = object_get_class(OBJECT(target)); - do { - DeviceClass *dc = DEVICE_CLASS(class); - for (prop = dc->props_; prop && prop->name; prop++) { - object_property_add_alias(source, prop->name, - OBJECT(target), prop->name); + object_class_property_iter_init(&iter, class); + while ((prop = object_property_iter_next(&iter))) { + if (object_property_find(source, prop->name)) { + continue; /* skip duplicate properties */ } - class = object_class_get_parent(class); - } while (class != object_class_by_name(TYPE_DEVICE)); + + object_property_add_alias(source, prop->name, + OBJECT(target), prop->name); + } } diff --git a/include/hw/qdev-properties.h b/include/hw/qdev-properties.h index 25743a29a0..09aa04ca1e 100644 --- a/include/hw/qdev-properties.h +++ b/include/hw/qdev-properties.h @@ -230,8 +230,8 @@ void qdev_property_add_static(DeviceState *dev, Property *prop); * @target: Device which has properties to be aliased * @source: Object to add alias properties to * - * Add alias properties to the @source object for all qdev properties on - * the @target DeviceState. + * Add alias properties to the @source object for all properties on the @target + * DeviceState. * * This is useful when @target is an internal implementation object * owned by @source, and you want to expose all the properties of that -- 2.39.3