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virtio-pci: fix missing device properties

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Since commit a4ee4c8baa ("virtio: Helper for registering virtio
device types"), virtio-gpu-pci, virtio-vga, and virtio-crypto-pci lost
some properties: "ioeventfd" and "vectors". This may cause various
issues, such as failing migration or invalid properties.

Since those VirtioPCI devices do not have a base name, their class are
initialized with virtio_pci_generic_base_class_init(). However, if the
VirtioPCIDeviceTypeInfo provided a class_init which sets dc->props,
the properties were overwritten by virtio_pci_generic_class_init().

Instead, introduce an intermediary base-type to register the generic
properties.

Fixes: a4ee4c8baa
Cc: qemu-stable@nongnu.org
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20190625232333.30752-1-marcandre.lureau@redhat.com>
This commit is contained in:
Marc-André Lureau 2019-06-26 01:23:33 +02:00 committed by Michael S. Tsirkin
parent a0a49813f7
commit 683c1d89ef
1 changed files with 14 additions and 14 deletions
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28
hw/virtio/virtio-pci.c
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@ -1913,13 +1913,6 @@ static void virtio_pci_generic_class_init(ObjectClass *klass, void *data)
dc->props = virtio_pci_generic_properties;
}
/* Used when the generic type and the base type is the same */
static void virtio_pci_generic_base_class_init(ObjectClass *klass, void *data)
{
virtio_pci_base_class_init(klass, data);
virtio_pci_generic_class_init(klass, NULL);
}
static void virtio_pci_transitional_instance_init(Object *obj)
{
VirtIOPCIProxy *proxy = VIRTIO_PCI(obj);
@ -1938,14 +1931,13 @@ static void virtio_pci_non_transitional_instance_init(Object *obj)
void virtio_pci_types_register(const VirtioPCIDeviceTypeInfo *t)
{
char *base_name = NULL;
TypeInfo base_type_info = {
.name = t->base_name,
.parent = t->parent ? t->parent : TYPE_VIRTIO_PCI,
.instance_size = t->instance_size,
.instance_init = t->instance_init,
.class_size = t->class_size,
.class_init = virtio_pci_base_class_init,
.class_data = (void *)t,
.abstract = true,
.interfaces = t->interfaces,
};
@ -1962,13 +1954,20 @@ void virtio_pci_types_register(const VirtioPCIDeviceTypeInfo *t)
if (!base_type_info.name) {
/* No base type -> register a single generic device type */
base_type_info.name = t->generic_name;
base_type_info.class_init = virtio_pci_generic_base_class_init;
base_type_info.interfaces = generic_type_info.interfaces;
base_type_info.abstract = false;
generic_type_info.name = NULL;
/* use intermediate %s-base-type to add generic device props */
base_name = g_strdup_printf("%s-base-type", t->generic_name);
base_type_info.name = base_name;
base_type_info.class_init = virtio_pci_generic_class_init;
generic_type_info.parent = base_name;
generic_type_info.class_init = virtio_pci_base_class_init;
generic_type_info.class_data = (void *)t;
assert(!t->non_transitional_name);
assert(!t->transitional_name);
} else {
base_type_info.class_init = virtio_pci_base_class_init;
base_type_info.class_data = (void *)t;
}
type_register(&base_type_info);
@ -2006,6 +2005,7 @@ void virtio_pci_types_register(const VirtioPCIDeviceTypeInfo *t)
};
type_register(&transitional_type_info);
}
g_free(base_name);
}
/* virtio-pci-bus */