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[Qemu-stable] [PATCH] virtio-pci: fix missing device properties
From: |
Marc-André Lureau |
Subject: |
[Qemu-stable] [PATCH] virtio-pci: fix missing device properties |
Date: |
Wed, 26 Jun 2019 01:23:33 +0200 |
Since commit a4ee4c8baa37154 ("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: a4ee4c8baa37154f42b4dc6a13fee79268d15238
Cc: address@hidden
Signed-off-by: Marc-André Lureau <address@hidden>
---
hw/virtio/virtio-pci.c | 28 ++++++++++++++--------------
1 file changed, 14 insertions(+), 14 deletions(-)
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index e6d5467e54..62c4977332 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -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,
};
TypeInfo generic_type_info = {
@@ -1961,13 +1953,20 @@ 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);
@@ -2005,6 +2004,7 @@ void virtio_pci_types_register(const
VirtioPCIDeviceTypeInfo *t)
};
type_register(&transitional_type_info);
}
+ g_free(base_name);
}
/* virtio-pci-bus */
--
2.22.0.rc2.384.g1a9a72ea1d
- [Qemu-stable] [PATCH] virtio-pci: fix missing device properties,
Marc-André Lureau <=