On 2021/1/23 上午4:08, Eugenio Pérez wrote:
Cannot destroy address spaces of IOMMU-aware virtio devices without it,
since they can contain memory listeners.
It's better to explain why the one in finalize doesn't work here.
Thanks
Fixes: c611c76417f ("virtio: add MemoryListener to cache ring translations")
Buglink: https://bugs.launchpad.net/qemu/+bug/1912846
Signed-off-by: Eugenio Pérez <epere...@redhat.com>
---
hw/virtio/virtio.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index b308026596..67efd2c301 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -3680,6 +3680,7 @@ static void virtio_device_unrealize(DeviceState *dev)
VirtIODevice *vdev = VIRTIO_DEVICE(dev);
VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(dev);
+ memory_listener_unregister(&vdev->listener);
virtio_bus_device_unplugged(vdev);
if (vdc->unrealize != NULL) {