For vhost user backend migration we'll need to disable memory logging on the device. Let's prepare a corresponding handler for the device.
Signed-off-by: Vladimir Sementsov-Ogievskiy <[email protected]> --- hw/virtio/vhost.c | 10 ++++++++++ include/hw/virtio/virtio.h | 2 ++ 2 files changed, 12 insertions(+) diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c index 09d00e4d98..3e5192ec23 100644 --- a/hw/virtio/vhost.c +++ b/hw/virtio/vhost.c @@ -1138,6 +1138,16 @@ static int vhost_migration_log(MemoryListener *listener, bool enable) struct vhost_dev *dev = container_of(listener, struct vhost_dev, memory_listener); int r; + + if (dev->vdev) { + VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(dev->vdev); + + if (vdc->skip_vhost_migration_log && + vdc->skip_vhost_migration_log(dev->vdev)) { + return 0; + } + } + if (enable == dev->log_enabled) { return 0; } diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h index 7db8046766..620ee4e389 100644 --- a/include/hw/virtio/virtio.h +++ b/include/hw/virtio/virtio.h @@ -238,6 +238,8 @@ struct VirtioDeviceClass { /* May be called even when vdev->vhost_started is false */ struct vhost_dev *(*get_vhost)(VirtIODevice *vdev); void (*toggle_device_iotlb)(VirtIODevice *vdev); + + bool (*skip_vhost_migration_log)(VirtIODevice *vdev); }; void virtio_instance_init_common(Object *proxy_obj, void *data, -- 2.48.1
