diff options
| -rw-r--r-- | hw/net/virtio-net.c | 10 | ||||
| -rw-r--r-- | hw/virtio/virtio.c | 7 | ||||
| -rw-r--r-- | include/hw/virtio/virtio.h | 2 |
3 files changed, 19 insertions, 0 deletions
diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c index bc0f31b666..6e8c51a2db 100644 --- a/hw/net/virtio-net.c +++ b/hw/net/virtio-net.c @@ -3064,6 +3064,15 @@ static void virtio_net_set_multiqueue(VirtIONet *n, int multiqueue) virtio_net_set_queue_pairs(n); } +static int virtio_net_pre_load_queues(VirtIODevice *vdev) +{ + virtio_net_set_multiqueue(VIRTIO_NET(vdev), + virtio_has_feature(vdev->guest_features, VIRTIO_NET_F_RSS) || + virtio_has_feature(vdev->guest_features, VIRTIO_NET_F_MQ)); + + return 0; +} + static int virtio_net_post_load_device(void *opaque, int version_id) { VirtIONet *n = opaque; @@ -4073,6 +4082,7 @@ static void virtio_net_class_init(ObjectClass *klass, void *data) vdc->guest_notifier_mask = virtio_net_guest_notifier_mask; vdc->guest_notifier_pending = virtio_net_guest_notifier_pending; vdc->legacy_features |= (0x1 << VIRTIO_NET_F_GSO); + vdc->pre_load_queues = virtio_net_pre_load_queues; vdc->post_load = virtio_net_post_load_virtio; vdc->vmsd = &vmstate_virtio_net_device; vdc->primary_unplug_pending = primary_unplug_pending; diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c index a26f18908e..f12c4aa81e 100644 --- a/hw/virtio/virtio.c +++ b/hw/virtio/virtio.c @@ -3255,6 +3255,13 @@ virtio_load(VirtIODevice *vdev, QEMUFile *f, int version_id) config_len--; } + if (vdc->pre_load_queues) { + ret = vdc->pre_load_queues(vdev); + if (ret) { + return ret; + } + } + num = qemu_get_be32(f); if (num > VIRTIO_QUEUE_MAX) { diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h index f526ecc8fc..6386910280 100644 --- a/include/hw/virtio/virtio.h +++ b/include/hw/virtio/virtio.h @@ -210,6 +210,8 @@ struct VirtioDeviceClass { void (*guest_notifier_mask)(VirtIODevice *vdev, int n, bool mask); int (*start_ioeventfd)(VirtIODevice *vdev); void (*stop_ioeventfd)(VirtIODevice *vdev); + /* Called before loading queues. Useful to add queues before loading. */ + int (*pre_load_queues)(VirtIODevice *vdev); /* Saving and loading of a device; trying to deprecate save/load * use vmsd for new devices. */ |