diff options
| -rw-r--r-- | hw/core/machine.c | 1 | ||||
| -rw-r--r-- | hw/virtio/virtio-net-pci.c | 10 |
2 files changed, 10 insertions, 1 deletions
diff --git a/hw/core/machine.c b/hw/core/machine.c index 4386f57b5c..979133f8b7 100644 --- a/hw/core/machine.c +++ b/hw/core/machine.c @@ -39,6 +39,7 @@ GlobalProperty hw_compat_5_2[] = { { "ICH9-LPC", "smm-compat", "on"}, { "PIIX4_PM", "smm-compat", "on"}, + { "virtio-net-pci", "vectors", "3"}, }; const size_t hw_compat_5_2_len = G_N_ELEMENTS(hw_compat_5_2); diff --git a/hw/virtio/virtio-net-pci.c b/hw/virtio/virtio-net-pci.c index 292d13d278..aa0b3caecb 100644 --- a/hw/virtio/virtio-net-pci.c +++ b/hw/virtio/virtio-net-pci.c @@ -41,7 +41,8 @@ struct VirtIONetPCI { static Property virtio_net_properties[] = { DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true), - DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 3), + DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, + DEV_NVECTORS_UNSPECIFIED), DEFINE_PROP_END_OF_LIST(), }; @@ -50,6 +51,13 @@ static void virtio_net_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) DeviceState *qdev = DEVICE(vpci_dev); VirtIONetPCI *dev = VIRTIO_NET_PCI(vpci_dev); DeviceState *vdev = DEVICE(&dev->vdev); + VirtIONet *net = VIRTIO_NET(vdev); + + if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) { + vpci_dev->nvectors = 2 * MAX(net->nic_conf.peers.queues, 1) + + 1 /* Config interrupt */ + + 1 /* Control vq */; + } virtio_net_set_netclient_name(&dev->vdev, qdev->id, object_get_typename(OBJECT(qdev))); |