diff options
Diffstat (limited to 'drivers/virtio/virtio_pci_common.c')
| -rw-r--r-- | drivers/virtio/virtio_pci_common.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/virtio/virtio_pci_common.c b/drivers/virtio/virtio_pci_common.c index 7902e920fc73..df548a6fb844 100644 --- a/drivers/virtio/virtio_pci_common.c +++ b/drivers/virtio/virtio_pci_common.c @@ -361,6 +361,17 @@ int vp_set_vq_affinity(struct virtqueue *vq, int cpu) return 0; } +const struct cpumask *vp_get_vq_affinity(struct virtio_device *vdev, int index) +{ + struct virtio_pci_device *vp_dev = to_vp_device(vdev); + unsigned int *map = vp_dev->msix_vector_map; + + if (!map || map[index] == VIRTIO_MSI_NO_VECTOR) + return NULL; + + return pci_irq_get_affinity(vp_dev->pci_dev, map[index]); +} + #ifdef CONFIG_PM_SLEEP static int virtio_pci_freeze(struct device *dev) { |