diff options
Diffstat (limited to 'hw/virtio/vhost.c')
| -rw-r--r-- | hw/virtio/vhost.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c index 9d5850a7d7..b08290036d 100644 --- a/hw/virtio/vhost.c +++ b/hw/virtio/vhost.c @@ -894,12 +894,15 @@ int vhost_device_iotlb_miss(struct vhost_dev *dev, uint64_t iova, int write) rcu_read_lock(); + trace_vhost_iotlb_miss(dev, 1); + iotlb = address_space_get_iotlb_entry(dev->vdev->dma_as, iova, write); if (iotlb.target_as != NULL) { ret = vhost_memory_region_lookup(dev, iotlb.translated_addr, &uaddr, &len); if (ret) { + trace_vhost_iotlb_miss(dev, 3); error_report("Fail to lookup the translated address " "%"PRIx64, iotlb.translated_addr); goto out; @@ -911,10 +914,14 @@ int vhost_device_iotlb_miss(struct vhost_dev *dev, uint64_t iova, int write) ret = vhost_backend_update_device_iotlb(dev, iova, uaddr, len, iotlb.perm); if (ret) { + trace_vhost_iotlb_miss(dev, 4); error_report("Fail to update device iotlb"); goto out; } } + + trace_vhost_iotlb_miss(dev, 2); + out: rcu_read_unlock(); |