diff options
| author | Michael S. Tsirkin <mst@redhat.com> | 2012-12-20 14:28:58 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2013-01-07 19:42:22 +0200 |
| commit | 2d620f593d9395abd9aa453f8ae0861a51d674d8 (patch) | |
| tree | d3cab64b07a957ce4334b1a3ad5f1ba1a08c95d4 /hw/vhost.c | |
| parent | 8e4a424b305e29dc0e454f52df3b35577f342975 (diff) | |
virtio: don't waste irqfds on control vqs
Pass nvqs to set_guest_notifiers. This makes it possible to
save on irqfds by not allocating one for the control vq
for virtio-net.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/vhost.c')
| -rw-r--r-- | hw/vhost.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/hw/vhost.c b/hw/vhost.c index 4e1cb47418..b6d73ca05f 100644 --- a/hw/vhost.c +++ b/hw/vhost.c @@ -879,7 +879,9 @@ int vhost_dev_start(struct vhost_dev *hdev, VirtIODevice *vdev) goto fail; } - r = vdev->binding->set_guest_notifiers(vdev->binding_opaque, true); + r = vdev->binding->set_guest_notifiers(vdev->binding_opaque, + hdev->nvqs, + true); if (r < 0) { fprintf(stderr, "Error binding guest notifier: %d\n", -r); goto fail_notifiers; @@ -929,7 +931,7 @@ fail_vq: } fail_mem: fail_features: - vdev->binding->set_guest_notifiers(vdev->binding_opaque, false); + vdev->binding->set_guest_notifiers(vdev->binding_opaque, hdev->nvqs, false); fail_notifiers: fail: return r; @@ -950,7 +952,9 @@ void vhost_dev_stop(struct vhost_dev *hdev, VirtIODevice *vdev) vhost_sync_dirty_bitmap(hdev, &hdev->mem_sections[i], 0, (hwaddr)~0x0ull); } - r = vdev->binding->set_guest_notifiers(vdev->binding_opaque, false); + r = vdev->binding->set_guest_notifiers(vdev->binding_opaque, + hdev->nvqs, + false); if (r < 0) { fprintf(stderr, "vhost guest notifier cleanup failed: %d\n", r); fflush(stderr); |