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[RFC 03/10] virtio: Add virtio_queue_get_idx
From: |
Eugenio Pérez |
Subject: |
[RFC 03/10] virtio: Add virtio_queue_get_idx |
Date: |
Fri, 29 Jan 2021 21:54:08 +0100 |
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
---
include/hw/virtio/virtio.h | 2 ++
hw/virtio/virtio.c | 5 +++++
2 files changed, 7 insertions(+)
diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
index 9988c6d5c9..9013c03424 100644
--- a/include/hw/virtio/virtio.h
+++ b/include/hw/virtio/virtio.h
@@ -399,6 +399,8 @@ static inline bool virtio_device_disabled(VirtIODevice
*vdev)
return unlikely(vdev->disabled || vdev->broken);
}
+unsigned virtio_queue_get_idx(const VirtIODevice *vdev, const VirtQueue *vq);
+
bool virtio_legacy_allowed(VirtIODevice *vdev);
bool virtio_legacy_check_disabled(VirtIODevice *vdev);
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index ebb780fb42..3d14b0ef74 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -500,6 +500,11 @@ void virtio_queue_set_notification(VirtQueue *vq, int
enable)
}
}
+unsigned virtio_queue_get_idx(const VirtIODevice *vdev, const VirtQueue *vq)
+{
+ return vq - vdev->vq;
+}
+
int virtio_queue_ready(VirtQueue *vq)
{
return vq->vring.avail != 0;
--
2.27.0
- [RFC 00/10] vDPA shadow virtqueue - notifications forwarding, Eugenio Pérez, 2021/01/29
- [RFC 01/10] virtio: Add virtqueue_set_handler, Eugenio Pérez, 2021/01/29
- [RFC 02/10] virtio: Add set_vq_handler, Eugenio Pérez, 2021/01/29
- [RFC 03/10] virtio: Add virtio_queue_get_idx,
Eugenio Pérez <=
- [RFC 04/10] virtio: Add virtio_queue_host_notifier_status, Eugenio Pérez, 2021/01/29
- [RFC 05/10] vhost: Add vhost_dev_from_virtio, Eugenio Pérez, 2021/01/29
- [RFC 07/10] vhost: Add VhostShadowVirtqueue, Eugenio Pérez, 2021/01/29
- [RFC 06/10] vhost: Save masked_notifier state, Eugenio Pérez, 2021/01/29
- [RFC 08/10] vhost: Add x-vhost-enable-shadow-vq qmp, Eugenio Pérez, 2021/01/29
- [RFC 10/10] vhost: Route host->guest notification through shadow virtqueue, Eugenio Pérez, 2021/01/29
- [RFC 09/10] vhost: Route guest->host notification through shadow virtqueue, Eugenio Pérez, 2021/01/29