在 2022/7/18 19:17, Kangjie Xu 写道:
Introduce vhost_virtqueue_unmap() to ummap the vrings and desc
of a virtqueue.
The function will be used later.
Signed-off-by: Kangjie Xu <kangjie...@linux.alibaba.com>
Signed-off-by: Xuan Zhuo <xuanz...@linux.alibaba.com>
Acked-by: Jason Wang <jasow...@redhat.com>
---
hw/virtio/vhost.c | 20 ++++++++++++++------
1 file changed, 14 insertions(+), 6 deletions(-)
diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c
index 0827d631c0..e467dfc7bc 100644
--- a/hw/virtio/vhost.c
+++ b/hw/virtio/vhost.c
@@ -1197,6 +1197,19 @@ fail_alloc_desc:
return r;
}
+static void vhost_virtqueue_unmap(struct vhost_dev *dev,
+ struct VirtIODevice *vdev,
+ struct vhost_virtqueue *vq,
+ unsigned idx)
+{
+ vhost_memory_unmap(dev, vq->used, virtio_queue_get_used_size(vdev, idx),
+ 1, virtio_queue_get_used_size(vdev, idx));
+ vhost_memory_unmap(dev, vq->avail, virtio_queue_get_avail_size(vdev, idx),
+ 0, virtio_queue_get_avail_size(vdev, idx));
+ vhost_memory_unmap(dev, vq->desc, virtio_queue_get_desc_size(vdev, idx),
+ 0, virtio_queue_get_desc_size(vdev, idx));
+}
+
static void vhost_virtqueue_stop(struct vhost_dev *dev,
struct VirtIODevice *vdev,
struct vhost_virtqueue *vq,
@@ -1235,12 +1248,7 @@ static void vhost_virtqueue_stop(struct vhost_dev *dev,
vhost_vq_index);
}
- vhost_memory_unmap(dev, vq->used, virtio_queue_get_used_size(vdev, idx),
- 1, virtio_queue_get_used_size(vdev, idx));
- vhost_memory_unmap(dev, vq->avail, virtio_queue_get_avail_size(vdev, idx),
- 0, virtio_queue_get_avail_size(vdev, idx));
- vhost_memory_unmap(dev, vq->desc, virtio_queue_get_desc_size(vdev, idx),
- 0, virtio_queue_get_desc_size(vdev, idx));
+ vhost_virtqueue_unmap(dev, vdev, vq, idx);
}
static void vhost_eventfd_add(MemoryListener *listener,
