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[PULL,v2,35/41] vhost: introduce new VhostOps vhost_vq_get_addr

Message ID 20200704182750.1088103-36-mst@redhat.com
State New
Headers show
Series virtio,acpi: features, fixes, cleanups. | expand

Commit Message

Michael S. Tsirkin July 4, 2020, 6:30 p.m. UTC 
From: Cindy Lu <lulu@redhat.com>

This patch introduces new VhostOps vhost_vq_get_addr_op callback to get
the vring addr from the backend

Signed-off-by: Cindy Lu <lulu@redhat.com>
Message-Id: <20200701145538.22333-9-lulu@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
---
 include/hw/virtio/vhost-backend.h | 6 ++++++
 1 file changed, 6 insertions(+)
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Patch

diff --git a/include/hw/virtio/vhost-backend.h b/include/hw/virtio/vhost-backend.h
index b80f344cd6..fa84abac97 100644
--- a/include/hw/virtio/vhost-backend.h
+++ b/include/hw/virtio/vhost-backend.h
@@ -34,6 +34,7 @@  struct vhost_vring_state;
 struct vhost_vring_addr;
 struct vhost_scsi_target;
 struct vhost_iotlb_msg;
+struct vhost_virtqueue;
 
 typedef int (*vhost_backend_init)(struct vhost_dev *dev, void *opaque);
 typedef int (*vhost_backend_cleanup)(struct vhost_dev *dev);
@@ -113,6 +114,10 @@  typedef int (*vhost_set_inflight_fd_op)(struct vhost_dev *dev,
                                         struct vhost_inflight *inflight);
 
 typedef int (*vhost_dev_start_op)(struct vhost_dev *dev, bool started);
+
+typedef int (*vhost_vq_get_addr_op)(struct vhost_dev *dev,
+                    struct vhost_vring_addr *addr,
+                    struct vhost_virtqueue *vq);
 typedef struct VhostOps {
     VhostBackendType backend_type;
     vhost_backend_init vhost_backend_init;
@@ -154,6 +159,7 @@  typedef struct VhostOps {
     vhost_get_inflight_fd_op vhost_get_inflight_fd;
     vhost_set_inflight_fd_op vhost_set_inflight_fd;
     vhost_dev_start_op vhost_dev_start;
+    vhost_vq_get_addr_op  vhost_vq_get_addr;
 } VhostOps;
 
 extern const VhostOps user_ops;