From 35f20bb76922420edce8196e6215b0ca49443378 Mon Sep 17 00:00:00 2001
From: Cindy Lu <lulu@redhat.com>
Date: Wed, 1 Jul 2020 22:55:32 +0800
Subject: [PATCH] vhost: introduce new VhostOps vhost_vq_get_addr
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(+)
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;