[PATCH 1/4] vhost: add data structure of virtio indirect descriptors in SVQ

[Wafer Xie]

Store the virtio indirect descriptor in the SVQDescState structure

Signed-off-by: Wafer Xie <wa...@jaguarmicro.com>
---
 hw/virtio/vhost-shadow-virtqueue.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/hw/virtio/vhost-shadow-virtqueue.h 
b/hw/virtio/vhost-shadow-virtqueue.h
index 9c273739d6..2b36df4dd5 100644
--- a/hw/virtio/vhost-shadow-virtqueue.h
+++ b/hw/virtio/vhost-shadow-virtqueue.h
@@ -23,6 +23,14 @@ typedef struct SVQDescState {
      * guest's
      */
     unsigned int ndescs;
+
+    /*
+     * Indirect descriptor table for this descriptor chain.
+     * NULL if not using indirect descriptors.
+     */
+    vring_desc_t *indirect_desc;
+    hwaddr indirect_iova;
+    size_t indirect_size;
 } SVQDescState;
 
 typedef struct VhostShadowVirtqueue VhostShadowVirtqueue;
-- 
2.34.1