Re: [RFC PATCH v5 12/26] vhost: Route guest->host notification through shadow virtqueue

在 2021/10/30 上午2:35, Eugenio Pérez 写道:

+/**
+ * Enable or disable shadow virtqueue in a vhost vdpa device.
+ *
+ * This function is idempotent, to call it many times with the same value for
+ * enable_svq will simply return success.
+ *
+ * @v       Vhost vdpa device
+ * @enable  True to set SVQ mode
+ * @errp    Error pointer
+ */
+void vhost_vdpa_enable_svq(struct vhost_vdpa *v, bool enable, Error **errp)
+{

What happens if vhost_vpda is not stated when we try to enable svq? 
Another note is that, the vhost device could be stopped and started 
after svq is enabled/disabled. We need to deal with them.

Thanks

_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization