diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c index 1550b1e26a..517e3cdc8d 100644 --- a/hw/virtio/vhost-vdpa.c +++ b/hw/virtio/vhost-vdpa.c @@ -1193,6 +1193,14 @@ static int vhost_vdpa_get_vring_base(struct vhost_dev *dev, return 0; } + if (!v->suspended) { + /* + * Cannot trust in value returned by device, let vhost recover used + * idx from guest. + */ + return -1; + } + ret = vhost_vdpa_call(dev, VHOST_GET_VRING_BASE, ring); trace_vhost_vdpa_get_vring_base(dev, ring->index, ring->num); return ret; diff --git a/include/hw/virtio/vhost-vdpa.h b/include/hw/virtio/vhost-vdpa.h index 7997f09a8d..4a7d396674 100644 --- a/include/hw/virtio/vhost-vdpa.h +++ b/include/hw/virtio/vhost-vdpa.h @@ -42,6 +42,8 @@ typedef struct vhost_vdpa { bool shadow_vqs_enabled; /* Vdpa must send shadow addresses as IOTLB key for data queues, not GPA */ bool shadow_data; + /* Device suspended successfully */ + bool suspended; /* IOVA mapping used by the Shadow Virtqueue */ VhostIOVATree *iova_tree; GPtrArray *shadow_vqs;