From b0a62a84bd1c6ad5d4c11463371fcf267b56d902 Mon Sep 17 00:00:00 2001
From: libai <libai12@huawei.com>
Date: Mon, 4 Dec 2023 15:13:41 +0800
Subject: [PATCH] vhost: add vhost_dev_suspend/resume_op

Introduce new vhost interface to support vhost device suspend & resume

Signed-off-by: libai <libai12@huawei.com>
---
 include/hw/virtio/vhost-backend.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/hw/virtio/vhost-backend.h b/include/hw/virtio/vhost-backend.h
index 71b02e4a12..84b8fa1075 100644
--- a/include/hw/virtio/vhost-backend.h
+++ b/include/hw/virtio/vhost-backend.h
@@ -155,6 +155,9 @@ typedef int (*vhost_set_device_state_fd_op)(struct vhost_dev *dev,
                                             Error **errp);
 typedef int (*vhost_check_device_state_op)(struct vhost_dev *dev, Error **errp);
 
+typedef int (*vhost_dev_suspend_op)(struct vhost_dev *dev);
+typedef int (*vhost_dev_resume_op)(struct vhost_dev *dev);
+
 typedef struct VhostOps {
     VhostBackendType backend_type;
     vhost_backend_init vhost_backend_init;
@@ -208,6 +211,8 @@ typedef struct VhostOps {
     vhost_supports_device_state_op vhost_supports_device_state;
     vhost_set_device_state_fd_op vhost_set_device_state_fd;
     vhost_check_device_state_op vhost_check_device_state;
+    vhost_dev_suspend_op vhost_dev_suspend;
+    vhost_dev_resume_op vhost_dev_resume;
 } VhostOps;
 
 int vhost_backend_update_device_iotlb(struct vhost_dev *dev,
-- 
2.27.0