From 0e8cd86ad1cc2c67fb3bd31493b534d740c9ac28 Mon Sep 17 00:00:00 2001
From: Cindy Lu <lulu@redhat.com>
Date: Thu, 22 Dec 2022 15:04:45 +0800
Subject: [PATCH] vhost: introduce new VhostOps vhost_set_config_call

This patch introduces new VhostOps vhost_set_config_call.
This function allows the qemu to set the config
event fd to kernel driver.

Signed-off-by: Cindy Lu <lulu@redhat.com>
Message-Id: <20221222070451.936503-5-lulu@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 include/hw/virtio/vhost-backend.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/hw/virtio/vhost-backend.h b/include/hw/virtio/vhost-backend.h
index a64708f456..bd1c7dfe4f 100644
--- a/include/hw/virtio/vhost-backend.h
+++ b/include/hw/virtio/vhost-backend.h
@@ -125,6 +125,8 @@ typedef int (*vhost_vq_get_addr_op)(struct vhost_dev *dev,
 typedef int (*vhost_get_device_id_op)(struct vhost_dev *dev, uint32_t *dev_id);
 
 typedef bool (*vhost_force_iommu_op)(struct vhost_dev *dev);
+typedef int (*vhost_set_config_call_op)(struct vhost_dev *dev,
+                                       int fd);
 typedef void (*vhost_set_used_memslots_op)(struct vhost_dev *dev);
 typedef unsigned int (*vhost_get_used_memslots_op)(void);
 
@@ -173,6 +175,7 @@ typedef struct VhostOps {
     vhost_vq_get_addr_op  vhost_vq_get_addr;
     vhost_get_device_id_op vhost_get_device_id;
     vhost_force_iommu_op vhost_force_iommu;
+    vhost_set_config_call_op vhost_set_config_call;
     vhost_set_used_memslots_op vhost_set_used_memslots;
     vhost_get_used_memslots_op vhost_get_used_memslots;
 } VhostOps;
-- 
2.27.0