vhost-user: fix ioeventfd_enabled

Currently, the vhost-user-test assumes the eventfd is available. However it's not true because the accel is qtest. So the 'vhost_set_vring_file' will not add fds to the msg and the server side of vhost-user-test will be broken. The bug is in 'ioeventfd_enabled'. We should make this function return true if not using kvm accel. Signed-off-by: Li Qiang <[email protected]> Reviewed-by: Michael S. Tsirkin <[email protected]> Signed-off-by: Michael S. Tsirkin <[email protected]>
panda-re · Nov 20, 2023 · 1165bcc · 1165bcc
1 parent c7554f0
commit 1165bcc
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/hw/virtio/vhost-user.c b/hw/virtio/vhost-user.c
@@ -175,7 +175,7 @@ struct vhost_user {
 
 static bool ioeventfd_enabled(void)
 {
-    return kvm_enabled() && kvm_eventfds_enabled();
+    return !kvm_enabled() || kvm_eventfds_enabled();
 }
 
 static int vhost_user_read(struct vhost_dev *dev, VhostUserMsg *msg)