How can I allow all users to access only a certain type of entityform?
In filter. Just add.


  content: type => is one of (put check mark on all those content types
  you want. )


And then add permission for that view. 

The another way is. 


Go to permission section under people admin menu. 
Navigate to node section.
You will find your content type name with VIEW,EDIT,DELETE permission
with each users.
Just put check mark for the user you want to them able too see.


Hope this will work.