是否可以从struct页面找到对应的task_struct ?

Is there a method of finding the corresponding struct task_struct by given struct page? What i want to do is that i want to know which KVM virtual machine is using the given page in virtualization environment. And task_struct is added a new data member (i.e. vm_id) so that i can get the vm id once i get the task_struct by the given struc page. There seems to be no a direct solution. But i have no idea about it.Is there a method of finding the corresponding