As more sensitive data is being processed in cloud computing environment, there is a concern about security issues. To solve this, many studies have been conducted to ensure the integrity of virtual machines(VMs) in cloud computing environment. However, in the case of the control flow integrity for the virtual machine, existing studies are not only necessary to modify the kernel code, but also cannot provide it efficiently. In this paper, we propose VM-CFI which efficiently protects the control flow integrity of VM kernel without modification of VM kernel in cloud computing environment.