KVM: VMX: enable invlpg exiting if EPT is disabled

Manually disabling EPT via module option fails to re-enable INVLPG
exiting.
Reported-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

arch/x86/kvm/vmx.c

@@ -2118,7 +2118,8 @@ static int vmx_vcpu_setup(struct vcpu_vmx *vmx)
 	}
 	if (!vm_need_ept())
 		exec_control |= CPU_BASED_CR3_STORE_EXITING |
-				CPU_BASED_CR3_LOAD_EXITING;
+				CPU_BASED_CR3_LOAD_EXITING  |
+				CPU_BASED_INVLPG_EXITING;
 	vmcs_write32(CPU_BASED_VM_EXEC_CONTROL, exec_control);
 
 	if (cpu_has_secondary_exec_ctrls()) {