KVM: VMX: Fix reporting of unhandled EPT violations

Instead of returning -ENOTSUPP, exit normally but indicate the hardware
exit reason.

Signed-off-by: Avi Kivity <avi@redhat.com>

arch/x86/kvm/vmx.c

@@ -3153,8 +3153,8 @@ static int handle_ept_violation(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 		printk(KERN_ERR "EPT: Exit qualification is 0x%lx\n",
 			(long unsigned int)exit_qualification);
 		kvm_run->exit_reason = KVM_EXIT_UNKNOWN;
-		kvm_run->hw.hardware_exit_reason = 0;
-		return -ENOTSUPP;
+		kvm_run->hw.hardware_exit_reason = EXIT_REASON_EPT_VIOLATION;
+		return 0;
 	}
 
 	gpa = vmcs_read64(GUEST_PHYSICAL_ADDRESS);