KVM: VMX: Continue emulating after batch exhausted

If we return early from an invalid guest state emulation loop, make
sure we return to it later if the guest state is still invalid.

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

arch/x86/kvm/vmx.c

@@ -5002,7 +5002,7 @@ static int handle_invalid_guest_state(struct kvm_vcpu *vcpu)
 			schedule();
 	}
 
-	vmx->emulation_required = 0;
+	vmx->emulation_required = !guest_state_valid(vcpu);
 out:
 	return ret;
 }