ppc cpu_interrupt_exittb kvm check is inverted

See https://gitlab.com/qemu-project/qemu/-/blame/master/target/ppc/helper_regs.c#L204:

void cpu_interrupt_exittb(CPUState *cs)
{
    if (!kvm_enabled()) {
        return;
    }

    if (!qemu_mutex_iothread_locked()) {
        qemu_mutex_lock_iothread();
        cpu_interrupt(cs, CPU_INTERRUPT_EXITTB);
        qemu_mutex_unlock_iothread();
    } else {
        cpu_interrupt(cs, CPU_INTERRUPT_EXITTB);
    }
}

It seems to me that it should only return if kvm is enabled?