LAPIC_MODE_DISABLED
if (old_mode == LAPIC_MODE_DISABLED && new_mode == LAPIC_MODE_X2APIC)
case LAPIC_MODE_DISABLED:
(kvm_get_apic_mode(vcpu) != LAPIC_MODE_DISABLED);
(kvm_get_apic_mode(vcpu) != LAPIC_MODE_DISABLED));