BOOKE_IRQPRIO_CRITICAL
sregs->u.e.ivor_low[0] = vcpu->arch.ivor[BOOKE_IRQPRIO_CRITICAL];
vcpu->arch.ivor[BOOKE_IRQPRIO_CRITICAL] = sregs->u.e.ivor_low[0];
case BOOKE_IRQPRIO_CRITICAL:
(1 << BOOKE_IRQPRIO_CRITICAL))
vcpu->arch.ivor[BOOKE_IRQPRIO_CRITICAL] = spr_val;
*spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_CRITICAL];
{BOOKE_IRQPRIO_CRITICAL, "CRITICAL"}, \