apix_get_ipivect
apix_get_ipivect,
apic_pir_vect = apix_get_ipivect(XC_CPUPOKE_PIL, -1);
apic_cpcovf_vect = apix_get_ipivect(ipl, -1);
apic_errvect = apix_get_ipivect(ipl, -1);
apic_cmci_vect = apix_get_ipivect(ipl, -1);
static int apix_get_ipivect(int, int);
if ((vector = apix_get_ipivect(ipl, -1)) == -1)