Symbol: ioapic_read
usr/src/uts/i86pc/io/pcplusmp/apic_common.c
1622
ioapic_read(int ioapic_ix, uint32_t reg)
usr/src/uts/i86xpv/io/psm/xpv_psm.c
1514
ioapic_read(int apic_ix, uint32_t reg)