Symbol: IRQ_SYSCALL
sys/x86/x86/local_apic.c
1948
if (irq == IRQ_FREE || irq == IRQ_SYSCALL)
sys/x86/x86/local_apic.c
746
lapics[apic_id].la_ioint_irqs[IDT_SYSCALL - APIC_IO_INTS] = IRQ_SYSCALL;