HYPERVISOR_physdev_op 549 arch/x86/xen/enlighten.c HYPERVISOR_physdev_op(PHYSDEVOP_set_iopl, &set_iopl); HYPERVISOR_physdev_op 173 arch/x86/xen/setup.c rc = HYPERVISOR_physdev_op(PHYSDEVOP_set_iopl, &set_iopl);