sched_op 286 arch/x86/include/asm/xen/hypercall.h return _hypercall2(int, sched_op, cmd, arg); sched_op 416 arch/x86/include/asm/xen/hypercall.h return _hypercall3(int, sched_op, SCHEDOP_shutdown, &r, start_info_mfn); sched_op 84 tools/lib/traceevent/plugins/plugin_xen.c N(sched_op),