xen_hypervisor_callback 996 arch/x86/xen/setup.c if (register_callback(CALLBACKTYPE_event, xen_hypervisor_callback) || xen_hypervisor_callback 350 arch/x86/xen/smp_pv.c (unsigned long)xen_hypervisor_callback; xen_hypervisor_callback 11 arch/x86/xen/xen-ops.h extern const char xen_hypervisor_callback[];