device_t dev_find_class (unsigned int class, device_t from);
device_t dev_find_slot (unsigned int bus, unsigned int devfn);
device_t dev_find_slot_on_smbus (unsigned int bus, unsigned int addr);
+device_t dev_find_lapic(unsigned apic_id);
+int dev_count_cpu(void);
/* Debug functions */
void print_resource_tree(struct device * root, int debug_level,