extern void find_initrd (void);
extern int filter_rsvd_memory (unsigned long start, unsigned long end, void *arg);
extern void efi_memmap_init(unsigned long *, unsigned long *);
+extern int find_max_min_low_pfn (unsigned long , unsigned long, void *);
extern unsigned long vmcore_find_descriptor_size(unsigned long address);
extern int reserve_elfcorehdr(unsigned long *start, unsigned long *end);