#ifndef __MMU_H#define __MMU_Htypedefstruct{structlist_headcrst_list;structlist_headpgtable_list;unsignedlongasce_bits;unsignedlongasce_limit;intnoexec;inthas_pgste;/* The mmu context has extended page tables */intalloc_pgste;/* cloned contexts will have extended page tables */}mm_context_t;#endif