tlb_entry
itlb_size = sizeof(*bi_itlb) + sizeof(struct tlb_entry) * itlb_slot;
dtlb_size = sizeof(*bi_dtlb) + sizeof(struct tlb_entry) * dtlb_slot;
struct tlb_entry *dtlb_store = 0;
struct tlb_entry *itlb_store = 0;
struct tlb_entry tlb[1];
struct tlb_entry *kernel_tlbs;
extern struct tlb_entry *kernel_tlbs;