X86_PG_NC_PWT
#define _PAGE_PWT X86_PG_NC_PWT
pat_pte_index[PAT_WRITE_THROUGH]= 0 | X86_PG_NC_PWT;
pat_pte_index[PAT_UNCACHEABLE] = X86_PG_NC_PCD | X86_PG_NC_PWT;
pat_pte_index[PAT_WRITE_PROTECTED] = X86_PG_PTE_PAT | X86_PG_NC_PWT;
pmap->pmap_cache_mask_pte = X86_PG_NC_PWT | X86_PG_NC_PCD | X86_PG_PTE_PAT;
pmap->pmap_cache_mask_pde = X86_PG_NC_PWT | X86_PG_NC_PCD | X86_PG_PDE_PAT;
[PG_N_IDX] = X86_PG_NC_PWT | X86_PG_NC_PCD,