PAT_UNCACHED
pmap_change_attr(addr, numpages, PAT_UNCACHED);
num_pages, PAT_UNCACHED);
PAT_VALUE(2, PAT_UNCACHED) | /* 010 */
PAT_VALUE(6, PAT_UNCACHED) | /* 110 */
pat_pte_index[PAT_UNCACHED] = X86_PG_NC_PCD;
[PAT_UNCACHED] = EPT_PG_IGNORE_PAT | EPT_MEM_TYPE_UC,
#define VM_MEMATTR_WEAK_UNCACHEABLE ((vm_memattr_t)PAT_UNCACHED)