ATTR_SH_IS
pt_entry_t pmap_sh_attr __read_mostly = ATTR_SH(ATTR_SH_IS);
new_l3 = (pt_entry_t)(pa | ATTR_SH(ATTR_SH_IS) | IOMMU_L3_BLOCK);
new_l3 = (pt_entry_t)(pa | ATTR_AF | ATTR_SH(ATTR_SH_IS) |
l3e = ATTR_AF | ATTR_SH(ATTR_SH_IS) | L3_PAGE;