HPTE_USE_KERNEL_KEY
if ((pte_pkey == 0) && (flags & HPTE_USE_KERNEL_KEY))
rflags |= pte_to_hpte_pkey_bits(0, HPTE_USE_KERNEL_KEY);
pp = htab_convert_pte_flags(pgprot_val(PAGE_KERNEL_ROX), HPTE_USE_KERNEL_KEY);
pp = htab_convert_pte_flags(pgprot_val(PAGE_KERNEL), HPTE_USE_KERNEL_KEY);
flags |= HPTE_USE_KERNEL_KEY;
flags |= HPTE_USE_KERNEL_KEY;
unsigned long mode = htab_convert_pte_flags(pgprot_val(PAGE_KERNEL), HPTE_USE_KERNEL_KEY);
prot = htab_convert_pte_flags(prot, HPTE_USE_KERNEL_KEY);