void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *pteptr, pte_t pteval) { pmd_t *pmdp = (pmd_t *) pteptr; pte_t shadow_pteval = pteval; unsigned long mask; if (!MACHINE_HAS_HPAGE) { pteptr = (pte_t *) pte_page(pteval)[1].index; mask = pte_val(pteval) & (_SEGMENT_ENTRY_INV | _SEGMENT_ENTRY_RO); pte_val(pteval) = (_SEGMENT_ENTRY + __pa(pteptr)) | mask; if (mm->context.noexec) { pteptr += PTRS_PER_PTE; pte_val(shadow_pteval) = (_SEGMENT_ENTRY + __pa(pteptr)) | mask; } } pmd_val(*pmdp) = pte_val(pteval); if (mm->context.noexec) { pmdp = get_shadow_table(pmdp); pmd_val(*pmdp) = pte_val(shadow_pteval); } }
void crst_table_free(unsigned long *table) { unsigned long *shadow = get_shadow_table(table); if (shadow) free_pages((unsigned long) shadow, ALLOC_ORDER); free_pages((unsigned long) table, ALLOC_ORDER); }
void crst_table_free(struct mm_struct *mm, unsigned long *table) { unsigned long *shadow = get_shadow_table(table); struct page *page = virt_to_page(table); spin_lock(&mm->page_table_lock); list_del(&page->lru); spin_unlock(&mm->page_table_lock); if (shadow) free_pages((unsigned long) shadow, ALLOC_ORDER); free_pages((unsigned long) table, ALLOC_ORDER); }