ptdesc_address(9)

✨ NAME ✨

okay so bestie, welcome to ptdesc_address(9) from the Kernel API Manual 💖 this page is all about ptdesc_address — virtual address of page table. it's giving “where exactly is this page table at?” energy, and we're gonna get into it 🫶

📜 SYNOPSIS 📜

void * ptdesc_address (const struct ptdesc *pt );

that signature is the whole vibe: it returns a void *, and it takes a const struct ptdesc * named pt 💅

🎀 ARGUMENTS 🎀

• pt — page table descriptor. that's the descriptor you're handing over, periodt ✨

🌸 RETURN 🌸

the first byte of the page table described by pt 💖 no cap, that's the return value — the first byte, and that's the whole thing 🎀

👑 SEE ALSO 👑

first up, the source file is the Kernel file ./include/linux/mm.h — iconic, honestly 🦋 and then here's the whole friend group, every single one, no skips 👀

• folio_page_idx(9)
• vma_flag_t(9)
• fault_flag_allow_retry_first(9)
• vma_kernel_pagesize(9)
• folio_order(9)
• folio_reset_order(9)
• folio_mapcount(9)
• folio_mapped(9)
• thp_order(9)
• thp_size(9)
• folio_get(9)
• folio_put(9)
• folio_put_refs(9)
• folios_put(9)
• vma_flags_is_cow_mapping(9)
• vma_is_cow_mapping(9)
• vma_desc_is_cow_mapping(9)
• folio_pfn(9)
• folio_mk_pte(9)
• folio_mk_pmd(9)
• folio_mk_pud(9)
• folio_maybe_dma_pinned(9)
• is_zero_page(9)
• is_zero_folio(9)
• folio_nr_pages(9)
• folio_next(9)
• folio_shift(9)
• folio_size(9)
• folio_maybe_mapped_shared(9)
• folio_expected_ref_count(9)
• zap_vma(9)
• ptdesc_set_kernel(9)
• ptdesc_clear_kernel(9)
• ptdesc_test_kernel(9)
• pagetable_alloc(9)
• pagetable_free(9)
• vma_lookup(9)
• vma_start_pgoff(9)
• vma_end_pgoff(9)
• vma_last_pgoff(9)
• vma_start_anon_pgoff(9)
• vma_end_anon_pgoff(9)
• vma_last_anon_pgoff(9)
• mmap_action_remap(9)
• mmap_action_remap_full(9)
• mmap_action_ioremap(9)
• mmap_action_ioremap_full(9)
• mmap_action_simple_ioremap(9)
• mmap_action_map_kernel_pages(9)
• mmap_action_map_kernel_pages_full(9)
• range_is_subset(9)
• range_in_vma(9)
• range_in_vma_desc(9)
• clear_pages(9)

byeee bestie 💖 this lil page is sourced from ./include/linux and dated October 2026 — mwah, go read the whole squad 🧚‍♀️🌈