pt_has_system_page_size(9)

okay bestie, welcome to the pt_has_system_page_size(9) page from the Kernel API Manual 💖 it’s short, it’s cute, and it’s here to answer one very specific page-table question.

🌸 NAME 🌸

pt_has_system_page_size — True if level 0 can install a PAGE_SHIFT entry. periodt. ✨

🦋 SYNOPSIS 🦋

bool pt_has_system_page_size (const struct pt_common *common );

🎀 ARGUMENTS 🎀

• common — the page table to query 👀

💅 DESCRIPTION 💅

If this comes back true, the caller can use, at level 0, pt_install_leaf_entry(PAGE_SHIFT). Slay. This is useful for creating optimized paths for the common cases of PAGE_SIZE mappings. That’s literally the whole description, bestie — no extra lore, no secret side quest. 🫶

🌈 SEE ALSO 🌈

• Kernel file ./drivers/iommu/generic_pt/pt_common.h
• pt_attr_from_entry(9)
• pt_can_have_leaf(9)
• pt_can_have_table(9)
• pt_clear_entries(9)
• pt_entry_make_write_dirty(9)
• pt_entry_make_write_clean(9)
• pt_entry_is_write_dirty(9)
• pt_dirty_supported(9)
• pt_entry_num_contig_lg2(9)
• pt_entry_oa(9)
• pt_entry_oa_lg2sz(9)
• pt_entry_oa_exact(9)
• pt_full_va_prefix(9)
• pt_install_leaf_entry(9)
• pt_install_table(9)
• pt_item_oa(9)
• pt_load_entry_raw(9)
• pt_max_oa_lg2(9)
• pt_num_items_lg2(9)
• pt_pgsz_lg2_to_level(9)
• pt_possible_sizes(9)
• pt_table_item_lg2sz(9)
• pt_table_oa_lg2sz(9)
• pt_table_pa(9)
• pt_table_ptr(9)
• pt_max_sw_bit(9)
• pt_test_sw_bit_acquire(9)
• pt_set_sw_bit_release(9)
• pt_load_entry(9)

okay bye bestie, this page is signing off from ./drivers/iommu/generic_pt 💖 version/date October 2026 💖 and page pt_has_system_page_size(9) 🎀✨🫶