pt_table_item_lg2sz(9)

💅 pt_table_item_lg2sz — bestie, it's the size of ONE item entry at this table level

okay so real talk, this page is pt_table_item_lg2sz(9) from the Kernel API Manual, and it's lowkey one of the shorter ones but it still ate. let's get into it 🎀

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✨ SYNOPSIS ✨

unsigned int pt_table_item_lg2sz (const struct pt_state *pts );

like, that's the whole vibe. one function, one argument, returns an unsigned int. clean. minimal. iconic. 👑

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🌸 ARGUMENTS 🌸

• pts — The current level. that's it, that's the argument, she just wants to know what level we're at bestie 🦋

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💖 DESCRIPTION 💖

so the size of the item — that's the number this whole function is about — specifies how much VA and how much OA a single item occupies. yes, both. VA and OA. one item, that much space, periodt. ✨

not me telling you to also go read pt_entry_oa_lg2sz — because it gives you the same value except it includes the effect of contiguous entries. so like, same energy, extra spice. iykyk 💅

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🫶 SEE ALSO 🫶

okay this list is LONG, she's popular, she knows everybody. stay with me:

Kernel file ./drivers/iommu/generic_pt/pt_common.h and also: 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_has_system_page_size(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_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) 🌈

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aaaand that's the tea 🍓 this little cutie lives in ./drivers/iommu/generic_pt and the page itself is dated October 2026 — so yeah, mark your calendars bestie, she's from the future and she's thriving 💜🧚