pt_walk_range(9)

💅 pt_walk_range(9) 💅

okay bestie, welcome to the Kernel API Manual page for pt_walk_range(9) — it’s giving important kernel walker energy, and we’re gonna get through it together 💖

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🌸 NAME 🌸

pt_walk_range — Walk over a VA range

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🦋 SYNOPSIS 🦋

int pt_walk_range (struct pt_range *range , pt_level_fn_t fn , void *arg
);

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🎀 ARGUMENTS 🎀

• range — Range pointer 🫶
• fn — Walker function to call ✨
• arg — Value to pass to the function 💅

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✨ DESCRIPTION ✨

okay so, pt_walk_range walks over a VA range. no cap, that’s the whole vibe 🌈

The caller should have done a validity check — at least calling pt_check_range — when building range. lowkey important, bestie, don’t skip the vibe check 👑

The walk will start at the top most table. periodt 💜

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💜 SEE ALSO 💜

Kernel file ./drivers/iommu/generic_pt/pt_iter.h — and the whole related squad:

• pt_check_range(9)
• pt_index_to_va(9)
• pt_entry_fully_covered(9)
• pt_range_to_index(9)
• pt_range_to_end_index(9)
• pt_next_entry(9)
• for_each_pt_level_entry(9)
• pt_load_single_entry(9)
• pt_top_range(9)
• pt_all_range(9)
• pt_upper_range(9)
• pt_make_range(9)
• pt_init(9)
• pt_init_top(9)
• pt_descend(9)
• pt_range_slice(9)
• pt_top_memsize_lg2(9)
• pt_compute_best_pgsize(9)
• PT_MAKE_LEVELS(9)

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okay that’s the page, bestie! source/version: ./drivers/iommu/generic_pt · date: October 2026 · page: pt_walk_range(9) — bye, love u, go walk that range responsibly 💖✨