pt_all_range(9)

💅 pt_all_range(9) 💅

okay so bestie, welcome to the pt_all_range manpage from the Kernel API Manual — yes, the whole manual, we're doing this 🫶

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✨ NAME ✨

pt_all_range — returns a range that spans the entire page table, no cap 👑

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🌸 SYNOPSIS 🌸

struct pt_range pt_all_range (struct pt_common *common );

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🎀 ARGUMENTS 🎀

• common — the table. that's it. that's the whole argument. she's lowkey a one-parameter icon 💅

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🦋 DESCRIPTION 🦋

so the range you get back spans the whole page table — like, all of it, every last crumb, main character energy 🍓.

but bestie, listen to me, this part is important: because of how PT_FEAT_SIGN_EXTEND is supported, range->va and range->last_va will be incorrect during the iteration. as in, do not touch them. do not look at them. do not pass go. 🙈

fr fr, they "must not be accessed" — that's not a vibe suggestion, that's the rule. if you read them mid-iteration you're on your own 😭

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👑 SEE ALSO 👑

kernel file ./drivers/iommu/generic_pt/pt_iter.h — go read her, she knows things 💜

the whole squad, in order:

• 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_upper_range(9)
• pt_make_range(9)
• pt_init(9)
• pt_init_top(9)
• pt_descend(9)
• pt_walk_range(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 whole page, you ate that 💅✨ this came to you courtesy of ./drivers/iommu/generic_pt, dated October 2026 — mwah, stan, periodt 🎀💖