efi_memmap_install(9)

🌸 NAME 🌸

efi_memmap_install — Install a new EFI memory map in efi.memmap.

okay so this is the efi_memmap_install(9) page from the Kernel API Manual, bestie — welcome to the function that literally installs a new EFI memory map, no cap 💖

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✨ SYNOPSIS ✨

int efi_memmap_install (struct efi_memory_map_data *data );

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🎀 ARGUMENTS 🎀

• data — the efi memmap installation parameters. that's it, that's the whole argument, and it's giving "just hand over the params and let the function cook" 🫶

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💅 DESCRIPTION 💅

Unlike efi_memmap_init_*(), this function does not allow the caller to switch from early to late mappings. nope, not happening, no glow-up arc here 🙈

It simply uses the existing mapping function and installs the new memmap. lowkey straightforward, highkey important ✨

Returns zero on success, a negative error code on failure. so zero is the slay/success vibe, and a negative error code means it did not werk 💀

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🦋 SEE ALSO 🦋

Kernel file ./arch/x86/platform/efi/memmap.c, plus the besties efi_memmap_alloc(9), efi_memmap_split_count(9), and efi_memmap_insert(9) — go read them, iykyk 👑

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byeee bestie 🎀 this page’s source/version is ./arch/x86/platform/efi, dated October 2026, and it’s literally the efi_memmap_install(9) manual page. mwah 💋