ARMV8CRYPTO(4)

📦 version 15.1, in freebsd 14.5, freebsd 15.1

🦋 ARMV8CRYPTO(4) — Kernel Interfaces Manual, but make it cute 🦋

Okay so this is ARMV8CRYPTO(4) from the Kernel Interfaces Manual, and it's all about the driver for the AES accelerator on ARM CPUs. Bestie, let's get into it 💅✨

✨ NAME ✨

armv8crypto — driver for the AES accelerator on ARM CPUs. That's it, that's the name — it's literally the ARM AES accelerator driver and it's ready for its main character moment 🫶.

🎀 SYNOPSIS 🎀

To compile this driver into the kernel, place the following lines in your kernel configuration file:

device crypto
device armv8crypto

Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

armv8crypto_load="YES"

💖 DESCRIPTION 💖

Starting with the ARMv8 architecture, ARM Limited added optional cryptography instructions to accelerate AES, SHA-1, SHA-2, and finite field arithmetic. It's giving hardware glow-up, no cap ✨🔥.

The processor capability is reported as AES in the Instruction Set Attributes 0 line at boot. The armv8crypto driver does not attach on systems that lack the required CPU capability — no capability, no attachment, no cap 💀.

The armv8crypto driver registers itself to accelerate AES operations for crypto(4). That's its whole main character job 👑💅.

🌈 SEE ALSO 🌈

🦋 HISTORY 🦋

The armv8crypto driver first appeared in FreeBSD 11.0. Periodt 🎀.

💜 AUTHORS 💜

The armv8crypto driver was written by Andrew Turner <andrew@FreeBSD.org>. Obsessed with that credit, fr fr 🫶.

Final footer vibe check: this page is from Debian, dated July 29, 2020, and it lives under the ARMV8CRYPTO(4) manual name. Mwah 💋 Bye bestie! 🫶✨

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