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arm64: Enable SHA256 instruction in the kernel
Needs ReviewPublic

Authored by allanjude on Sun, Nov 21, 4:46 PM.

Details

Summary

This enables the existing support for ARM64 SHA2 instructions in
userland (used by libmd) to be used in the kernel and various modules
like: crypto, ipsec, geli, zfs

Sponsored by: Ampere Computing LLC
Sponsored by: Klara Inc.

Diff Detail

Repository
rS FreeBSD src repository - subversion
Lint
Lint OK
Unit
No Unit Test Coverage
Build Status
Buildable 42908
Build 39796: arc lint + arc unit

Event Timeline

Is this safe if the caller doesn't have a floating point context? It could trash userspace floating point registers.

sys/conf/files.arm64
146

We also need -DARM64_SHA2 on sha256c.c. It might be easiest to add via CFLAGS.sha256c.c+=... in Makefile.arm64 and the module Makefile.