armv8 SHA-256 using ARMv8 Crypto Extensions
This patch adds support for the SHA-256 Secure Hash Algorithm for CPUs
that have support for the SHA-256 part of the ARM v8 Crypto Extensions.
It greatly improves sha-256 based operations, about 17x faster on iMX8M
evk board. ~12ms vs ~208ms for a 20MiB kernel sha-256 verification.
asm implementation is a simplified version of the Linux version (from
Ard Biesheuvel).
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
diff --git a/arch/arm/cpu/armv8/Makefile b/arch/arm/cpu/armv8/Makefile
index ff2495c..2e4bf9e 100644
--- a/arch/arm/cpu/armv8/Makefile
+++ b/arch/arm/cpu/armv8/Makefile
@@ -45,3 +45,4 @@
obj-$(CONFIG_TARGET_BCMNS3) += bcmns3/
obj-$(CONFIG_XEN) += xen/
obj-$(CONFIG_ARMV8_CE_SHA1) += sha1_ce_glue.o sha1_ce_core.o
+obj-$(CONFIG_ARMV8_CE_SHA256) += sha256_ce_glue.o sha256_ce_core.o