4

According to Wikipedia, every Armv8 processor should support sha256 hashing instructions however /proc/cpuinfo doesn't list it. Could there be a failure to identify the feature by the kernel?

processor   : 3
BogoMIPS    : 108.00
Features    : fp asimd evtstrm crc32 cpuid
CPU implementer : 0x41
CPU architecture: 8
CPU variant : 0x0
CPU part    : 0xd08
CPU revision    : 3
erolll
  • 41
  • 2

1 Answers1

0

The answer is, the reason why /proc/cpuinfo doesn't show sha256 support is that ARM Holdings would require a large fee to permit Rpi foundation to include those instructions in the CPU. They didn't pay for them.

erolll
  • 41
  • 2