To check that the processor is supported and Linux detected the AES-NI, type:
# grep -m1 -o aes /proc/cpuinfo
No outputs means your CPU is without the AES-NI instruction set.
More on your cpu
To find out and display information about the CPU architecture, enter:
# less /proc/cpuinfo
Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 4 On-line CPU(s) list: 0-3 Thread(s) per core: 2 Core(s) per socket: 2 Socket(s): 1 NUMA node(s): 1 Vendor ID: GenuineIntel CPU family: 6 Model: 28 Model name: Intel(R) Atom(TM) CPU D510 @ 1.66GHz Stepping: 10 CPU MHz: 1662.576 BogoMIPS: 3325.15 L1d cache: 24K L1i cache: 32K L2 cache: 512K NUMA node0 CPU(s): 0-3