Intel BX80623I32100, Datasheet

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Technologies
40 Datasheet, Volume 1
3.5 Intel
®
Advanced Vector Extensions (Intel
®
AVX)
Intel Advanced Vector Extensions (Intel AVX) is the latest expansion of the Intel
instruction set. It extends the Intel Streaming SIMD Extensions (Intel SSE) from 128-
bit vectors into 256-bit vectors. Intel AVX addresses the continued need for vector
floating-point performance in mainstream scientific and engineering numerical
applications, visual processing, recognition, data-mining/synthesis, gaming, physics,
cryptography and other areas of applications. The enhancement in Intel AVX allows for
improved performance due to wider vectors, new extensible syntax, and rich
functionality including the ability to better manage, rearrange, and sort data. For more
information on Intel AVX, see
http://www.intel.com/software/avx
3.6 Intel
®
Advanced Encryption Standard New
Instructions (Intel
®
AES-NI)
The processor supports Advanced Encryption Standard New Instructions (Intel AES-NI)
that are a set of Single Instruction Multiple Data (SIMD) instructions that enable fast
and secure data encryption and decryption based on the Advanced Encryption Standard
(AES). Intel AES-NI are valuable for a wide range of cryptographic applications; such
as, applications that perform bulk encryption/decryption, authentication, random
number generation, and authenticated encryption. AES is broadly accepted as the
standard for both government and industry applications, and is widely deployed in
various protocols.
Intel AES-NI consists of six Intel SSE instructions. Four instructions, AESENC,
AESENCLAST, AESDEC, and AESDELAST facilitate high performance AES encryption and
decryption. The other two, AESIMC and AESKEYGENASSIST, support the AES key
expansion procedure. Together, these instructions provide a full hardware for
supporting AES, offering security, high performance, and a great deal of flexibility.
3.6.1 PCLMULQDQ Instruction
The processor supports the carry-less multiplication instruction, PCLMULQDQ.
PCLMULQDQ is a Single Instruction Multiple Data (SIMD) instruction that computes the
128-bit carry-less multiplication of two, 64-bit operands without generating and
propagating carries. Carry-less multiplication is an essential processing component of
several cryptographic systems and standards. Hence, accelerating carry-less
multiplication can significantly contribute to achieving high speed secure computing
and communication.
3.7 Intel
®
64 Architecture x2APIC
The x2APIC architecture extends the xAPIC architecture that provides a key mechanism
for interrupt delivery. This extension is intended primarily to increase processor
addressability.
Specifically, x2APIC:
• Retains all key elements of compatibility to the xAPIC architecture
— delivery modes
— interrupt and processor priorities
— interrupt sources
— interrupt destination types