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Hi-Tech / Hardware

Architecture AMD Zen 2 includes hardware protection against Spectre V4

3DNews: Novosti Hardware 12.06.2019 at 20:55

3DNews: Novosti Hardware

In may of this year Microsoft and Google released information about the fourth vulnerability class Meltdown-Spectre — SBB (speculative store bypass, CVE-2018-3639 or Spectre V4). Following this, AMD has recognized the vulnerability of its chips this type of attack and advised to install the hotfix on operating system level. Now in the technical description of their new chips (flagship 16-core Ryzen 9 3950X was presented during E3 2019) AMD reported that microarchitecture Zen 2 is the hardware protection against Spectre V4 (however, some of the fixes at the OS level are still needed). Microarchitecture the current 14-nm-generation Zen and Zen+ involve the use of patches solely on the OS level. Also 2 Zen no longer requires protection from some of the options for Spectre on the level of the microcode, having a hardware security.