BasicBlocker: ISA Redesign to Make Spectre-Immune CPUs Faster · HackerPapers discussions

BasicBlocker: ISA Redesign to Make Spectre-Immune CPUs Faster — HN submission

Wed, 26 Jul 2023 17:55:38 GMT

BasicBlocker: ISA Redesign to Make Spectre-Immune CPUs Faster (2021)

52 points; 32 discussion replies on HN. Paper and source history. A submission is not an endorsement.

BasicBlocker: ISA Redesign to Make Spectre-Immune CPUs Faster — mentioned by shiftingleft

Sun, 01 Jan 2023 00:06:08 GMT

Not much if you adjust the ISA for it! https://arxiv.org/abs/2007.15919 This paper adds (more or less) a really big branch delay slot to fill the cpu with work while it's waiting for the branch to resolve. Impossibility of Spectre-like attacks is a neat side-effect.

Paper and discussion history. A mention is not an endorsement.

BasicBlocker: ISA Redesign to Make Spectre-Immune CPUs Faster — HN submission

Thu, 10 Sep 2020 17:52:06 GMT

BasicBlocker: Redesigning ISAs to Eliminate Speculative-Execution Attacks

1 point; 0 discussion replies on HN. Paper and source history. A submission is not an endorsement.

BasicBlocker: ISA Redesign to Make Spectre-Immune CPUs Faster — mentioned by dependenttypes

Sat, 08 Aug 2020 10:58:09 GMT

DJB wrote a paper about how "Speculative execution is much less important for performance than commonly believed." https://arxiv.org/abs/2007.15919

Paper and discussion history. A mention is not an endorsement.

BasicBlocker: ISA Redesign to Make Spectre-Immune CPUs Faster — HN submission

Mon, 03 Aug 2020 20:01:37 GMT

BasicBlocker: Redesigning ISAs to Eliminate Speculative-Execution Attacks

4 points; 0 discussion replies on HN. Paper and source history. A submission is not an endorsement.