Post 9irMGEX5JSjVo6eNhQ by solarkraft@mastodon.social
 (DIR) More posts by solarkraft@mastodon.social
 (DIR) Post #9irMGEX5JSjVo6eNhQ by solarkraft@mastodon.social
       2019-05-14T18:32:57Z
       
       0 likes, 0 repeats
       
       Are Intel the only ones building pretty vulnerable chips or have ARM CPUs simply not been looked at hard enough?
       
 (DIR) Post #9irMGEkCWhE0Smmr8y by clacke@libranet.de
       2019-05-14T18:40:33Z
       
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       @solarkraft Intel has the oldest heritage and therefore the thorniest things to make fast, so they have the most complicated implementations.I'm not up to date on the latest thing, but certain ARM CPUs were affected by at least one of the previous speculative execution bugs.
       
 (DIR) Post #9lvVj0QFpFYg0QIFc0 by Jmtd@mastodon.cloud
       2019-08-14T12:49:02Z
       
       1 likes, 0 repeats
       
       @solarkraft there are known speculative execution vulns in several arm64 chips. Fairly sure raspberry pi 4 is one of them
       
 (DIR) Post #9lvWAdVScWYd2cu63E by clacke@libranet.de
       2019-08-16T00:20:08Z
       
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       @Jmtd @solarkraft Some people have brought up RISC-V in this context, and I would assume that the ARM instruction set isn't inherently more vulnerable than the RISC-V instruction set.As RISC-V implementations mature, designers will have to consider whether to keep simplicity and forego performance, or to add speculative execution and other potentially leaky methods, learn from and mitigate for the attacks already developed, and hope that new ones won't affect their designs.