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I assume "spectre-like" means "leaks info due to side effects of speculative execution". Arm (and any high performance chip really) relies on speculative execut
by krastanov 3y ago
I assume "spectre-like" means "leaks info due to side effects of speculative execution". Arm (and any high performance chip really) relies on speculative execution for performance, so I would be surprised if they are not susceptible to spectre-like attacks in principle. What am I missing?
- adrian_b 3y agoNothing. At least for now, the fastest ARM CPUs are not immune to Spectre, so the recent ARM cores have introduced a set of similar workarounds to the recent Intel and AMD CPUs, in order to serialize the execution and flush internal state around context changes. Searching for "Speculative Processor Vulnerability" on the Arm developer site will find many resources describing possible attacks and the mitigations that must be implemented for various Arm cores.