> The lack of speculation in the ARM1176, Cortex-A7, and Cortex-A53 cores used in Raspberry Pi render us immune to attacks of the sort.
I didn't check, but these will almost certainly have branch prediction. What they probably lack is a predictor advanced enough to speculate on indirect branches, which AIUI is the primary vector of Spectre.
I didn't check, but these will almost certainly have branch prediction. What they probably lack is a predictor advanced enough to speculate on indirect branches, which AIUI is the primary vector of Spectre.