https://pc.watch.impress.co.jp/docs/news/1114037.html
http://www.cs.ucr.edu/~nael/pubs/asplos18.pdf
Mitigating BranchScope:
Software-only solutions can be highly sensitive to the under-
lying organization of the branch predictor unit.
(中略)
The design of the branch predictor mechanism can be rearchitected to mitigate leakage through the directional branch
predictor unit. In this section, we overview several possible such mitigations. Exploring effective mitigations is an
interesting direction for future research.
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