Rich Felker Retweeted Siddhesh Poyarekar
Key observation regarding fixing Spectre.https://twitter.com/siddhesh_p/status/957311462141079552 …
Rich Felker added,
Siddhesh Poyarekar @siddhesh_p
Replying to @curious_corn @WatsonLadd and 2 others
Flushing is pointless because the speculative load will invalidate the attackers cache line anyway, letting her know which line was loaded.
We need a hidden cache that can somehow be made 'visible' when a speculated branch is taken. ARM spec allows hidden cache levels for e.g.
10:20 AM - 27 Jan 2018
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