[PATCH] D41723: Introduce the "retpoline" x86 mitigation technique for variant #2 of the speculative execution vulnerabilities disclosed today, specifically identified by CVE-2017-5715, "Branch Target Injection", and is one of the two halves to Spectre..

[Shawn Webb via Phabricator via llvm-commits]

lattera added a comment.

FYI: I've imported this patch into a feature branch in HardenedBSD's playground repo. All of HardenedBSD (world + kernel) is compiled with it. I've been running it on my laptop for the past couple days without a single issue. I've enabled it locally on my box for a few applications, notably Firefox and ioquake3. Both work without issue. I plan to start an experimental package build tomorrow with it applied to the entire ports tree (around 29,400 packages).


https://reviews.llvm.org/D41723