It appears the retpoline fixes don't work in Skylake or later (it's smart enough to speculate out of it?) and will require new support for IBRS/IBPB in the microcode to mitigate. From: https://lkml.org/lkml/2018/1/4/615
Just as a FYI, according to: * https://lkml.org/lkml/2018/1/4/432 * http://xenbits.xen.org/gitweb/?p=people/andrewcoop/xen.git;a... It appears that Skylake and later can actually predict retpolines? Some hardware…
No, I think overnight was at 400 miles. The Milford Supercharge was at roughly 322 miles according to the graph. Broder says he traveled 79 miles before spending the night at Groton, so that's at roughly 400 miles.
It appears the retpoline fixes don't work in Skylake or later (it's smart enough to speculate out of it?) and will require new support for IBRS/IBPB in the microcode to mitigate. From: https://lkml.org/lkml/2018/1/4/615
Just as a FYI, according to: * https://lkml.org/lkml/2018/1/4/432 * http://xenbits.xen.org/gitweb/?p=people/andrewcoop/xen.git;a... It appears that Skylake and later can actually predict retpolines? Some hardware…
No, I think overnight was at 400 miles. The Milford Supercharge was at roughly 322 miles according to the graph. Broder says he traveled 79 miles before spending the night at Groton, so that's at roughly 400 miles.