Linus Torvalds writes: (Summary) On Fri, Jan 26, 2018 at 1:11 AM, David Woodhouse <dwmw2@infradead.org> wrote:
Absolutely. SMEP helps make people a lot less worried about things, but it doesn't fix the "BTB only contains partial addresses" case. but it doesn't fix the "BTB only contains partial addresses" case. In my tree, it's only conditional on X86_FEATURE_RETPOLINE. my tree, it's only conditional on X86_FEATURE_RETPOLINE. Linus
Linus
Linus
[...]
stuffing for SMEP?Absolutely. SMEP helps make people a lot less worried about things, but it doesn't fix the "BTB only contains partial addresses" case. but it doesn't fix the "BTB only contains partial addresses" case. In my tree, it's only conditional on X86_FEATURE_RETPOLINE. my tree, it's only conditional on X86_FEATURE_RETPOLINE. Linus
Linus
Linus