Wasn't/Isn't the 4G/4G memory layout for 32 bits essentially KPTI? OG.
On Thu, Jan 11, 2018 at 12:32 AM, Pavel Machek <pa...@ucw.cz> wrote: > Hi! > >> The one thing I want to do now that Meltdown and Spectre are public, >> is to give a *big* shout-out to the x86 people, and Thomas Gleixner in >> particular for really being on top of this. It's been one huge >> annoyance, and honestly, Thomas really went over and beyond in this >> whole mess. A lot of other people have obviously been involved too, > > As I understand it: KPTI prevents Meltdown attack on x86-64, but > Spectre means even x86-64 is not expected to be safe? > > Ok, so Meltdown is public... And I still have some nice 32-bit > machines I'd like to keep working. > > Proof of concept is out, https://github.com/IAIK/meltdown/ . > > Is anyone working on KPTI for x86-32? SLES11 should still be > supported, and that should have x86-32 version; any chance SUSE can > share some patches? > > Thanks, > Pavel > -- > (english) http://www.livejournal.com/~pavelmachek > (cesky, pictures) > http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
