On 11.01.2018 13:29, Olivier Galibert wrote: > Wasn't/Isn't the 4G/4G memory layout for 32 bits essentially KPTI?
4g/4g was never accepted upstream > > 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
