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SubjectRe: Linux 4.15-rc7
Wasn't/Isn't the 4G/4G  memory layout for 32 bits essentially KPTI?


On Thu, Jan 11, 2018 at 12:32 AM, Pavel Machek <> 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, .
> 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)
> (cesky, pictures)

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