On Mon, 22 Jan 2018 09:56:25 +0100 Joerg Roedel <j...@8bytes.org> wrote:
> Hey Nadav, > > On Sun, Jan 21, 2018 at 03:46:24PM -0800, Nadav Amit wrote: > > It does seem that segmentation provides sufficient protection from > > Meltdown. > > Thanks for testing this, if this turns out to be true for all affected > uarchs it would be a great and better way of protection than enabling > PTI. > > But I'd like an official statement from Intel on that one, as their > recommended fix is still to use PTI. > > And as you said, if it turns out that this works only on some Intel > uarchs, we can also detect it at runtime and then chose the fasted > meltdown protection mechanism. I'll follow this up and get an official statement. Alan
