On Thu, Apr 23, 2015 at 9:06 AM, Brian Gerst <brge...@gmail.com> wrote:
>
> So you are saying we should save and conditionally restore the
> kernel's %ss during context switch? That shouldn't be too bad. Half
> of the time you would be loading the null selector which is fast (no
> GDT access, no validation).
I'd almost prefer something along those lines, yes. Who knows *what*
leaks? If the present bit state leaks, then likely so does the limit
value etc etc..
Linus
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