Messages in this thread | | | Date | Thu, 4 Jan 2018 22:46:44 +0100 (CET) | From | Thomas Gleixner <> | Subject | Re: [PATCH] x86/doc: add PTI description |
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On Thu, 4 Jan 2018, Dave Hansen wrote: > > - pti= [X86_64] > + pti= [X86_64] Disable Page Table Isolation of user and
That description is definitely wrong....
> + kernel address spaces. Disabling this feature > + removes hardening, but improves performance of > + system calls and interrupts. > + > Control user/kernel address space isolation: > on - enable > off - disable > auto - default setting > > + nopti [X86_64] > + Equivalent to pti=off > + > pty.legacy_count= > [KNL] Number of legacy pty's. Overwrites compiled-in > default number.
Thanks,
tglx
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