From: Thomas Gleixner <tglx@linutronix.de>
To: Dave Hansen <dave.hansen@linux.intel.com>
Cc: linux-kernel@vger.kernel.org, x86@kernel.org,
moritz.lipp@iaik.tugraz.at, daniel.gruss@iaik.tugraz.at,
michael.schwarz@iaik.tugraz.at,
richard.fellner@student.tugraz.at, luto@kernel.org,
torvalds@linux-foundation.org, keescook@google.com,
hughd@google.com
Subject: Re: [PATCH] x86/doc: add PTI description
Date: Thu, 4 Jan 2018 22:46:44 +0100 (CET) [thread overview]
Message-ID: <alpine.DEB.2.20.1801042245230.2127@nanos> (raw)
In-Reply-To: <20180104205458.6E55ED20@viggo.jf.intel.com>
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
next prev parent reply other threads:[~2018-01-04 21:46 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-04 20:54 Dave Hansen
2018-01-04 21:46 ` Thomas Gleixner [this message]
2018-01-05 0:06 ` Kees Cook
2018-01-05 0:21 ` Dave Hansen
-- strict thread matches above, loose matches on Subject: below --
2017-12-18 22:04 Dave Hansen
2017-12-19 0:09 ` Randy Dunlap
2017-12-19 1:13 ` Dave Hansen
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