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Message-ID: <bd1d6468-dfe1-8fbc-521b-4fd2e418a3ef@linux.intel.com>
Date: Thu, 5 Jan 2017 10:58:00 -0800
From: Arjan van de Ven <arjan@...ux.intel.com>
To: Thomas Garnier <thgarnie@...gle.com>,
Andy Lutomirski <luto@...capital.net>
Cc: Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>,
"H . Peter Anvin" <hpa@...or.com>, Kees Cook <keescook@...omium.org>,
Borislav Petkov <bp@...en8.de>, Andy Lutomirski <luto@...nel.org>,
Dave Hansen <dave@...1.net>, Chen Yucong <slaoub@...il.com>,
Paul Gortmaker <paul.gortmaker@...driver.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Masahiro Yamada <yamada.masahiro@...ionext.com>,
Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
Anna-Maria Gleixner <anna-maria@...utronix.de>,
Boris Ostrovsky <boris.ostrovsky@...cle.com>,
Rasmus Villemoes <linux@...musvillemoes.dk>,
Michael Ellerman <mpe@...erman.id.au>, Juergen Gross <jgross@...e.com>,
Richard Weinberger <richard@....at>, X86 ML <x86@...nel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"kernel-hardening@...ts.openwall.com" <kernel-hardening@...ts.openwall.com>
Subject: Re: [RFC] x86/mm/KASLR: Remap GDTs at fixed location
On 1/5/2017 9:54 AM, Thomas Garnier wrote:
>
> That's my goal too. I started by doing a RO remap and got couple
> problems with hibernation. I can try again for the next iteration or
> delay it for another patch. I also need to look at KVM GDT usage, I am
> not familiar with it yet.
don't we write to the GDT as part of the TLS segment stuff for glibc ?
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