Date: Mon, 22 Apr 2013 10:04:19 +0200
From: Ingo Molnar <mingo@kernel.org>
To: Kees Cook <keescook@chromium.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>, LKML <linux-kernel@vger.kernel.org>,
        "x86@kernel.org" <x86@kernel.org>,
        "kernel-hardening@lists.openwall.com" 
	<kernel-hardening@lists.openwall.com>,
        Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>,
        David Woodhouse <David.Woodhouse@intel.com>,
        Jiri Kosina <jkosina@suse.cz>, Olaf Hering <olaf@aepfle.de>,
        Yinghai Lu <yinghai@kernel.org>, Matt Fleming <matt.fleming@intel.com>,
        Gokul Caushik <caushik1@gmail.com>,
        Josh Triplett <josh@joshtriplett.org>,
        Joe Millenbach <jmillenbach@gmail.com>,
        Alexander Duyck <alexander.h.duyck@intel.com>,
        Jacob Shin <jacob.shin@amd.com>, Pekka Enberg <penberg@kernel.org>,
        Eric Northup <digitaleric@google.com>,
        Dan Rosenberg <drosenberg@vsecurity.com>,
        Julien Tinnes <jln@google.com>, Will Drewry <wad@chromium.org>
Subject: Re: [PATCH] x86: kaslr: move ELF relocation handling to C
Message-ID: <20130422080419.GB7080@gmail.com>
References: <20130419231638.GA20133@www.outflux.net>
 <20130421091342.GD31470@gmail.com>
 <CAGXu5jKFSmBTQ5Ay+MypkAStvDMrkWMNHCz4XGyy4bVjyVAnHg@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <CAGXu5jKFSmBTQ5Ay+MypkAStvDMrkWMNHCz4XGyy4bVjyVAnHg@mail.gmail.com>
User-Agent: Mutt/1.5.21 (2010-09-15)
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 1177
Lines: 33


* Kees Cook <keescook@chromium.org> wrote:

> On Sun, Apr 21, 2013 at 2:13 AM, Ingo Molnar <mingo@kernel.org> wrote:
> >
> > * Kees Cook <keescook@chromium.org> wrote:
> >
> >> Moves the relocation handling into C, after decompression. Only
> >> kernels that need relocation support will use the code. The new
> >> CONFIG_RANDOMIZE_BASE does not yet do anything except turn on this logic
> >> for 64-bit kernels.
> >
> > So why not keep the inactive CONFIG_RANDOMIZE_BASE hunks in a separate
> > patch, and just have this one clean, orthogonal patch that moves
> > relocation handling into C?
> 
> I had wanted there to be a way to test building with 64-bit
> relocations. With this patch and CONFIG_RANDOMIZE_BASE=y, I could do
> that. Would you rather I remove those pieces?

But AFAICS CONFIG_RANDOMIZE_BASE is not an interactive config option, so 
how did you turn it on?

But no strong objections in any case.

Thanks,

	Ingo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/