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Date: Tue, 10 May 2016 19:44:07 +0200
From: Borislav Petkov <bp@...e.de>
To: Kees Cook <keescook@...omium.org>
Cc: Ingo Molnar <mingo@...nel.org>, Yinghai Lu <yinghai@...nel.org>,
Baoquan He <bhe@...hat.com>, Ingo Molnar <mingo@...hat.com>,
"H. Peter Anvin" <hpa@...or.com>, Vivek Goyal <vgoyal@...hat.com>,
Andy Lutomirski <luto@...nel.org>, lasse.collin@...aani.org,
Andrew Morton <akpm@...ux-foundation.org>,
Dave Young <dyoung@...hat.com>, kernel-hardening@...ts.openwall.com,
LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v8 1/4] x86/KASLR: Clarify identity map interface
On Tue, May 10, 2016 at 10:19:12AM -0700, Kees Cook wrote:
> This extracts the call to prepare_level4() into a top-level function
> that the user of the pagetable.c interface must call to initialize
> the new page tables. For clarity and to match the "finalize" function,
> it has been renamed to initialize_identity_maps(). This function also
> gains the initialization of mapping_info so we don't have to do it each
> time in add_identity_map().
>
> Additionally add copyright notice to the top, to make it clear that the
> bulk of the pagetable.c code was written by Yinghai, and that I just
> added bugs later. :)
>
> Signed-off-by: Kees Cook <keescook@...omium.org>
> ---
> arch/x86/boot/compressed/kaslr.c | 3 +++
> arch/x86/boot/compressed/misc.h | 3 +++
> arch/x86/boot/compressed/pagetable.c | 26 ++++++++++++++++----------
> 3 files changed, 22 insertions(+), 10 deletions(-)
Exactly!
Acked-by: Borislav Petkov <bp@...e.de>
--
Regards/Gruss,
Boris.
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
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