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Date: Thu, 24 May 2018 11:11:44 +0200
From: Juergen Gross <jgross@...e.com>
To: Thomas Garnier <thgarnie@...gle.com>,
Herbert Xu <herbert@...dor.apana.org.au>,
"David S . Miller" <davem@...emloft.net>,
Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>,
"H . Peter Anvin" <hpa@...or.com>, Peter Zijlstra <peterz@...radead.org>,
Josh Poimboeuf <jpoimboe@...hat.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Philippe Ombredanne <pombredanne@...b.com>,
Kate Stewart <kstewart@...uxfoundation.org>,
Arnaldo Carvalho de Melo <acme@...hat.com>, Yonghong Song <yhs@...com>,
Andrey Ryabinin <aryabinin@...tuozzo.com>, Kees Cook
<keescook@...omium.org>, Tom Lendacky <thomas.lendacky@....com>,
"Kirill A . Shutemov" <kirill.shutemov@...ux.intel.com>,
Andy Lutomirski <luto@...nel.org>,
Dominik Brodowski <linux@...inikbrodowski.net>,
Borislav Petkov <bp@...en8.de>, Borislav Petkov <bp@...e.de>,
"Rafael J . Wysocki" <rjw@...ysocki.net>, Len Brown <len.brown@...el.com>,
Pavel Machek <pavel@....cz>, Alok Kataria <akataria@...are.com>,
Steven Rostedt <rostedt@...dmis.org>, Jan Kiszka <jan.kiszka@...mens.com>,
Tejun Heo <tj@...nel.org>, Christoph Lameter <cl@...ux.com>,
Dennis Zhou <dennisszhou@...il.com>,
Boris Ostrovsky <boris.ostrovsky@...cle.com>,
Alexey Dobriyan <adobriyan@...il.com>, Masami Hiramatsu
<mhiramat@...nel.org>, Cao jin <caoj.fnst@...fujitsu.com>,
Francis Deslauriers <francis.deslauriers@...icios.com>,
"Paul E . McKenney" <paulmck@...ux.vnet.ibm.com>,
Nicolas Pitre <nicolas.pitre@...aro.org>,
Andrew Morton <akpm@...ux-foundation.org>,
Randy Dunlap <rdunlap@...radead.org>, "Luis R . Rodriguez"
<mcgrof@...nel.org>, Arnd Bergmann <arnd@...db.de>,
Christopher Li <sparse@...isli.org>, Jason Baron <jbaron@...mai.com>,
Mika Westerberg <mika.westerberg@...ux.intel.com>,
Lukas Wunner <lukas@...ner.de>, Dou Liyang <douly.fnst@...fujitsu.com>,
Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
Petr Mladek <pmladek@...e.com>,
Masahiro Yamada <yamada.masahiro@...ionext.com>,
Ingo Molnar <mingo@...nel.org>, Nicholas Piggin <npiggin@...il.com>,
"H . J . Lu" <hjl.tools@...il.com>, Paolo Bonzini <pbonzini@...hat.com>,
Radim Krčmář <rkrcmar@...hat.com>,
Joerg Roedel <joro@...tes.org>, David Woodhouse <dwmw@...zon.co.uk>,
Dave Hansen <dave.hansen@...ux.intel.com>, Rik van Riel <riel@...hat.com>,
Jia Zhang <qianyue.zj@...baba-inc.com>,
Ricardo Neri <ricardo.neri-calderon@...ux.intel.com>,
Jonathan Corbet <corbet@....net>, Jan Beulich <JBeulich@...e.com>,
Matthias Kaehlcke <mka@...omium.org>, Baoquan He <bhe@...hat.com>,
Jan H . Schönherr <jschoenh@...zon.de>,
Daniel Micay <danielmicay@...il.com>
Cc: x86@...nel.org, linux-crypto@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
virtualization@...ts.linux-foundation.org, xen-devel@...ts.xenproject.org,
linux-arch@...r.kernel.org, linux-sparse@...r.kernel.org,
kvm@...r.kernel.org, linux-doc@...r.kernel.org,
kernel-hardening@...ts.openwall.com
Subject: Re: [PATCH v3 18/27] xen: Adapt assembly for PIE support
On 23/05/18 21:54, Thomas Garnier wrote:
> Change the assembly code to use the new _ASM_MOVABS macro which get a
> symbol reference while being PIE compatible. Adapt the relocation tool
> to ignore 32-bit Xen code.
>
> Position Independent Executable (PIE) support will allow to extended the
> KASLR randomization range below the -2G memory limit.
>
> Signed-off-by: Thomas Garnier <thgarnie@...gle.com>
Reviewed-by: Juergen Gross <jgross@...e.com>
Juergen
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