Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S932829AbeAKVcj (ORCPT <rfc822;ralf@linux-mips.org> + 1 other);
        Thu, 11 Jan 2018 16:32:39 -0500
Received: from Galois.linutronix.de ([146.0.238.70]:59932 "EHLO
        Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S932290AbeAKVch (ORCPT
        <rfc822;linux-kernel@vger.kernel.org>);
        Thu, 11 Jan 2018 16:32:37 -0500
Date: Thu, 11 Jan 2018 22:32:25 +0100 (CET)
From: Thomas Gleixner <tglx@linutronix.de>
To: Linus Torvalds <torvalds@linux-foundation.org>
cc: Pavel Tatashin <pasha.tatashin@oracle.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Andy Lutomirski <luto@kernel.org>,
        Hugh Dickins <hughd@google.com>, Thomas Voegtle <tv@lio96.de>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Guenter Roeck <linux@roeck-us.net>,
        Shuah Khan <shuahkh@osg.samsung.com>, patches@kernelci.org,
        Ben Hutchings <ben.hutchings@codethink.co.uk>,
        lkft-triage@lists.linaro.org, stable <stable@vger.kernel.org>,
        Steve Sistare <steven.sistare@oracle.com>,
        Matt Fleming <matt@codeblueprint.co.uk>,
        Borislav Petkov <bp@alien8.de>
Subject: Re: [PATCH 4.4 00/37] 4.4.110-stable review
In-Reply-To: <CA+55aFxq5dsmeGaXxR55+P+P+6MDjUkEUWkLp8pb3j+GOFYxTw@mail.gmail.com>
Message-ID: <alpine.DEB.2.20.1801112157390.2091@nanos>
References: <20180105175229.GA29834@kroah.com> <CAOAebxv47m34R1qteFaQB1-x4jsUVJPPvPLVe4jxRGZeFUY2qA@mail.gmail.com> <CAOAebxuqK4TOktLrHNLdW-S3oSxVO2og84js7N5u_QDC7mE2Ow@mail.gmail.com> <20180105204557.GA8839@kroah.com> <a93f30d1-e00e-419b-532d-203be16e2299@oracle.com>
 <20180107104540.GB14783@kroah.com> <CAOAebxsBVTyS2gSXh4c-g1b8Lvjv9MBG3Wjr_AC+LJpMLHRqEA@mail.gmail.com> <CAOAebxsP1LLV-Eg_h8brbxfsn_tpRDR46yrVZeokrFt3ArRuMA@mail.gmail.com> <20180108074645.GA24062@kroah.com> <CAOAebxu_gGE5chc-Mn=zBo_M3ojExvooNfvFRWOT=FygoffjLQ@mail.gmail.com>
 <CAOAebxuecMGOVe4zfNgk+t3mXVnDaWVA-GLdb+HiX3t9LNnxLg@mail.gmail.com> <CAOAebxu-OY-sxEZVzOkrG0iVG92ACiMNWk9xXVqZjj8kO5gp3A@mail.gmail.com> <CAOAebxtr6fg+_qpCpotgcWyfAzDZEczZ3SuGHQkRSEE3MKh8Mg@mail.gmail.com> <CA+55aFxji41K_MdLAKiZ7MaXNT4w=OV0yQiTvroJs0_jy6DUOw@mail.gmail.com>
 <alpine.DEB.2.20.1801112105010.2091@nanos> <CA+55aFxq5dsmeGaXxR55+P+P+6MDjUkEUWkLp8pb3j+GOFYxTw@mail.gmail.com>
User-Agent: Alpine 2.20 (DEB 67 2015-01-07)
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
X-Linutronix-Spam-Score: -1.0
X-Linutronix-Spam-Level: -
X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required,  ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org
Return-Path: <linux-kernel-owner@vger.kernel.org>

On Thu, 11 Jan 2018, Linus Torvalds wrote:

> On Thu, Jan 11, 2018 at 12:37 PM, Thomas Gleixner <tglx@linutronix.de> wrote:
> >
> > 67a9108ed431 ("x86/efi: Build our own page table structures")
> >
> > got rid of EFI depending on real_mode_header->trampoline_pgd
> 
> So I think it only got rid of by default - the codepath is still
> there, the allocation is still there, it's just that it's not actually
> used unless somebody does that "efi=old_mmap" thing.

Yes, the trampoline_pgd is still around, but I can't figure out how it
would be used after boot. Confused, digging more.

Thanks,

	tglx