From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr0-f200.google.com (mail-wr0-f200.google.com [209.85.128.200]) by kanga.kvack.org (Postfix) with ESMTP id B790C6B0038 for ; Mon, 25 Sep 2017 09:16:15 -0400 (EDT) Received: by mail-wr0-f200.google.com with SMTP id k20so9015172wre.6 for ; Mon, 25 Sep 2017 06:16:15 -0700 (PDT) Received: from mail-sor-f65.google.com (mail-sor-f65.google.com. [209.85.220.65]) by mx.google.com with SMTPS id r12sor3201227edb.17.2017.09.25.06.16.14 for (Google Transport Security); Mon, 25 Sep 2017 06:16:14 -0700 (PDT) Date: Mon, 25 Sep 2017 16:16:12 +0300 From: "Kirill A. Shutemov" Subject: Re: [PATCHv7 00/19] Boot-time switching between 4- and 5-level paging for 4.15 Message-ID: <20170925131612.eokduxczf5grrqte@node.shutemov.name> References: <20170918105553.27914-1-kirill.shutemov@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20170918105553.27914-1-kirill.shutemov@linux.intel.com> Sender: owner-linux-mm@kvack.org List-ID: To: Ingo Molnar Cc: "Kirill A. Shutemov" , Linus Torvalds , x86@kernel.org, Thomas Gleixner , "H. Peter Anvin" , Andrew Morton , Andy Lutomirski , Cyrill Gorcunov , Borislav Petkov , linux-mm@kvack.org, linux-kernel@vger.kernel.org On Mon, Sep 18, 2017 at 01:55:34PM +0300, Kirill A. Shutemov wrote: > The basic idea is to implement the same logic as pgtable-nop4d.h provides, > but at runtime. > > Runtime folding is only implemented for CONFIG_X86_5LEVEL=y case. With the > option disabled, we do compile-time folding as before. > > Initially, I tried to fold pgd instread. I've got to shell, but it > required a lot of hacks as kernel threats pgd in a special way. > > Ingo, if no objections, could you apply the series? Ingo, any chance you would find time for this? -- Kirill A. Shutemov -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org