From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935613AbdIYNQQ (ORCPT ); Mon, 25 Sep 2017 09:16:16 -0400 Received: from mail-wm0-f67.google.com ([74.125.82.67]:36367 "EHLO mail-wm0-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933559AbdIYNQP (ORCPT ); Mon, 25 Sep 2017 09:16:15 -0400 X-Google-Smtp-Source: AOwi7QCyjE1GIM/cGCzYkySvUxbnMKhJGjiOOXFBuuszqcjDh6Ef8rHXlZ6lgbX9USKvGcnfwCOifg== Date: Mon, 25 Sep 2017 16:16:12 +0300 From: "Kirill A. Shutemov" 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 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> User-Agent: NeoMutt/20170609 (1.8.3) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: 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