From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S967629AbeBNMT1 (ORCPT ); Wed, 14 Feb 2018 07:19:27 -0500 Received: from mga11.intel.com ([192.55.52.93]:40281 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S967577AbeBNMTO (ORCPT ); Wed, 14 Feb 2018 07:19:14 -0500 X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.46,512,1511856000"; d="scan'208";a="18041301" Date: Wed, 14 Feb 2018 15:19:10 +0300 From: "Kirill A. Shutemov" To: Ingo Molnar Cc: Ingo Molnar , x86@kernel.org, Thomas Gleixner , "H. Peter Anvin" , Linus Torvalds , Andy Lutomirski , Borislav Petkov , Andi Kleen , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 9/9] x86/mm: Adjust virtual address space layout in early boot Message-ID: <20180214121910.yvnm7wcejpjux6eo@black.fi.intel.com> References: <20180214111656.88514-1-kirill.shutemov@linux.intel.com> <20180214111656.88514-10-kirill.shutemov@linux.intel.com> <20180214121049.z4cjsdwxaaq5gpv5@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180214121049.z4cjsdwxaaq5gpv5@gmail.com> User-Agent: NeoMutt/20170714-126-deb55f (1.8.3) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Feb 14, 2018 at 12:10:49PM +0000, Ingo Molnar wrote: > > * Kirill A. Shutemov wrote: > > > We need to adjust virtual address space to support switching between > > paging modes. > > > > The adjustment happens in __startup_64(). > > > > We also have to change KASLR code that doesn't expect variable > > VMALLOC_SIZE_TB. > > > > Signed-off-by: Kirill A. Shutemov > > --- > > arch/x86/boot/compressed/kaslr.c | 14 ++++++++-- > > arch/x86/include/asm/page_64_types.h | 9 ++---- > > arch/x86/include/asm/pgtable_64_types.h | 25 +++++++++-------- > > arch/x86/kernel/head64.c | 49 +++++++++++++++++++++++++++------ > > arch/x86/kernel/head_64.S | 2 +- > > arch/x86/mm/dump_pagetables.c | 3 ++ > > arch/x86/mm/kaslr.c | 11 ++++---- > > 7 files changed, 77 insertions(+), 36 deletions(-) > > This is too large and risky - would it be possible to split this up into multiple, > smaller patches? Let me check what I can do here. If you are fine with previous patches please apply. I will send split up of this patch separately. -- Kirill A. Shutemov