From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f72.google.com (mail-wm0-f72.google.com [74.125.82.72]) by kanga.kvack.org (Postfix) with ESMTP id CCD3F6B0003 for ; Wed, 14 Feb 2018 07:10:53 -0500 (EST) Received: by mail-wm0-f72.google.com with SMTP id g16so5681478wmg.6 for ; Wed, 14 Feb 2018 04:10:53 -0800 (PST) Received: from mail-sor-f65.google.com (mail-sor-f65.google.com. [209.85.220.65]) by mx.google.com with SMTPS id f90sor633991wmh.50.2018.02.14.04.10.52 for (Google Transport Security); Wed, 14 Feb 2018 04:10:52 -0800 (PST) Date: Wed, 14 Feb 2018 13:10:49 +0100 From: Ingo Molnar Subject: Re: [PATCH 9/9] x86/mm: Adjust virtual address space layout in early boot Message-ID: <20180214121049.z4cjsdwxaaq5gpv5@gmail.com> References: <20180214111656.88514-1-kirill.shutemov@linux.intel.com> <20180214111656.88514-10-kirill.shutemov@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180214111656.88514-10-kirill.shutemov@linux.intel.com> Sender: owner-linux-mm@kvack.org List-ID: To: "Kirill A. Shutemov" 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 * 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? Thanks, Ingo -- 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