From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f198.google.com (mail-pf0-f198.google.com [209.85.192.198]) by kanga.kvack.org (Postfix) with ESMTP id 2D8766B0261 for ; Wed, 1 Nov 2017 08:16:15 -0400 (EDT) Received: by mail-pf0-f198.google.com with SMTP id b6so2098748pff.18 for ; Wed, 01 Nov 2017 05:16:15 -0700 (PDT) Received: from mga02.intel.com (mga02.intel.com. [134.134.136.20]) by mx.google.com with ESMTPS id n7si818387pgq.39.2017.11.01.05.16.13 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 01 Nov 2017 05:16:14 -0700 (PDT) From: "Kirill A. Shutemov" Subject: [PATCH 0/4] x86: 5-level related changes into decompression code Date: Wed, 1 Nov 2017 14:54:59 +0300 Message-Id: <20171101115503.18358-1-kirill.shutemov@linux.intel.com> Sender: owner-linux-mm@kvack.org List-ID: To: Ingo Molnar , Linus Torvalds , x86@kernel.org, Thomas Gleixner , "H. Peter Anvin" Cc: Andy Lutomirski , Cyrill Gorcunov , Borislav Petkov , Andi Kleen , linux-mm@kvack.org, linux-kernel@vger.kernel.org, "Kirill A. Shutemov" Hi Ingo, While we haven't yet closed on how to handle MAX_PHYSMEM_BITS situation, could you look on changes into kernel decompression code? These changes prepare the code to boot-time switching between paging modes and handle booting in 5-level mode when bootloader put kernel image above 4G, but haven't enabled 5-level paging for us. Please review and consider applying. Kirill A. Shutemov (4): x86/boot/compressed/64: Compile pagetable.c unconditionally x86/boot/compressed/64: Detect and handle 5-level paging at boot-time x86/boot/compressed/64: Introduce place_trampoline() x86/boot/compressed/64: Handle 5-level paging boot if kernel is above 4G arch/x86/boot/compressed/Makefile | 2 +- arch/x86/boot/compressed/head_64.S | 99 +++++++++++++++++++++++++----------- arch/x86/boot/compressed/pagetable.c | 66 ++++++++++++++++++++++++ arch/x86/boot/compressed/pagetable.h | 18 +++++++ 4 files changed, 154 insertions(+), 31 deletions(-) create mode 100644 arch/x86/boot/compressed/pagetable.h -- 2.14.2 -- 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