From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754637AbdKALzn (ORCPT ); Wed, 1 Nov 2017 07:55:43 -0400 Received: from mga03.intel.com ([134.134.136.65]:36495 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754517AbdKALzl (ORCPT ); Wed, 1 Nov 2017 07:55:41 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.44,327,1505804400"; d="scan'208";a="1212800391" From: "Kirill A. Shutemov" 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" 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> X-Mailer: git-send-email 2.14.2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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