From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753487AbdLHNKb (ORCPT ); Fri, 8 Dec 2017 08:10:31 -0500 Received: from mga03.intel.com ([134.134.136.65]:57107 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752470AbdLHNKa (ORCPT ); Fri, 8 Dec 2017 08:10:30 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.45,377,1508828400"; d="scan'208";a="10192001" From: "Kirill A. Shutemov" To: Ingo Molnar , x86@kernel.org, Thomas Gleixner , "H. Peter Anvin" Cc: Linus Torvalds , Andy Lutomirski , Cyrill Gorcunov , Borislav Petkov , Andi Kleen , linux-mm@kvack.org, linux-kernel@vger.kernel.org, "Kirill A. Shutemov" Subject: [PATCHv5 0/3] x86: 5-level related changes into decompression code Date: Fri, 8 Dec 2017 16:09:19 +0300 Message-Id: <20171208130922.21488-1-kirill.shutemov@linux.intel.com> X-Mailer: git-send-email 2.15.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Here's few changes to x86 decompression code. The first patch is pure cosmetic change: it gives file with KASLR helpers a proper name. The last two patches bring support of booting into 5-level paging mode if a bootloader put the kernel above 4G. Patch 2/3 handles allocation of space for trampoline and gets it prepared. Patch 3/3 gets trampoline used. Kirill A. Shutemov (3): x86/boot/compressed/64: Rename pagetable.c to kaslr_64.c 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 | 138 +++++++++++++-------- .../boot/compressed/{pagetable.c => kaslr_64.c} | 0 arch/x86/boot/compressed/pgtable.h | 18 +++ arch/x86/boot/compressed/pgtable_64.c | 61 +++++++-- 5 files changed, 153 insertions(+), 66 deletions(-) rename arch/x86/boot/compressed/{pagetable.c => kaslr_64.c} (100%) create mode 100644 arch/x86/boot/compressed/pgtable.h -- 2.15.0