From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 75636C4332D for ; Thu, 19 Mar 2020 09:13:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4FB4520722 for ; Thu, 19 Mar 2020 09:13:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726895AbgCSJNB convert rfc822-to-8bit (ORCPT ); Thu, 19 Mar 2020 05:13:01 -0400 Received: from poy.remlab.net ([94.23.215.26]:55482 "EHLO ns207790.ip-94-23-215.eu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726063AbgCSJNB (ORCPT ); Thu, 19 Mar 2020 05:13:01 -0400 Received: from basile.remlab.net (87-92-31-51.bb.dnainternet.fi [87.92.31.51]) (Authenticated sender: remi) by ns207790.ip-94-23-215.eu (Postfix) with ESMTPSA id 6848C5FB07; Thu, 19 Mar 2020 10:12:58 +0100 (CET) From: =?ISO-8859-1?Q?R=E9mi?= Denis-Courmont To: Catalin Marinas , Will Deacon , linux-arm-kernel@lists.infradead.org Cc: Mark Rutland , James Morse , linux-kernel@vger.kernel.org Subject: [PATCHv3 0/3] clean up KPTI / SDEI trampoline data alignment Date: Thu, 19 Mar 2020 11:12:56 +0200 Message-ID: <1938400.7m7sAWtiY1@basile.remlab.net> Organization: Remlab MIME-Version: 1.0 Content-Transfer-Encoding: 8BIT Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, The KPTI and SDE trampolines each load a pointer from the same fixmap data page. This reduces the data alignment to the useful value, and tries to clarify the assembler code. Changes since v2: - Retain alignment even when SDEI is disabled to keep ld happy. ---------------------------------------------------------------- Rémi Denis-Courmont (3): arm64: clean up trampoline vector loads arm64/sdei: gather trampolines' .rodata arm64: reduce trampoline data alignment arch/arm64/kernel/entry.S | 23 ++++++++++------------- arch/arm64/mm/mmu.c | 5 ++--- 2 files changed, 12 insertions(+), 16 deletions(-) -- Реми Дёни-Курмон http://www.remlab.net/