Received: by 2002:a25:6193:0:0:0:0:0 with SMTP id v141csp60738ybb; Thu, 19 Mar 2020 11:39:57 -0700 (PDT) X-Google-Smtp-Source: ADFU+vtUyMzbaWBgxCM3/dPxebHq9gu399fv11mK/ai6Kk3z3XmvK8UoVL/KQvgJNHDx9i56MAwe X-Received: by 2002:a54:4001:: with SMTP id x1mr3588986oie.67.1584643196869; Thu, 19 Mar 2020 11:39:56 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1584643196; cv=none; d=google.com; s=arc-20160816; b=QGORuy70GbhUDBVr1hme3jUopJPhkETbCjfuZVMNe7g2POsvECYYxAWA1Y5VEhLjUv YcxW2G5CtTEKagXxddTjK+34XclamQ2TC6AJpSgSzglPMo3DgRNeK2CfxIqq84sCnh/V jr1znhoRVD1+HT0enWiSPZRWM60W9I8sEwurtfnZPTWV5LfWKUJSNganPKTvKVADVMZO cP/oWSLnN1yBU8YCHHtCTpkcC9A7dGxhYzqcD3bZiwlUZVb4cTgvIfFhgRSKt8+EJAXN Fzdp2O6QW5+Z8Xd8eJYFchy/KsQhhVdWP/gr25x5stVXkdvJA5S7F9KVkRwqoITgUREw WFxg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-transfer-encoding:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=4qgEWJZ72MV2OOSVfQ9z4XHL+RIgsQus0eO4Rt6vhlE=; b=n4Zlua56upv3ReMswPphmkFZOyJmevn98nv7RbOitNvw69kT0WaZLH5cfL03XJWjJi EAJYnTqVQckhTeNMWWjWUDUG82RZ3GgTaydJ3evOl1qI8cuEy4QBxspJlVs+CDBjtUnV pvMCWG04OKgT6YHlX4KzoQLEUSbFrSBfWGjcQw9FrXbiNNyn1W7rsfaj/QrCDZrin0oP mbUXPlfZRBKa+NJTZNhHcC4mRSNA4QjTMwJdCP509ylaXahhWvNDHkpBuRf1S8fq8j0I 0MtfsLfthVt2kssBgluemXbU0UHfsxhxD0fPHGlx+R85Qn8ZblB/6szRWSpMC1y3mmLt 5V2w== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=YqrPWyaw; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id f207si1475940oib.65.2020.03.19.11.39.42; Thu, 19 Mar 2020 11:39:56 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=YqrPWyaw; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727009AbgCSSiD (ORCPT + 99 others); Thu, 19 Mar 2020 14:38:03 -0400 Received: from mail.kernel.org ([198.145.29.99]:59358 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725787AbgCSSiD (ORCPT ); Thu, 19 Mar 2020 14:38:03 -0400 Received: from willie-the-truck (236.31.169.217.in-addr.arpa [217.169.31.236]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 1849A20787; Thu, 19 Mar 2020 18:38:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1584643083; bh=EbDQJIl0hkZJqlYCAUK0V7oBidFc1rqWCcQnEG+tmG0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=YqrPWyawhOPX3wobShrUGlCj0Sr0s52Zez9zH5c2PmSayEOBmwJ4+mshlUP6DhnLw TA3y83J/Ycn+3TgNY3QKePsAXJKNICU6xAzTXNrtOgnKgP7rKTeic5n/MX/Y6U5hCE +L1gTUZ5C36Cd7MZd8CYoam4z6dEQL9p9kx/+AOw= Date: Thu, 19 Mar 2020 18:37:58 +0000 From: Will Deacon To: =?iso-8859-1?Q?R=E9mi?= Denis-Courmont Cc: Catalin Marinas , linux-arm-kernel@lists.infradead.org, Mark Rutland , James Morse , linux-kernel@vger.kernel.org Subject: Re: [PATCHv3 0/3] clean up KPTI / SDEI trampoline data alignment Message-ID: <20200319183758.GB27141@willie-the-truck> References: <1938400.7m7sAWtiY1@basile.remlab.net> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1938400.7m7sAWtiY1@basile.remlab.net> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Mar 19, 2020 at 11:12:56AM +0200, R?mi Denis-Courmont wrote: > 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. > > ---------------------------------------------------------------- > R?mi Denis-Courmont (3): > arm64: clean up trampoline vector loads > arm64/sdei: gather trampolines' .rodata > arm64: reduce trampoline data alignment For the series: Acked-by: Will Deacon [in future please don't drop acks from patches that haven't changed, cheers] Will