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=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_MUTT autolearn=ham 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 583D3C04AB5 for ; Mon, 3 Jun 2019 11:15:48 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id DF95428113 for ; Mon, 3 Jun 2019 11:15:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DF95428113 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvmarm-bounces@lists.cs.columbia.edu Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 6F8724A445; Mon, 3 Jun 2019 07:15:47 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id F1+qWnp4Y5jX; Mon, 3 Jun 2019 07:15:44 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 610AE4A3B2; Mon, 3 Jun 2019 07:15:44 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 7D4284A3B2 for ; Mon, 3 Jun 2019 07:15:42 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id xHu2PgYlfBfB for ; Mon, 3 Jun 2019 07:15:41 -0400 (EDT) Received: from foss.arm.com (foss.arm.com [217.140.101.70]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 331BB4A319 for ; Mon, 3 Jun 2019 07:15:41 -0400 (EDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 81A46A78; Mon, 3 Jun 2019 04:15:40 -0700 (PDT) Received: from e103592.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.72.51.249]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id D7C5B3F5AF; Mon, 3 Jun 2019 04:15:38 -0700 (PDT) Date: Mon, 3 Jun 2019 12:15:36 +0100 From: Dave Martin To: Andre Przywara Subject: Re: [PATCH kvmtool v3 8/9] arm64: Add SVE support Message-ID: <20190603111536.GM28398@e103592.cambridge.arm.com> References: <1559229194-3036-1-git-send-email-Dave.Martin@arm.com> <1559229194-3036-9-git-send-email-Dave.Martin@arm.com> <20190531181331.2a4ef6dd@donnerap.cambridge.arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20190531181331.2a4ef6dd@donnerap.cambridge.arm.com> User-Agent: Mutt/1.5.23 (2014-03-12) Cc: Christoffer Dall , Marc Zyngier , Will Deacon , Kristina Martsenko , Zhang Lei , Amit Daniel Kachhap , kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu On Fri, May 31, 2019 at 06:13:31PM +0100, Andre Przywara wrote: > On Thu, 30 May 2019 16:13:13 +0100 > Dave Martin wrote: > > > This patch adds --enable-sve/--disable-sve command line options to > > allow the user to control whether the Scalable Vector Extension is > > made available to the guest. > > I guess I have a similar concern about this enable/disable pair being > confusing, though there is more sense here for SVE, given the impact of it > being enabled in the guest. > > Maybe we can cover both pointer auth and SVE options with the same revised > approach? I agree that we should follow the same approach for both when we've decided what approach to take. (That was part of the reason for pulling both into the same series -- I didn't want to end up randomly doing two different things without a conscious intention to do so.) Cheers ---Dave _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm