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=-5.4 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 4F0F2C4727C for ; Tue, 22 Sep 2020 18:22:07 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D6EFA239D2 for ; Tue, 22 Sep 2020 18:22:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=xen.org header.i=@xen.org header.b="c8qSKFVA" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D6EFA239D2 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=xen.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kKmvK-0007yB-UV; Tue, 22 Sep 2020 18:21:54 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kKmvI-0007xv-UC for xen-devel@lists.xenproject.org; Tue, 22 Sep 2020 18:21:52 +0000 X-Inumbo-ID: 431a5999-bdb4-41f4-9034-d0f9193a4eaa Received: from mail.xenproject.org (unknown [104.130.215.37]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 431a5999-bdb4-41f4-9034-d0f9193a4eaa; Tue, 22 Sep 2020 18:21:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=xen.org; s=20200302mail; h=Content-Transfer-Encoding:Content-Type:In-Reply-To: MIME-Version:Date:Message-ID:From:References:Cc:To:Subject; bh=XpjX4Z4nQvJ3LfmsZeasd5pOw42OKnlvO/wax0WD9cQ=; b=c8qSKFVAAdgIqjQ1i9DAGdknhn fPE+SJhZ3yL8Ah2AqBrvqZOnVII7ln/9U6XzVpUbWd3f/UMCvrmGWwJr1l/66OOBDd4WIlpIDMDLr Af63qNTgRA3Se5ESlYvHQJ+6de6X6c7d3yiIuBQuBaj31ZuVbrAgWdN/j9jfjoTo8SqM=; Received: from xenbits.xenproject.org ([104.239.192.120]) by mail.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kKmvE-0005PG-Fe; Tue, 22 Sep 2020 18:21:48 +0000 Received: from [54.239.6.185] (helo=a483e7b01a66.ant.amazon.com) by xenbits.xenproject.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.92) (envelope-from ) id 1kKmvE-000529-7G; Tue, 22 Sep 2020 18:21:48 +0000 Subject: Re: [PATCH v4 2/4] xen: Introduce HAS_M2P config and use to protect mfn_to_gmfn call To: Jan Beulich Cc: xen-devel@lists.xenproject.org, Julien Grall , Andrew Cooper , =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= , Wei Liu , George Dunlap , Ian Jackson , Stefano Stabellini , Volodymyr Babchuk References: <20200921180214.4842-1-julien@xen.org> <20200921180214.4842-3-julien@xen.org> From: Julien Grall Message-ID: <3710018a-6da4-c38c-b954-b83309aeb525@xen.org> Date: Tue, 22 Sep 2020 19:21:45 +0100 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:68.0) Gecko/20100101 Thunderbird/68.12.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-GB Content-Transfer-Encoding: 7bit X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" Hi Jan, On 22/09/2020 08:54, Jan Beulich wrote: > On 21.09.2020 20:02, Julien Grall wrote: >> --- a/xen/common/Kconfig >> +++ b/xen/common/Kconfig >> @@ -63,6 +63,9 @@ config HAS_IOPORTS >> config HAS_SCHED_GRANULARITY >> bool >> >> +config HAS_M2P >> + bool > > Following Andrew's comments I think the need for this addition > disappears, but in case I'm missing something I'd like to ask for > this to be added higher up - see the patch I've just sent to > re-sort the various HAS_* here. It is required for patch #4. Cheers, -- Julien Grall