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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 52004C433EF for ; Wed, 13 Oct 2021 12:02:43 +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 14CFD60EB4 for ; Wed, 13 Oct 2021 12:02:43 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 14CFD60EB4 Authentication-Results: mail.kernel.org; dmarc=pass (p=none dis=none) header.from=xenproject.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.208309.364382 (Exim 4.92) (envelope-from ) id 1macxu-00024g-Dv; Wed, 13 Oct 2021 12:02:34 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 208309.364382; Wed, 13 Oct 2021 12:02:34 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1macxu-00024Z-AM; Wed, 13 Oct 2021 12:02:34 +0000 Received: by outflank-mailman (input) for mailman id 208309; Wed, 13 Oct 2021 12:02:33 +0000 Received: from mail.xenproject.org ([104.130.215.37]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1macxt-00024L-TL for xen-devel@lists.xenproject.org; Wed, 13 Oct 2021 12:02:33 +0000 Received: from xenbits.xenproject.org ([104.239.192.120]) by mail.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1macxt-0003ze-Sa for xen-devel@lists.xenproject.org; Wed, 13 Oct 2021 12:02:33 +0000 Received: from iwj (helo=mariner.uk.xensource.com) by xenbits.xenproject.org with local-bsmtp (Exim 4.92) (envelope-from ) id 1macxt-00023r-Rs for xen-devel@lists.xenproject.org; Wed, 13 Oct 2021 12:02:33 +0000 Received: from iwj by mariner.uk.xensource.com with local (Exim 4.89) (envelope-from ) id 1macxj-0007XH-Rm; Wed, 13 Oct 2021 13:02:23 +0100 X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=xenproject.org; s=20200302mail; h=References:In-Reply-To:Subject:Cc:To:Date :Message-ID:Content-Transfer-Encoding:Content-Type:MIME-Version:From; bh=jdxMlChK8o9c2/GnMMmZzLHnp9pzrQP2ZAhudAXxbIQ=; b=rbkeL2mtQbiyRiyYDlQcoLCoI7 3Sxbeyqn03OkHYGrjcnxZplKE/oajs/aVjeNi5+NfVHDP2K3AjlAZEJSEJSHyhmxvtHv1qN30dyL9 x2Lf376HFwwcCquC2aV0nWyvFJncvGMjMTZRIsllHW2nRqYuup0jTieu4scnPPivTydY=; From: Ian Jackson MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Message-ID: <24934.51918.994290.825524@mariner.uk.xensource.com> Date: Wed, 13 Oct 2021 13:02:22 +0100 To: Roger Pau =?iso-8859-1?Q?Monn=E9?= Cc: Bertrand Marquis , Jan Beulich , Oleksandr Andrushchenko , Rahul Singh , "xen-devel\@lists.xenproject.org" , Andre Przywara , Wei Liu , Juergen Gross , Stefano Stabellini Subject: Re: [PATCH v5 01/11] xen/arm: xc_domain_ioport_permission(..) not supported on ARM. In-Reply-To: References: <0744b957-1832-dff2-9ae2-b8e8534f501b@suse.com> <09656882-b297-7144-c291-1ee997edb119@suse.com> <69A83587-B7E0-4653-AF8C-AEE802922CE5@arm.com> <24933.41349.893363.203683@mariner.uk.xensource.com> X-Mailer: VM 8.2.0b under 24.5.1 (i686-pc-linux-gnu) Roger Pau Monné writes ("Re: [PATCH v5 01/11] xen/arm: xc_domain_ioport_permission(..) not supported on ARM."): > IMO it would be good to modify the commit message so it covers the > fact that the emulated host bridge on Arm does not advertise IO port > support, so the guest is capable of realizing IO BARs are not > supported. Yes. > Otherwise it seems like the toolstack is ignoring a failure which > could cause a device to malfunction when passed though (which is still > the case, but the guest will be able to notice). Quite. Thanks, Ian.