Received: by 2002:a25:c593:0:0:0:0:0 with SMTP id v141csp635556ybe; Wed, 11 Sep 2019 02:16:50 -0700 (PDT) X-Google-Smtp-Source: APXvYqxKONzNaw9qWK55OitIVyjt0Y1xTxi9O0p83nkEwWIbfP8NTXETr0hqooFAn3KaEDTFBGsf X-Received: by 2002:a17:906:cccc:: with SMTP id ot12mr29219162ejb.210.1568193410441; Wed, 11 Sep 2019 02:16:50 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1568193410; cv=none; d=google.com; s=arc-20160816; b=a+gsHx6hkxYqigK1njSbbEgMLB3NBFV6A+10T9MFXNivURosrxw0vgP5/hO6EyQOmK Hnx2n430x35N0qdtcgcPCYiPqUf4zeKtF0zhtOhRX7jqimBOCCsbP7nS3rOCC8YIn5PB RhIuLWP92aEeBaSLB6MY5sYodrKYaazPHo4Cm75k2Z/0lcwqNn/kZgsEMv5cYUq6nPU8 S2T9rShfaGjIlDBPcEsKcGrbAJfQWnHPBONpXEyMZNwZAd8TprPXqCcbfsN/RV/7TBKw p9f8+DQEhA4prOCZ8FiM+efeo2tX2Z6V4U67KFjkSax8kPLwiIIyxj/0mpYEdjn0KGoR xu4Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding :content-language:in-reply-to:mime-version:user-agent:date :message-id:from:references:cc:to:subject; bh=pGOIznl5CuxeXgFwolVR4WQjaEuCxgguv02GZdyEKA8=; b=Rl3+TsRtLJsip/WbrjnGaH9J6AFFp6gGrg0b3TDvBcfF6INxvj1wvJGlLEa0dFk73K P2MShbSEerfPAQcM6+htC3gX0vHHROyCa64P1DHllgeduJ6/phvsw0QMAGLgRZBkVzWV 07lnv6LYYk7xTcqunmhjWfEaBwNs+Pdt4mjPIwsE6Y3ODGK/Nd8I0RS8c3scxwZrcwG4 aS1QY7g8r6MJeP7wMxRAminDCfZzey9eGQ1gfgfCltlsuwbzKw2IN+7ZXEgVUHALsqAz BHhD9sDkOwgBr4jrRFnL2ug/Wz1rYZCRzsYY2K8eu8dBHh7XGUOIRk6jG9X4K2gKgrGB Pv2w== ARC-Authentication-Results: i=1; mx.google.com; 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 Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id b13si10718654eja.189.2019.09.11.02.16.26; Wed, 11 Sep 2019 02:16:50 -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; 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 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727138AbfIKJNn (ORCPT + 99 others); Wed, 11 Sep 2019 05:13:43 -0400 Received: from mx2.suse.de ([195.135.220.15]:60866 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726702AbfIKJNm (ORCPT ); Wed, 11 Sep 2019 05:13:42 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 1FCDFB033; Wed, 11 Sep 2019 09:13:41 +0000 (UTC) Subject: Re: [Xen-devel] [PATCH] xen/pci: try to reserve MCFG areas earlier To: Igor Druzhinin Cc: xen-devel@lists.xenproject.org, Boris Ostrovsky , linux-kernel@vger.kernel.org, Juergen Gross References: <1567556431-9809-1-git-send-email-igor.druzhinin@citrix.com> <5054ad91-5b87-652c-873a-b31758948bd7@oracle.com> <43b7da04-5c42-80d8-898b-470ee1c91ed2@oracle.com> <1695c88d-e5ad-1854-cdef-3cd95c812574@oracle.com> <4d3bf854-51de-99e4-9a40-a64c581bdd10@citrix.com> <43e492ff-f967-7218-65c4-d16581fabea3@oracle.com> <416ff4b7-3186-f61a-75fa-bcfc968f8117@citrix.com> <9ac1f34b-ea2a-3818-4cbd-a22a9a475dd4@oracle.com> <74c9d2cc-a528-2cec-099e-0d803aeace6f@citrix.com> From: Jan Beulich Message-ID: <65b8d74a-2f7b-a257-a750-9dada5206f01@suse.com> Date: Wed, 11 Sep 2019 11:13:41 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: <74c9d2cc-a528-2cec-099e-0d803aeace6f@citrix.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11.09.2019 03:15, Igor Druzhinin wrote: > Another thing that I implied by "not supporting" but want to explicitly > call out is that currently Xen will refuse reserving any MCFG area > unless it actually existed in MCFG table at boot. I don't clearly > understand reasoning behind it but it might be worth relaxing at least > size matching restriction on Xen side now with this change. I guess it's because no-one had a system were it would be needed, and hence could be tested. Jan