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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 EABA0C3A59F for ; Thu, 29 Aug 2019 13:29:44 +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 C2F9E2339E for ; Thu, 29 Aug 2019 13:29:44 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C2F9E2339E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.com Authentication-Results: mail.kernel.org; spf=none 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 4.89) (envelope-from ) id 1i3KUG-0004Sz-QS; Thu, 29 Aug 2019 13:29:16 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1i3KUF-0004Su-J3 for xen-devel@lists.xenproject.org; Thu, 29 Aug 2019 13:29:15 +0000 X-Inumbo-ID: fe204968-ca60-11e9-ae67-12813bfff9fa Received: from mx1.suse.de (unknown [195.135.220.15]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id fe204968-ca60-11e9-ae67-12813bfff9fa; Thu, 29 Aug 2019 13:29:14 +0000 (UTC) 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 679E6B653; Thu, 29 Aug 2019 13:29:13 +0000 (UTC) To: Paul Durrant References: <20190816172001.3905-1-paul.durrant@citrix.com> <20190816172001.3905-8-paul.durrant@citrix.com> From: Jan Beulich Message-ID: Date: Thu, 29 Aug 2019 15:29:13 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <20190816172001.3905-8-paul.durrant@citrix.com> Content-Language: en-US Subject: Re: [Xen-devel] [PATCH v6 07/10] use is_iommu_enabled() where appropriate... X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Jun Nakajima , Kevin Tian , Stefano Stabellini , VolodymyrBabchuk , Wei Liu , George Dunlap , Andrew Cooper , Julien Grall , Suravee Suthikulpanit , xen-devel@lists.xenproject.org, DanielDe Graaf , Brian Woods , =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" T24gMTYuMDguMjAxOSAxOToxOSwgUGF1bCBEdXJyYW50IHdyb3RlOgo+IC4uLnJhdGhlciB0aGFu IHRlc3RpbmcgdGhlIGdsb2JhbCBpb21tdV9lbmFibGVkIGZsYWcgYW5kIG9wcyBwb2ludGVyLgo+ IAo+IE5vdyB0aGF0IHRoZXJlIGlzIGEgcGVyLWRvbWFpbiBmbGFnIGluZGljYXRpbmcgd2hldGhl ciB0aGUgZG9tYWluIGlzCj4gcGVybWl0dGVkIHRvIHVzZSB0aGUgSU9NTVUgKHdoaWNoIGRldGVy bWluZXMgd2hldGhlciB0aGUgb3BzIHBvaW50ZXIgd2lsbAo+IGJlIHNldCksIG1hbnkgdGVzdHMg b2YgdGhlIGdsb2JhbCBpb21tdV9lbmFibGVkIGZsYWcgYW5kIG9wcyBwb2ludGVyIGNhbgo+IGJl IHRyYW5zbGF0ZWQgaW50byB0ZXN0cyBvZiB0aGUgcGVyLWRvbWFpbiBmbGFnLiBTb21lIG9mIHRo ZSBvdGhlciB0ZXN0cyBvZgo+IHB1cmVseSB0aGUgZ2xvYmFsIGlvbW11X2VuYWJsZWQgZmxhZyBj YW4gYWxzbyBiZSB0cmFuc2xhdGVkIGludG8gdGVzdHMgb2YKPiB0aGUgcGVyLWRvbWFpbiBmbGFn Lgo+IAo+IE5PVEU6IFRoZSBjb21tZW50IGluIGlvbW11X3NoYXJlX3AybV90YWJsZSgpIGlzIGFs c28gZml4ZWQ7IG5lZWRfaW9tbXUoKQo+ICAgICAgIGRpc2FwcGVhcmVkIHNvbWUgdGltZSBhZ28u IEFsc28sIHdoaWxzdCB0aGUgc3R5bGUgb2YgdGhlICdpZicgaW4KPiAgICAgICBmbGFza19pb21t dV9yZXNvdXJjZV91c2VfcGVybSgpIGlzIGZpeGVkLCBJIGhhdmUgbm90IHRyYW5zbGF0ZWQgYW55 Cj4gICAgICAgaW5zdGFuY2VzIG9mIHUzMiBpbnRvIHVpbnQzMl90IHRvIGtlZXAgY29uc2lzdGVu Y3kuIElNTyBzdWNoIGEKPiAgICAgICB0cmFuc2xhdGlvbiB3b3VsZCBiZSBiZXR0ZXIgZG9uZSBn bG9iYWxseSBmb3IgdGhlIHNvdXJjZSBtb2R1bGUgaW4KPiAgICAgICBhIHNlcGFyYXRlIHBhdGNo Lgo+ICAgICAgIFRoZSBjaGFuZ2UgaW4gdGhlIGluaXRpYWxpemF0aW9uIG9mIHRoZSAnaGQnIHZh cmlhYmxlIGluIGlvbW11X21hcCgpCj4gICAgICAgYW5kIGlvbW11X3VubWFwKCkgaXMgZG9uZSB0 byBrZWVwIHRoZSBQViBzaGltIGJ1aWxkIGhhcHB5LiBXaXRob3V0Cj4gICAgICAgdGhpcyBjaGFu Z2UgaXQgd2lsbCBmYWlsIHRvIGNvbXBpbGUgd2l0aCBlcnJvcnMgb2YgdGhlIGZvcm06Cj4gCj4g aW9tbXUuYzozNjE6MzI6IGVycm9yOiB1bnVzZWQgdmFyaWFibGUg4oCYaGTigJkgWy1XZXJyb3I9 dW51c2VkLXZhcmlhYmxlXQo+ICAgICAgY29uc3Qgc3RydWN0IGRvbWFpbl9pb21tdSAqaGQgPSBk b21faW9tbXUoZCk7Cj4gICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIF5+CgpX aHkgd291bGQgdGhhdCBiZT8gQWZhaWN0IHRoZXJlJ3Mgbm8gc2hvcnQtY2lyY3VpdGluZyBvZgpp c19pb21tdV9lbmFibGVkKCkgKGFsYmVpdCB0aGVyZSBjb3VsZCBiZSwgYXMgd2UgZG9uJ3QgbWVh biB0aGUgc2hpbQp0byBoYXZlL3VzZSBhbiBJT01NVSkuIE9oIC0gSSBndWVzcyBJIHNlZSBpdDog SW5zdGVhZCBvZiB0aGlzIGNoYW5nZQp3aGF0IEkgdGhpbmsgd2Ugd2FudCBpcyBmb3IgeDg2J3Mg aW9tbXVfY2FsbCgpIHRvIGV2YWx1YXRlIGl0cyAxc3QKYXJndW1lbnQuIE90aGVyd2lzZSB3ZSdy ZSBsaWFibGUgdG8gcnVuIGludG8gdGhlIHNhbWUgaXNzdWUgZWxzZXdoZXJlCmFnYWluLgoKPiAt LS0gYS94ZW4veHNtL2ZsYXNrL2hvb2tzLmMKPiArKysgYi94ZW4veHNtL2ZsYXNrL2hvb2tzLmMK PiBAQCAtODg2LDcgKzg4Niw3IEBAIHN0YXRpYyBpbnQgZmxhc2tfbWFwX2RvbWFpbl9tc2kgKHN0 cnVjdCBkb21haW4gKmQsIGludCBpcnEsIGNvbnN0IHZvaWQgKmRhdGEsCj4gICNlbmRpZgo+ICB9 Cj4gIAo+IC1zdGF0aWMgdTMyIGZsYXNrX2lvbW11X3Jlc291cmNlX3VzZV9wZXJtKHZvaWQpCj4g K3N0YXRpYyB1MzIgZmxhc2tfaW9tbXVfcmVzb3VyY2VfdXNlX3Blcm0oc3RydWN0IGRvbWFpbiAq ZCkKCmNvbnN0PwoKV2l0aCB0aGVzZSBhZGp1c3RtZW50cwpSZXZpZXdlZC1ieTogSmFuIEJldWxp Y2ggPGpiZXVsaWNoQHN1c2UuY29tPgoKSmFuCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0 cy54ZW5wcm9qZWN0Lm9yZwpodHRwczovL2xpc3RzLnhlbnByb2plY3Qub3JnL21haWxtYW4vbGlz dGluZm8veGVuLWRldmVs