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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A0240C4332F for ; Fri, 29 Apr 2022 01:11:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1353887AbiD2BOy (ORCPT ); Thu, 28 Apr 2022 21:14:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58130 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343714AbiD2BOw (ORCPT ); Thu, 28 Apr 2022 21:14:52 -0400 Received: from na01-obe.outbound.protection.outlook.com (mail-centralusazon11021016.outbound.protection.outlook.com [52.101.62.16]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 62DF336300; Thu, 28 Apr 2022 18:11:33 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=XR6gj0qJrK6keZixNdxNcD0tA17skbIQffdjT1DYwuPNNLFyxo+G4YQheWpEFtkL82Yque8lJoViVOPHnri0K/jd4SyGHGfkLijL76Gdrvd87aJHKvf7hi6C7x+ipTSGbiU/R4B2r9Bfw+UDsWGEMAGoMXNLfjZumlArI9Ohv8cNGabVKntkhL8PdLxfKrS0z5LjlzZlD4KmKP+a/V6h5M4Kb68wkPAP+PwPZFaECKDGvbqQp4or/ZUEr4s0f0MqLV5ulnjMc1FSjvHjrdh2Lc1F6AqT5JydB+s7sSBPJt3dqt/VJd6xkwVExOCwpcpnf0+gMFJf7PMjWXBmSWD18g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=+G+yoTaJxxYaXCOajdNh8GN4abo6IhHLKfS5ghOvn2E=; b=ZN2uyT4hEcYYowy3PkIhAtqrVR+Nf3zQAv+KdY4jkhCfJjm66xN1kp/o38jR0OAFej09kDv6ZwdsM95ceoDtuUPBVo1OVqJyGrLejASZzlBFHhlWk9/3FChYQnPtxDqGVHqzuOKl7nH0Ms22K9MCSThe9RuelU9X4KZdTiIrqmuv2HA/459fh5Tm1UJ80iba9iqUJfX3VK6XcvtBlLdMo2rnSMwXigr87XIAun0yI0qShHX65FroQDRv2IE0DuTmIj3wntiVW4II1CWpdIj3Etb0oglSvOyp5iduET6160fBmCwSDLKBrEBTZ4EeLYPAi++JxfNLwAkTV1EM3XToDw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=microsoft.com; dmarc=pass action=none header.from=microsoft.com; dkim=pass header.d=microsoft.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=+G+yoTaJxxYaXCOajdNh8GN4abo6IhHLKfS5ghOvn2E=; b=b9uXEunWGmz74y5AApbiVpC0coXauLGQ3TqUg5Al8IDHMhrNYs+qfe9Jxm901wXEjqRIw99luFCxsBi9mM7psWTvDB9xd3rXtVq0gESZBVDSyTDoqYSMM3RqLeK7MDz0hWLflpKbi9ZFDVxXsLrolujKaa4mCSw3vrfVuBeR62U= Received: from BYAPR21MB1270.namprd21.prod.outlook.com (2603:10b6:a03:105::15) by SJ0PR21MB1967.namprd21.prod.outlook.com (2603:10b6:a03:29e::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5227.6; Fri, 29 Apr 2022 01:11:29 +0000 Received: from BYAPR21MB1270.namprd21.prod.outlook.com ([fe80::2823:3bd7:8a28:4203]) by BYAPR21MB1270.namprd21.prod.outlook.com ([fe80::2823:3bd7:8a28:4203%7]) with mapi id 15.20.5227.004; Fri, 29 Apr 2022 01:11:29 +0000 From: Dexuan Cui To: Jake Oshins , "bhelgaas@google.com" , Bjorn Helgaas , Lorenzo Pieralisi , "wei.liu@kernel.org" CC: Alex Williamson , KY Srinivasan , Haiyang Zhang , Stephen Hemminger , "linux-hyperv@vger.kernel.org" , "linux-pci@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "Michael Kelley (LINUX)" , "robh@kernel.org" , "kw@linux.com" , "kvm@vger.kernel.org" Subject: RE: [EXTERNAL] Re: [PATCH] PCI: hv: Do not set PCI_COMMAND_MEMORY to reduce VM boot time Thread-Topic: [EXTERNAL] Re: [PATCH] PCI: hv: Do not set PCI_COMMAND_MEMORY to reduce VM boot time Thread-Index: AQHYWZvqMSeNB9FR00eBGiDkKFjxX60CjztggAMlSICAAAGe8IAAXyhA Date: Fri, 29 Apr 2022 01:11:29 +0000 Message-ID: References: <20220428191213.GA36573@bhelgaas> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: msip_labels: MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_ActionId=dd106178-eb74-40c5-95f5-d84ebf71c7f0;MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_ContentBits=0;MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_Enabled=true;MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_Method=Standard;MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_Name=Internal;MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_SetDate=2022-04-28T19:17:59Z;MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_SiteId=72f988bf-86f1-41af-91ab-2d7cd011db47; authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=microsoft.com; x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: d4ae4cea-a403-4d03-91f8-08da297d30c2 x-ms-traffictypediagnostic: SJ0PR21MB1967:EE_ x-microsoft-antispam-prvs: x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 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 x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:BYAPR21MB1270.namprd21.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230001)(4636009)(366004)(451199009)(4326008)(38070700005)(86362001)(122000001)(76116006)(66946007)(38100700002)(71200400001)(8936002)(55016003)(7416002)(52536014)(8990500004)(5660300002)(4744005)(2906002)(186003)(33656002)(8676002)(66556008)(66476007)(64756008)(66446008)(966005)(110136005)(6506007)(7696005)(9686003)(316002)(54906003)(508600001)(26005)(10290500003)(82950400001)(82960400001);DIR:OUT;SFP:1102; x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: =?us-ascii?Q?0pVIHjfjdSOnN4kK2WjGUOgT/cQ2LqkD186/UOp7TuQZ2eiGur8nvC4uUJGZ?= =?us-ascii?Q?FbzHbh2/tyjPwkYNDMA0zmcKmGBbuRL4L+LHtn7alSN2uG84JvsaYH6Bo7pm?= =?us-ascii?Q?69oszfo/PiFrkZmVsc5ZlCzPIaZPNEMsT20xTXcLgKkvJY35QCARhgJB6Tx0?= =?us-ascii?Q?zC7SfUvznbRr+LQ9iif8UPYvkC2GNv2JBvOIr8T9K9NrgomOuaoScy4scJAS?= =?us-ascii?Q?fx4EA+fOIBMTQrEbI9bBb9RBpG87x+y7i4IljLQN6A0heuPFD7aSniGkbQZa?= =?us-ascii?Q?LfzemmiMD2vHC1BDmYSojbAY7KwbufkaRHLEJZnO3cPwrvGK5IWEr/unjtoj?= =?us-ascii?Q?5/pM1QBu/PnFtq2qmfXpAeZwcBMGUxXscncbe0JpqIRsaRVtjEgt74BrAt9O?= =?us-ascii?Q?bjvYrseCFMVLB9g7/3DeNKJ9NZs3Kg2qFNEElzcWc4DyO3mmim+3s7IzQK6S?= =?us-ascii?Q?0sEFI5E6L8bGADQ5gZkjE7BpaZ8jV8zkE7le/z0XfaDbkxdBlS1JD06MouIj?= =?us-ascii?Q?CtKilw4y4psdnvKzn7QZNE7Ou69JLS5sKcxil4qzQmUpUHXMhIKsLgNosd+v?= =?us-ascii?Q?utpovNR/mTDwVYWke0ArV4ckgVV3t3LKEP5Cd8HcitzqnoYlOma29hfkYIsD?= =?us-ascii?Q?ZjMAhPGhndkGoyuiMRdCIIcEnyFhq5/SwrkH6GiJ6tGfOJMf4wcjjIkKxQIE?= =?us-ascii?Q?RBt+FkpApaKAcYOeUieCEo8jatbU+qiIS2D3cllh4KDjF+6sG4j2qAqZC56F?= =?us-ascii?Q?MbWwHCkI+ZT/+QcL2NeRasOPjuDmDNia9WSme42gffEHLP1LbmWwQDwE33hY?= =?us-ascii?Q?89j6QEiiavas6Q5rqn8NFL+3AFq3SuF6EMBI/yMzW6MGAFG8OZgmY/9NZIX8?= =?us-ascii?Q?433OpDIItXktGEPZvQjiF3XSG1HqeCZdLlg0oe0YzKlF0Ina6ddVDKBMdBvZ?= =?us-ascii?Q?XZ7uOhrwL7DnadqxNYz0Sa22gk0Ppe2gtcaYRCuwJ8RHrcOVUNoEtFcF0udR?= =?us-ascii?Q?PrvkuOEMZ5mM+SjVaNY9dcAkEYM0W1Oy02ss5PTEMEXeTSJ+cfR+Q3liaSyV?= =?us-ascii?Q?NR/tFdFFL30C13UHWnZ8rywZqE1rw+ehEtJmjdFvI3R1M/kumUnw7/DbuRdZ?= =?us-ascii?Q?Tr/gvAOao3jxyTuaQTUsVQpMgJzIA6kb8bbbON9Rdjy2qYhXr/BKATzqu8d2?= =?us-ascii?Q?HkUbpRrJnXY8KG/o5oVZp6lnnfpJxGP+JDv59yhsWuHaB5jkyFZDV8+cBDv4?= =?us-ascii?Q?wwTIsfUfEvtvwWf3YUXpLHg9xr0XrCwVbNjlNNUUo2VP3snknr3a3SocRtHC?= =?us-ascii?Q?bpIGM6IuJSM87UXu7NVYReKSRN2PqhXF0F7jxHAdUaBWxsQr3Kj23jcDAI5V?= =?us-ascii?Q?ttW/PIaaYpGKabUxlHK5nJ5tWqkdxCvhVsgJp2H4sa0NSPhfx9J0O8zUi8fM?= =?us-ascii?Q?IY4M4UWTGRuRDj9faenYQT5RXW8bWTwttYKwdtst/uOgB7zWU4iipsbZ2Cnz?= =?us-ascii?Q?h0lrieEXoSLP6rHAkppq05OxJxXmSJCQyKY8Us39VcS8xeqKxa4gzlPhGdDw?= =?us-ascii?Q?Rif1vqRCuSWgngBzoO3XkUKBO3Uyyb1X3DcnC2nnm1/djmnvZ7l5/SmzqbwC?= =?us-ascii?Q?EzUm7JsD3SX5onRdh2Ochhv9So3guL8Bm/p/W3UEDcztv5wncmG5B+WVmuRb?= =?us-ascii?Q?KnEgb7IVkVu3uMum5tgHTUk4PNilgh9M+FoP5QRBcxyuLp6OLMspGraV6nMw?= =?us-ascii?Q?fPkfp/gb/Q=3D=3D?= Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: BYAPR21MB1270.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: d4ae4cea-a403-4d03-91f8-08da297d30c2 X-MS-Exchange-CrossTenant-originalarrivaltime: 29 Apr 2022 01:11:29.1705 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: 68KXXvO/23xKFOHKyBXzTnzBg9jLewehlDt86KBLWzHkpo2VGrNPQAK9/C/pb86BFHOnqHm6Wqi17Fo1mpE7cw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ0PR21MB1967 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > From: Jake Oshins > Sent: Thursday, April 28, 2022 12:21 PM > ...=20 > Thanks everybody for responding to my questions. >=20 > Bjorn, from your response, it sounds like this change is safe until some = possible > future which new functionality is introduced for rebalancing resources. >=20 > Dexuan, I don't have any further objection to the patch. >=20 > -- Jake Oshins Thank all for the informative discussion!! @Bjorn, Lorenzo: can this patch go through the hyperv tree? I see some recent pci-hyperv commits in the hyperv tree: https://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux.git