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 ws5-mx01.kavi.com (ws5-mx01.kavi.com [34.193.7.191]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A11D4C77B70 for ; Tue, 11 Apr 2023 13:48:03 +0000 (UTC) Received: from lists.oasis-open.org (oasis.ws5.connectedcommunity.org [10.110.1.242]) by ws5-mx01.kavi.com (Postfix) with ESMTP id E7BB2D56EC for ; Tue, 11 Apr 2023 13:48:02 +0000 (UTC) Received: from lists.oasis-open.org (oasis-open.org [10.110.1.242]) by lists.oasis-open.org (Postfix) with ESMTP id D8DDE9865F7 for ; Tue, 11 Apr 2023 13:48:02 +0000 (UTC) Received: from host09.ws5.connectedcommunity.org (host09.ws5.connectedcommunity.org [10.110.1.97]) by lists.oasis-open.org (Postfix) with QMQP id CD87E9863A7; Tue, 11 Apr 2023 13:48:02 +0000 (UTC) Mailing-List: contact virtio-dev-help@lists.oasis-open.org; run by ezmlm List-ID: Sender: Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: Received: from lists.oasis-open.org (oasis-open.org [10.110.1.242]) by lists.oasis-open.org (Postfix) with ESMTP id BC20198636E; Tue, 11 Apr 2023 13:47:56 +0000 (UTC) X-Virus-Scanned: amavisd-new at kavi.com ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=Pe8TOlkfhL3chE1Dv4+aFkptgC/mPLsOUl/dNWf80e0xrKlUXPfqucaqenJQELbVzDm+/bdsbQXrt717nTJcBN5Z8W5IesXROtPML6JL3WOc/Pr6pYvFy8cVH+//s+f4iVkLqf/jZNTD5hBnJvjxALJIiFM3aBbmFQdLCVq8dWoEKDUUTm4ZoAnGq4TtHpthJipiPmEMr1u9hc+oq3Kw8IZj1bXdQIZcHMfuV7eWx9Fb6nCTJel49+Wqlv4z8IWjYAecQPFXgGL4/EssAKm2R4zh3QtYckDnXYVfWoB59CUf8FVxyz9QQ48RAtmVTndU9ejmWJTrQ22O9GUEesu5Wg== 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=8aEqwnnbOiNRlMPswVB37T9qLKWbOrefOOGDl0lCI9A=; b=RkZPN6JmFyLIrMtF5Wc38U36AsJIm1kX4HIO2oRZMl//IbpIC+m+S5Y6fv1+3xMiio7QIEhBoFL10ruB8xfR0Lf3ovBxA96/SX/IidhmDt1cXeAn1OymLGaSbaSU1OaS1JdGNAm6j5ozJJP608RQ2y+mWjxJzks+gIpREy+gi5CM/uEdO0ozHmyRoVfEMQ08B2B43Jn+V41SYnzrjtwYtF1mbfmmxSObVRROsVN/t9fdgRM0ScmTs2ilGryIrDXAqLA8RCCje9eHgFEHVO/9PiWRaWDFmiUtE6HsjP36W78kocuLGySgfjlijFXHGL8huTxaIkQ7GERFHV1nuZUFWw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nvidia.com; dmarc=pass action=none header.from=nvidia.com; dkim=pass header.d=nvidia.com; arc=none Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nvidia.com; Message-ID: Date: Tue, 11 Apr 2023 09:47:50 -0400 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.9.1 To: "Michael S. Tsirkin" , Jason Wang Cc: virtio-dev@lists.oasis-open.org, cohuck@redhat.com, virtio-comment@lists.oasis-open.org, shahafs@nvidia.com, Satananda Burla References: <20230330225834.506969-1-parav@nvidia.com> <20230330225834.506969-9-parav@nvidia.com> <20230410021619-mutt-send-email-mst@kernel.org> <20230410055947-mutt-send-email-mst@kernel.org> <20230411025646-mutt-send-email-mst@kernel.org> Content-Language: en-US From: Parav Pandit In-Reply-To: <20230411025646-mutt-send-email-mst@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: BN9PR03CA0603.namprd03.prod.outlook.com (2603:10b6:408:106::8) To PH0PR12MB5481.namprd12.prod.outlook.com (2603:10b6:510:d4::15) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PH0PR12MB5481:EE_|DS0PR12MB7993:EE_ X-MS-Office365-Filtering-Correlation-Id: f3ceb2a5-928f-40a6-b80f-08db3a935946 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:PH0PR12MB5481.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230028)(4636009)(136003)(366004)(39860400002)(346002)(396003)(376002)(451199021)(478600001)(2906002)(6486002)(31686004)(186003)(6506007)(316002)(83380400001)(6512007)(53546011)(110136005)(2616005)(66946007)(8676002)(5660300002)(66476007)(41300700001)(66556008)(4744005)(4326008)(8936002)(38100700002)(36756003)(31696002)(86362001)(43740500002)(45980500001);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?YXZtMUFFclBRbFhBVldGTzhaVThYWGsvbFlHUW5Od0NnblNtQzlodjdKVVVG?= =?utf-8?B?SFFSbUNLOVRVRE1YekRSdWl5VDI2RThDZmg5QVpRNm5LenNKdWdNekJkNGZu?= =?utf-8?B?cVNWeGM4aFUxWWZkZHZVYm56RTY2SXlZZGQ2VHcrYUZocTJqVGg0UHlFcG5i?= =?utf-8?B?UTZOMjFRSWhSMUhRdHc0cHJoQVNSbVBvNGI1SHZPOHBEWFo2RWNKcFNDTS9Z?= =?utf-8?B?ZDZQYTV3TkU5d0lBZFJnWGlUc1NQcUVpVll2cCtJazU2Ly9DVkNDeGJYcVZF?= =?utf-8?B?Y0d1dytLNUpvNnIxd3N0dFkrcWQyb2NLRDNoejgyQmg2dVdnQVUrTXRMbWl4?= =?utf-8?B?N2JtRllNU0xBYU1rUm44VkhOS3p1Ukl3UVhpSlZ1RVhGZVVxM2NHbDdKcVhu?= =?utf-8?B?aS9RaStjTVZDWTQwNnRIeVVLeTF1VXk2eU9wNVBHa0lYcm5LeEQ4NjNVTDRG?= =?utf-8?B?NStxVW1lQ0lGNE16MFFObysrV3c5QS9uZWk3WWZYS29OLzdvaG53S2xPNTE0?= =?utf-8?B?WWZ6N2V0RTkyVW5zb0ExK2c0QU1rNTBFSkxlNC8rNEZBS1FzRmp4Umw1RXN1?= =?utf-8?B?ZENOTXJYZGJHeUtNVFZ1czNWdHlybHdkVVRzWUkzTFRkTk9CZmplNWpNZDVq?= =?utf-8?B?MU5qMUZqRzg0QisrRTgrQjZmUnVCdXA5Qjh6MUZSdWhtVVd2cFAvNjVTb0NE?= =?utf-8?B?czIzbDJFK0ltekk0VkZtQ0g1eFROTWdFTTFKUU5YRFNBZWxtVVl6SUdNM1Nx?= =?utf-8?B?b2srU1J0R3pHanMyN21UYUZNMmY3YWRWeGZPVHllVG5nOGJOUU0zRGdzU3NP?= =?utf-8?B?R0lZRjUxdkZJWlVOSnpMd21UenV5Yk5ZdlhYTCtEaEJReVkyVVMrZEVtZVV6?= =?utf-8?B?ZStVRUdlRHZBL0RYNC9kZDdrWUtQd1dubVNnT3dlU0JqVVh3bE1yc0s0NWts?= =?utf-8?B?SzQ5QVFCZDVkc0FXUXlxMkd6bVhEdi9JZGxaNnBIS3IrbGs4MEI3Ulg4UDdy?= =?utf-8?B?SEl0ZlpjZ3I0b3EvVHdrWTBPZndoOWV0TU9Xczh6cEdCRUVia2FRSGtmRmdY?= =?utf-8?B?cHMxTFZibTNINFpGMTkxeDdISUg2bnJ5dW9sQ3pmMWZMdHM3NUdyemFKSGJl?= =?utf-8?B?UEJXTDVydGF3cThVb2NJUzJvcXFLdXRkOVEvYzVHK1Q0Uld3MXFLTXVuQjEx?= =?utf-8?B?M2V3ejlJdGROaVIzcy8rcXJXU2hXTjNwTUcveTNFWE5NK3c1Mlp5UjNXNmlG?= =?utf-8?B?cXJZbWFrLzVuM1F4SUFJaFNwN2VmWmtjMTA1K0VNQmh0L1h6WnU1eGgrL1Bz?= =?utf-8?B?ZC9mRE9WVm5uV0RveFZMVnc0ZTB6dGkyWmpzS0NvZDBHalUzUzNxdzY1ZUJn?= =?utf-8?B?N1hYY3ZINWRKYXVtUENYRlFpWHlnSjF0WEthaVJneEVFV0JIT1dldFdtS1Nk?= =?utf-8?B?RnRKSWs1aWlJbXhZZ0kwZEpFa0Z1UTkxMXFPOU9kdWtqNW56WEZpR3ExV1dU?= =?utf-8?B?QU1yL2hsSjJRUVhrVS9ENXpCRkZXenFqTUJKSjA3TDdLYjJnZGNPZ1J2bnV1?= =?utf-8?B?SmhQN1NseGRBanhMREpBWXlGQ0JXR1Vta0NrcTdtbnFMTDVmS24xT2NyR0Nn?= =?utf-8?B?LzZVSDJIaVljSWJieDZPeFAzcVRQYk5ZalBuS00rMW15VGJyNWNjcURrdVhU?= =?utf-8?B?SEZaTzdwOC83UGRMb1pTbG9tcXNFTHhhb1ZvM1JKWDgrUjU4dXZ1QklDOW1u?= =?utf-8?B?WmdNYjlqbytXOUxZODZjT0h2N3laWXdOaGo4YjFMcm9BcjhNWTU0TWlGMFVy?= =?utf-8?B?ZHpJbGwwOFVGdC9iZkl5WlhQNXJuazNtMlF3b2lJUDFRR3NCZEJSaEdQbmY0?= =?utf-8?B?SXpkaWVZUW1PVnJGRE1RaUliYm1vSlp1U3owQXZMRXhpN0dlMXA0Ykh0WUll?= =?utf-8?B?dnVLVE50T3MxUlNEYVFOcUliQlpGcSs3cUV2YW9iWGJoWldKM0tONEo1MmNG?= =?utf-8?B?RjVuS05IR2ZsMFlKVnNoVC9xK25lNDRFZlpmS2RuSjFoQ0IyUkpOcndaaW41?= =?utf-8?B?VjZiaHJQWm5tZnJxd2JSSldSeFE4SjEraVhMSUZ3cHFDMEJmTHp1MGJEL2Uy?= =?utf-8?B?VGR1OHpCMWZkZndFMS9HaVkvK2tuTkRocW84dUt6UllRRU9IYVp6VmlnVExE?= =?utf-8?Q?+0tg0Tc8Vjm7F5GYp/TniYF6O6VnjuGjBOYPzim7PUaI?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: f3ceb2a5-928f-40a6-b80f-08db3a935946 X-MS-Exchange-CrossTenant-AuthSource: PH0PR12MB5481.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Apr 2023 13:47:53.7706 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: rs+K6dI2PqQ7DRh7+geaYymu2LCS6EX4C0WqYifXS9I80D3uW8VwRmuFzAmdPg9Ic7SZOG5BM3R8z4EL7zYubA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB7993 Subject: Re: [virtio-dev] [PATCH 08/11] transport-pci: Introduce virtio extended capability On 4/11/2023 3:00 AM, Michael S. Tsirkin wrote: >> I meant, it depends on the capability semantics. Both PASID and legacy >> MMIO don't need to be accessed by BIOS. We can't change legacy BIOS to >> use legacy MMIO bars. >> >> Thanks > > makes sense. > > > now, imagine someone building a new device. if existing drivers are not > a concern, it is possible to move capabilities all to extended space. is > that possible while keeping the bios working? > unlikely as bios is looking in the legacy section. New capabilities like legacy (and pasid) has no backward compat requirement from bios and drivers. so they can start from new. --------------------------------------------------------------------- To unsubscribe, e-mail: virtio-dev-unsubscribe@lists.oasis-open.org For additional commands, e-mail: virtio-dev-help@lists.oasis-open.org 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 ws5-mx01.kavi.com (ws5-mx01.kavi.com [34.193.7.191]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id AA2F0C77B6F for ; Tue, 11 Apr 2023 13:47:59 +0000 (UTC) Received: from lists.oasis-open.org (oasis.ws5.connectedcommunity.org [10.110.1.242]) by ws5-mx01.kavi.com (Postfix) with ESMTP id DE11FA7E48 for ; Tue, 11 Apr 2023 13:47:58 +0000 (UTC) Received: from lists.oasis-open.org (oasis-open.org [10.110.1.242]) by lists.oasis-open.org (Postfix) with ESMTP id D57C59863D1 for ; Tue, 11 Apr 2023 13:47:58 +0000 (UTC) Received: from host09.ws5.connectedcommunity.org (host09.ws5.connectedcommunity.org [10.110.1.97]) by lists.oasis-open.org (Postfix) with QMQP id CCE5898636D; Tue, 11 Apr 2023 13:47:58 +0000 (UTC) Mailing-List: contact virtio-comment-help@lists.oasis-open.org; run by ezmlm List-ID: Sender: Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: Received: from lists.oasis-open.org (oasis-open.org [10.110.1.242]) by lists.oasis-open.org (Postfix) with ESMTP id BC20198636E; Tue, 11 Apr 2023 13:47:56 +0000 (UTC) X-Virus-Scanned: amavisd-new at kavi.com ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=Pe8TOlkfhL3chE1Dv4+aFkptgC/mPLsOUl/dNWf80e0xrKlUXPfqucaqenJQELbVzDm+/bdsbQXrt717nTJcBN5Z8W5IesXROtPML6JL3WOc/Pr6pYvFy8cVH+//s+f4iVkLqf/jZNTD5hBnJvjxALJIiFM3aBbmFQdLCVq8dWoEKDUUTm4ZoAnGq4TtHpthJipiPmEMr1u9hc+oq3Kw8IZj1bXdQIZcHMfuV7eWx9Fb6nCTJel49+Wqlv4z8IWjYAecQPFXgGL4/EssAKm2R4zh3QtYckDnXYVfWoB59CUf8FVxyz9QQ48RAtmVTndU9ejmWJTrQ22O9GUEesu5Wg== 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=8aEqwnnbOiNRlMPswVB37T9qLKWbOrefOOGDl0lCI9A=; b=RkZPN6JmFyLIrMtF5Wc38U36AsJIm1kX4HIO2oRZMl//IbpIC+m+S5Y6fv1+3xMiio7QIEhBoFL10ruB8xfR0Lf3ovBxA96/SX/IidhmDt1cXeAn1OymLGaSbaSU1OaS1JdGNAm6j5ozJJP608RQ2y+mWjxJzks+gIpREy+gi5CM/uEdO0ozHmyRoVfEMQ08B2B43Jn+V41SYnzrjtwYtF1mbfmmxSObVRROsVN/t9fdgRM0ScmTs2ilGryIrDXAqLA8RCCje9eHgFEHVO/9PiWRaWDFmiUtE6HsjP36W78kocuLGySgfjlijFXHGL8huTxaIkQ7GERFHV1nuZUFWw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nvidia.com; dmarc=pass action=none header.from=nvidia.com; dkim=pass header.d=nvidia.com; arc=none Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nvidia.com; Message-ID: Date: Tue, 11 Apr 2023 09:47:50 -0400 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.9.1 To: "Michael S. Tsirkin" , Jason Wang Cc: virtio-dev@lists.oasis-open.org, cohuck@redhat.com, virtio-comment@lists.oasis-open.org, shahafs@nvidia.com, Satananda Burla References: <20230330225834.506969-1-parav@nvidia.com> <20230330225834.506969-9-parav@nvidia.com> <20230410021619-mutt-send-email-mst@kernel.org> <20230410055947-mutt-send-email-mst@kernel.org> <20230411025646-mutt-send-email-mst@kernel.org> Content-Language: en-US From: Parav Pandit In-Reply-To: <20230411025646-mutt-send-email-mst@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: BN9PR03CA0603.namprd03.prod.outlook.com (2603:10b6:408:106::8) To PH0PR12MB5481.namprd12.prod.outlook.com (2603:10b6:510:d4::15) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PH0PR12MB5481:EE_|DS0PR12MB7993:EE_ X-MS-Office365-Filtering-Correlation-Id: f3ceb2a5-928f-40a6-b80f-08db3a935946 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:PH0PR12MB5481.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230028)(4636009)(136003)(366004)(39860400002)(346002)(396003)(376002)(451199021)(478600001)(2906002)(6486002)(31686004)(186003)(6506007)(316002)(83380400001)(6512007)(53546011)(110136005)(2616005)(66946007)(8676002)(5660300002)(66476007)(41300700001)(66556008)(4744005)(4326008)(8936002)(38100700002)(36756003)(31696002)(86362001)(43740500002)(45980500001);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?YXZtMUFFclBRbFhBVldGTzhaVThYWGsvbFlHUW5Od0NnblNtQzlodjdKVVVG?= =?utf-8?B?SFFSbUNLOVRVRE1YekRSdWl5VDI2RThDZmg5QVpRNm5LenNKdWdNekJkNGZu?= =?utf-8?B?cVNWeGM4aFUxWWZkZHZVYm56RTY2SXlZZGQ2VHcrYUZocTJqVGg0UHlFcG5i?= =?utf-8?B?UTZOMjFRSWhSMUhRdHc0cHJoQVNSbVBvNGI1SHZPOHBEWFo2RWNKcFNDTS9Z?= =?utf-8?B?ZDZQYTV3TkU5d0lBZFJnWGlUc1NQcUVpVll2cCtJazU2Ly9DVkNDeGJYcVZF?= =?utf-8?B?Y0d1dytLNUpvNnIxd3N0dFkrcWQyb2NLRDNoejgyQmg2dVdnQVUrTXRMbWl4?= =?utf-8?B?N2JtRllNU0xBYU1rUm44VkhOS3p1Ukl3UVhpSlZ1RVhGZVVxM2NHbDdKcVhu?= =?utf-8?B?aS9RaStjTVZDWTQwNnRIeVVLeTF1VXk2eU9wNVBHa0lYcm5LeEQ4NjNVTDRG?= =?utf-8?B?NStxVW1lQ0lGNE16MFFObysrV3c5QS9uZWk3WWZYS29OLzdvaG53S2xPNTE0?= =?utf-8?B?WWZ6N2V0RTkyVW5zb0ExK2c0QU1rNTBFSkxlNC8rNEZBS1FzRmp4Umw1RXN1?= =?utf-8?B?ZENOTXJYZGJHeUtNVFZ1czNWdHlybHdkVVRzWUkzTFRkTk9CZmplNWpNZDVq?= =?utf-8?B?MU5qMUZqRzg0QisrRTgrQjZmUnVCdXA5Qjh6MUZSdWhtVVd2cFAvNjVTb0NE?= =?utf-8?B?czIzbDJFK0ltekk0VkZtQ0g1eFROTWdFTTFKUU5YRFNBZWxtVVl6SUdNM1Nx?= =?utf-8?B?b2srU1J0R3pHanMyN21UYUZNMmY3YWRWeGZPVHllVG5nOGJOUU0zRGdzU3NP?= =?utf-8?B?R0lZRjUxdkZJWlVOSnpMd21UenV5Yk5ZdlhYTCtEaEJReVkyVVMrZEVtZVV6?= =?utf-8?B?ZStVRUdlRHZBL0RYNC9kZDdrWUtQd1dubVNnT3dlU0JqVVh3bE1yc0s0NWts?= =?utf-8?B?SzQ5QVFCZDVkc0FXUXlxMkd6bVhEdi9JZGxaNnBIS3IrbGs4MEI3Ulg4UDdy?= =?utf-8?B?SEl0ZlpjZ3I0b3EvVHdrWTBPZndoOWV0TU9Xczh6cEdCRUVia2FRSGtmRmdY?= =?utf-8?B?cHMxTFZibTNINFpGMTkxeDdISUg2bnJ5dW9sQ3pmMWZMdHM3NUdyemFKSGJl?= =?utf-8?B?UEJXTDVydGF3cThVb2NJUzJvcXFLdXRkOVEvYzVHK1Q0Uld3MXFLTXVuQjEx?= =?utf-8?B?M2V3ejlJdGROaVIzcy8rcXJXU2hXTjNwTUcveTNFWE5NK3c1Mlp5UjNXNmlG?= =?utf-8?B?cXJZbWFrLzVuM1F4SUFJaFNwN2VmWmtjMTA1K0VNQmh0L1h6WnU1eGgrL1Bz?= =?utf-8?B?ZC9mRE9WVm5uV0RveFZMVnc0ZTB6dGkyWmpzS0NvZDBHalUzUzNxdzY1ZUJn?= =?utf-8?B?N1hYY3ZINWRKYXVtUENYRlFpWHlnSjF0WEthaVJneEVFV0JIT1dldFdtS1Nk?= =?utf-8?B?RnRKSWs1aWlJbXhZZ0kwZEpFa0Z1UTkxMXFPOU9kdWtqNW56WEZpR3ExV1dU?= =?utf-8?B?QU1yL2hsSjJRUVhrVS9ENXpCRkZXenFqTUJKSjA3TDdLYjJnZGNPZ1J2bnV1?= =?utf-8?B?SmhQN1NseGRBanhMREpBWXlGQ0JXR1Vta0NrcTdtbnFMTDVmS24xT2NyR0Nn?= =?utf-8?B?LzZVSDJIaVljSWJieDZPeFAzcVRQYk5ZalBuS00rMW15VGJyNWNjcURrdVhU?= =?utf-8?B?SEZaTzdwOC83UGRMb1pTbG9tcXNFTHhhb1ZvM1JKWDgrUjU4dXZ1QklDOW1u?= =?utf-8?B?WmdNYjlqbytXOUxZODZjT0h2N3laWXdOaGo4YjFMcm9BcjhNWTU0TWlGMFVy?= =?utf-8?B?ZHpJbGwwOFVGdC9iZkl5WlhQNXJuazNtMlF3b2lJUDFRR3NCZEJSaEdQbmY0?= =?utf-8?B?SXpkaWVZUW1PVnJGRE1RaUliYm1vSlp1U3owQXZMRXhpN0dlMXA0Ykh0WUll?= =?utf-8?B?dnVLVE50T3MxUlNEYVFOcUliQlpGcSs3cUV2YW9iWGJoWldKM0tONEo1MmNG?= =?utf-8?B?RjVuS05IR2ZsMFlKVnNoVC9xK25lNDRFZlpmS2RuSjFoQ0IyUkpOcndaaW41?= =?utf-8?B?VjZiaHJQWm5tZnJxd2JSSldSeFE4SjEraVhMSUZ3cHFDMEJmTHp1MGJEL2Uy?= =?utf-8?B?VGR1OHpCMWZkZndFMS9HaVkvK2tuTkRocW84dUt6UllRRU9IYVp6VmlnVExE?= =?utf-8?Q?+0tg0Tc8Vjm7F5GYp/TniYF6O6VnjuGjBOYPzim7PUaI?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: f3ceb2a5-928f-40a6-b80f-08db3a935946 X-MS-Exchange-CrossTenant-AuthSource: PH0PR12MB5481.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Apr 2023 13:47:53.7706 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: rs+K6dI2PqQ7DRh7+geaYymu2LCS6EX4C0WqYifXS9I80D3uW8VwRmuFzAmdPg9Ic7SZOG5BM3R8z4EL7zYubA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB7993 Subject: [virtio-comment] Re: [virtio-dev] [PATCH 08/11] transport-pci: Introduce virtio extended capability On 4/11/2023 3:00 AM, Michael S. Tsirkin wrote: >> I meant, it depends on the capability semantics. Both PASID and legacy >> MMIO don't need to be accessed by BIOS. We can't change legacy BIOS to >> use legacy MMIO bars. >> >> Thanks > > makes sense. > > > now, imagine someone building a new device. if existing drivers are not > a concern, it is possible to move capabilities all to extended space. is > that possible while keeping the bios working? > unlikely as bios is looking in the legacy section. New capabilities like legacy (and pasid) has no backward compat requirement from bios and drivers. so they can start from new. This publicly archived list offers a means to provide input to the OASIS Virtual I/O Device (VIRTIO) TC. In order to verify user consent to the Feedback License terms and to minimize spam in the list archive, subscription is required before posting. Subscribe: virtio-comment-subscribe@lists.oasis-open.org Unsubscribe: virtio-comment-unsubscribe@lists.oasis-open.org List help: virtio-comment-help@lists.oasis-open.org List archive: https://lists.oasis-open.org/archives/virtio-comment/ Feedback License: https://www.oasis-open.org/who/ipr/feedback_license.pdf List Guidelines: https://www.oasis-open.org/policies-guidelines/mailing-lists Committee: https://www.oasis-open.org/committees/virtio/ Join OASIS: https://www.oasis-open.org/join/