From patchwork Sat Dec 7 10:50:20 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Zhang, Julia" X-Patchwork-Id: 13898239 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id CBCCCE7717B for ; Sat, 7 Dec 2024 10:51:55 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.850599.1264991 (Exim 4.92) (envelope-from ) id 1tJsPD-0007AD-8x; Sat, 07 Dec 2024 10:51:23 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 850599.1264991; Sat, 07 Dec 2024 10:51:23 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1tJsPD-0007A6-6G; Sat, 07 Dec 2024 10:51:23 +0000 Received: by outflank-mailman (input) for mailman id 850599; Sat, 07 Dec 2024 10:51:21 +0000 Received: from se1-gles-sth1-in.inumbo.com ([159.253.27.254] helo=se1-gles-sth1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1tJsPB-0007A0-5J for xen-devel@lists.xenproject.org; Sat, 07 Dec 2024 10:51:21 +0000 Received: from NAM11-DM6-obe.outbound.protection.outlook.com (mail-dm6nam11on2062b.outbound.protection.outlook.com [2a01:111:f403:2415::62b]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id 30085372-b489-11ef-a0d5-8be0dac302b0; Sat, 07 Dec 2024 11:51:19 +0100 (CET) Received: from CH5PR05CA0024.namprd05.prod.outlook.com (2603:10b6:610:1f0::29) by BY5PR12MB4148.namprd12.prod.outlook.com (2603:10b6:a03:208::23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8230.11; Sat, 7 Dec 2024 10:51:14 +0000 Received: from CH2PEPF0000013D.namprd02.prod.outlook.com (2603:10b6:610:1f0:cafe::d5) by CH5PR05CA0024.outlook.office365.com (2603:10b6:610:1f0::29) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.20.8251.11 via Frontend Transport; Sat, 7 Dec 2024 10:51:14 +0000 Received: from SATLEXMB04.amd.com (165.204.84.17) by CH2PEPF0000013D.mail.protection.outlook.com (10.167.244.69) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.8230.7 via Frontend Transport; Sat, 7 Dec 2024 10:51:13 +0000 Received: from jenkins-julia.amd.com (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Sat, 7 Dec 2024 04:51:08 -0600 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" X-Inumbo-ID: 30085372-b489-11ef-a0d5-8be0dac302b0 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=mZLARswOq4vxTYQ5L/ALSx77d9uZfmI6AbW6OR4Er8WLOArUXFO0hX5DU9facAqstLizPTHp5VwQcxdc13/sgoRr/O9ButblsETIM5FjoJmbIFS+v/v6MTF5GnVI2CA85rOvUizSpUjKDOP0ZelfOiyZ9SoOlCdCeVELJXTq8/VWfq6nKvdrgq8vCWdidkvPXNcwC9m6aHjmw1Ge0eNygotFl7ZpRCKkPd5W39bEBUPydqObQRkVk07vIbuvvGL93l56lVK2wOXym6zwh2DU6LcpzIB2AVjvVgr+ucWgzAebMCCByAEukGGUFHb/Hujuemb+Kjl9dddUHGrVmRT1ig== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; 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=j3NJSEdVo5KlzEiay2XUDjqLBYgfkv1hWCm9vS9ugrs=; b=XQbXfEQnMn0L+hqWbQVA+i1IDB+h2VQrfxIbPokL/Q0lShXSJhAvuHgx5RYdEiGpuI94oBlxPKkLeRndjwbha9F/JogRHIKChNbZLKeNg1ZaPouD6kA81gWMADB45AIyuv9kyybfzhwHB1GPMmQWMZaAd3dIO5YmUUyPhGQQGw8DHCQI0hqfXIwNSQ20RTctnX5+eDnf0P9Rt3dSCqgCK4++hR1Wjfw5e5M6INdxd5t/HrsTjU+W1LpUo5b2BxVtBjtNlp5tZFDT4oVf61VX8F7A0xa3Zokhn908A+issxIxeEaKhlj2US4Vp0qOoeU+q9/n2R2kJNJSDyQb2upbPA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=redhat.com smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=j3NJSEdVo5KlzEiay2XUDjqLBYgfkv1hWCm9vS9ugrs=; b=BDusMLbwmyovvjH3FCjJApxWII0hXqBuGEqabqQq33Wa0NK7pp5hFPLUFYAg1MG/cdu0CDTvcRuBQwGTbyVjrR61Ti7ylC85G9dgMKx9vnDTh+jlycaxCAQhSnAWMast48IKDpgvZ+veYZDaUv7fJRkr3HhJYwbmRxYeMROrpa0= X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C From: Julia Zhang To: David Airlie , Gerd Hoffmann , Gurchetan Singh , Chia-I Wu , , , Juergen Gross , Stefano Stabellini , Oleksandr Tyshchenko , CC: Alex Deucher , =?utf-8?q?Christian_K=C3=B6nig?= , Daniel Vetter , Chen Jiqian , Huang Rui , Penny Zheng , Zhu Lingshan , Anthony PERARD , =?utf-8?q?Roger_Pau_Monn=C3=A9?= , Jan Beulich , Paul Durrant , Julia Zhang Subject: [PATCH 0/3] virtgpu: check if P2P is possiable or not Date: Sat, 7 Dec 2024 18:50:20 +0800 Message-ID: <20241207105023.542399-1-julia.zhang@amd.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH2PEPF0000013D:EE_|BY5PR12MB4148:EE_ X-MS-Office365-Filtering-Correlation-Id: e51dea4b-ee44-41df-ebbf-08dd16ad11c8 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700013|1800799024|82310400026|7416014|376014|921020; X-Microsoft-Antispam-Message-Info: YFw/sjdbC4eGfb4g5dXVndGFO2L7uImwUJh7oHYCsJsfdwT79Q9INuj3739DV/Pa8HVNLZY8szM8uwH1ZwMqywy2B5I8HTE0AWiMws2A8r+ICBNq7QBBmiVOxbe1tqagwffnN0DZvHszJRZvqPxMZEVXgihgdhwGoVCziMf7c8AYBlPvWANc7KbyiLzoYgUSPHafUYOJeoFb0/Za3HjMy3PoqzBteHqJrp6xE+3TvAQSBFyEEwisEZFQTkMLIb//N2CJvr856XTijzc0NB4u0zccr2fw6wteXEK279gh/uUzZ//6Qpb9EMu4Wg53Fuyd8VG9tdrwNH+EK1mtGuu5gAYkoUt3mOpb+KQJttzHql/9PpvSXAjMlPLnz+KnFcff9hmnDrCrSO9TuGmuUUl/WHu/GsujrEO98M3HTnPyypJpsghiFhJfq1jzU22dLhUFdVfRSu+Pzb/YkzG/scZjsraKqUQJhzZvuxmUzI5DptNq/6aLO0QrClZ1sTh+g4QZNavIPbcbyngdzamnMq5j8zIg+Fedt3Zd04IsldfNnp0UxIHOY33wzTXOrOz3Y/ipIEBu+Ci2oh4INR5CS3hqzDDAGGSveS3NAimtp1tYz3WDVnVT0F9DjXiAOnVH9MW43xkzbfhOpadXSSE5k2kHjb0dpuDWswG9x1m/1futWep5fJD7zDwNrY4WZVo8YLFQm7uWwMHKebIX7lKeg/nl24KGV1E+OtV4dvwG8asmZUHtkq50Lw1djYhVy9RplmOSDPEPPp5p0E9wP8mesnyC5hVssTrw+Rj1dsn+aYqaxoozJVc8LdS7mE39U14Q8TgH6xZ0OeJEDK6AECVmvDq5yPomM5RqHJBjvyXYdqIHLhHwQ3cJO4cv7XEfXu9i0aYOtVJvf5+HoS+UECkT481tmb7UrbnyiTMvRDElpEEPdNxpJmBoU0yHGxxwvrgOd6efg7kKrsxY43n64exIJZZTtU/cPFMxExrttK1cCVtIS59+h7L2FL0zxEji4Gbbt+dCeWYuOFKokLSlTe2x211ZOXXNOiVCFLUyB52cKhRnjrCZum2PzA3DwmI5Krp6SvYUL6KMODM5g2BmEWLmo7reU373MD6qrI4zvsZMzDhM4dkkbr3RJIsgAyyX4VhRzOHCUI8pdPgR38VTaOQN6r6vfPgc5v1b3BAAHL7DizpQGSYtBbfQ1fKRTdAS6OtcDpFknWDUb6c9+RVXvuAetzj4wcHXGAJsnetkufGtNijoOJJB4dWmH7rT2yjvYuR70DQoTeQTyF5ZtzZW6NDcqJ7qQzG06y+kEbj9UGGDIpkrTQ89nkMXlyqKk8AkdXXtKRnec8HyBU7tmZr7NnUFi0MkhwgAgiHHvtNAXUNeUBMaIrkqTcRkxvbmW0F21JTfbwEixNfXchqhP6qc+Dj4oMmu9uojn3tE8+tWvwjqtZSqhAIh72urGZHbcJBybq9UngI+axNsetqo8p4msM5YPSJ1gg== X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(36860700013)(1800799024)(82310400026)(7416014)(376014)(921020);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Dec 2024 10:51:13.9074 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: e51dea4b-ee44-41df-ebbf-08dd16ad11c8 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CH2PEPF0000013D.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY5PR12MB4148 To implement dGPU prime feature, virtgpu needs to import/export buffer between virtio iGPU and passthrough dGPU. Before that, virtgpu should check if P2P is possible or not. But calling function pci_p2pdma_distance in guest VM will only get virtual p2pdma_distance instead of real physical p2pdma_distance. So this series introduce an implementation of virtgpu device_attach callback to get p2pdma_distance. And also adds a new virtgpu command to pass PCI notations from guest to host and a new xen privcmd to get physical p2pdma_distance according to the PCI notations in host. Julia Zhang (3): xen:get p2pdma_distance virtgpu: get p2pdma_distance drm/virtio: Implement device_attach drivers/gpu/drm/virtio/virtgpu_drv.h | 17 ++++++++ drivers/gpu/drm/virtio/virtgpu_prime.c | 59 +++++++++++++++++++++++++- drivers/gpu/drm/virtio/virtgpu_vq.c | 53 +++++++++++++++++++++++ drivers/xen/privcmd.c | 42 ++++++++++++++++++ include/uapi/linux/virtio_gpu.h | 19 +++++++++ include/uapi/xen/privcmd.h | 12 ++++++ 6 files changed, 201 insertions(+), 1 deletion(-)