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Tsirkin" , =?UTF-8?Q?Alex_Benn=C3=A9e?= , Akihiko Odaki , =?UTF-8?Q?Marc-Andr=C3=A9_Lureau?= , Stefano Garzarella , Gerd Hoffmann , David Airlie , Peter Maydell Cc: qemu-devel@nongnu.org, virtio-comment@lists.oasis-open.org, dri-devel@lists.freedesktop.org, virtualization@lists.linux.dev, Honglei Huang , Huang Rui References: Content-Language: en-US From: "Huang, Honglei" In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: KU2P306CA0064.MYSP306.PROD.OUTLOOK.COM (2603:1096:d10:39::15) To CY8PR12MB7170.namprd12.prod.outlook.com (2603:10b6:930:5a::18) Precedence: bulk X-Mailing-List: virtualization@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY8PR12MB7170:EE_|SA1PR12MB8857:EE_ X-MS-Office365-Filtering-Correlation-Id: 742fa4cd-7b43-4035-d8a1-08df0d6b3995 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|23010399003|1800799024|376014|7416014|366016|10067099003|22082099003|18002099003|4143699003|11063799006|56012099006; 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I posted a ROCm over >> virtio >> implementation to virglrenderer nine months ago (MR !1568 [1]). The ROCm >> side has >> been supportted by ROCm offical. >> >> Current implementation is a virtio gpu context type capset handled inside >> virglrenderer, sharing the display path. That's an awkward fit, many >> compute GPUs have no display engine at all. > > The headless context type is totally fine with virtio-gpu. For example, > ChoromeOS wirh crosvm disables display entirely even on guest side by > building virtio-gpu kernel driver without KMS support. This is something > to improve in QEMU to make it work without GL context. > Thanks for the inforamtion. It's great to know that headless contexts are fine and that ChromeOS already has a working model for this. The changes to the ROCM native context from QEMU are not much, maybe we can leverage the changes made from ChromeOS to assist ROCm. Regaeds, Honglei