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To: Oleksandr Andrushchenko CC: "xen-devel@lists.xenproject.org" , =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= References: <30955a5b-ee46-60d7-ae56-23dc7c91008c@epam.com> From: Jan Beulich Message-ID: <0aa4bf61-e08f-6da0-1cda-48e61bf876af@suse.com> Date: Thu, 10 Jun 2021 12:48:16 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 In-Reply-To: <30955a5b-ee46-60d7-ae56-23dc7c91008c@epam.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable X-Originating-IP: [37.24.206.209] X-ClientProxiedBy: PR3P189CA0074.EURP189.PROD.OUTLOOK.COM (2603:10a6:102:b4::19) To VI1PR04MB5600.eurprd04.prod.outlook.com (2603:10a6:803:e7::16) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: b1fb4bae-11d6-478c-265d-08d92bfd40dd X-MS-TrafficTypeDiagnostic: VI1PR04MB5165: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:9508; 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X-MS-Exchange-AntiSpam-MessageData: =?us-ascii?Q?N69YkhDnlq3UA4BdhBl9fX1EPsXGKo5K3pf69MD8M9DMpQJkPyV3NCCKLTYV?= =?us-ascii?Q?bwa/iyElqRiFVk++i92O04o5/TNn9j3bDkYvbWfdbsPUiXHWHU027TjtFdpe?= =?us-ascii?Q?qSnbpdEBk6NCQqibQRkUp9odF9/EOgcr0Tn1wZJviCLlDcBVIOo9ZwvCpNsU?= =?us-ascii?Q?wALF06Zt4meccWPeeLBgUwT5xLs99pVK2SYjIrYvOAWVLBfS1nyJNUU7WY+d?= =?us-ascii?Q?zqg0LVTGpJij2ngjE3W+Jlw5f8PgCj0siFK2sbnoFv6XCMyYo73WJVVS5Doy?= =?us-ascii?Q?g+tqc1KjCX9x+HLOL/EKPMyosIf9AlK/UqjmJArItNHnhoLkoCKtzW1y0tiC?= =?us-ascii?Q?8FbQxzIqylt0JeleyFXj4eV0CXaqQfL+pHJbj3tJ06r12oXJTFNg/l7xw3OJ?= =?us-ascii?Q?tzkhYuflOZSbj5a4JEqacs8RgZPaXgb86nc0MyVFsHOEmg4XwK7BKJOI31gu?= =?us-ascii?Q?F1YE1xvpcOoEnJSaLLYSKsCPIenp4d4tkNxF+NM0EDuHRd4u5VJUWQoO1MUH?= =?us-ascii?Q?ix7MirRgHyVL9NFX/qM+xNIHZx6ir0322sTm9dHekEWaRrIKamnjtNn2IDl8?= =?us-ascii?Q?fT8eSJlqT9uZNp6+r/gzaxjyigwUxGkkI0LuvO3iF/0qvB8d5bj2qqBukcCm?= =?us-ascii?Q?h8aUNVjMfF28BxLdQg9/RrzUhAmol1V8pQHR7PBZYjmYPDC/uikyRcaXaRuY?= =?us-ascii?Q?MAFcndTdZI/M3WgnDftdiaCMyFusu0ffnuQSpqMUrRmlTNEBZOZ6pTBbf9ev?= =?us-ascii?Q?sK5EoGU3FzAglAK7EU6GtsKpe0bOxJttG5LH0NX6j3EzuBBFcCbiF8/vdOp7?= =?us-ascii?Q?PO/2UWPMT6gl+R9AR5PifwtkYGm/meMtn+vV+VoBKXa/xrfCxzZTsSBdZEtP?= =?us-ascii?Q?YEP0kwQR1aQxw+NuWx5FBBJ5aevy13LD0nCIMahhvIkqesWTFfo8sg/PVAV6?= =?us-ascii?Q?lXPdjMb6E6O7hNQphZMG5khKzmBeQgl5F9vnC84abVl1keMv0jfggk1u4RKT?= =?us-ascii?Q?CnzCSMjGTDxnqTYNyDeaL1YH4DyEuDSI+4/QY+Yi4t249aDZ3c3upd1fq+Ln?= =?us-ascii?Q?LWFgQgUtz6f9IZgvI0EYT4GFHbmO0qxTE/x62bBop8CAyS3VZ+9Lc+INImmq?= =?us-ascii?Q?YbzztDqaZMrWwwaEZ1s7Ax0Tje8Y7/+sy/5MQzj3g8klpzDbxGy1hTtzUeI/?= =?us-ascii?Q?0w00YGuFv+Q7jy9MLkNtUZUi3f+SXqohGPx9vat1MhrnLnwY+nQd2cFCh4a4?= =?us-ascii?Q?VinUinZa2SJvCnx/2Zjr0GcOFsO2cZGtMN5pjz4Y4LX44jf4ZMNcRiMvHrpb?= =?us-ascii?Q?pzlYVhtiEe5IF3jkgt0ZpopO?= X-OriginatorOrg: suse.com X-MS-Exchange-CrossTenant-Network-Message-Id: b1fb4bae-11d6-478c-265d-08d92bfd40dd X-MS-Exchange-CrossTenant-AuthSource: VI1PR04MB5600.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Jun 2021 10:48:16.5740 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: f7a17af6-1c5c-4a36-aa8b-f5be247aa4ba X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: zJBCrIcMMyXrUElcWSpSkB4RTvF5Yz4ZMTztAZ9KWfHv5S6CQGuAWIqJBzhs7rScnHM03ZHOhniBVcPZ2iFvkw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR04MB5165 On 10.06.2021 12:01, Oleksandr Andrushchenko wrote: > On 10.06.21 10:54, Roger Pau Monn=C3=A9 wrote: >> OTOH if we properly trap accesses to the SR-IOV capability (like it >> was proposed in [1] from your references) we won't have to modify OSes >> that want to run as hardware domains in order to handle SR-IOV devices. >=20 > Out of curiosity, could you please name a few? I do understand that >=20 > we do want to support unmodified OSes and this is indeed important. >=20 > But, still what are the other OSes which do support Xen + PCI passthrough= ? I think Roger saying "want" meant to cover ones which currently don't, and which would have to undergo more extensive changes if they were to be enabled. Jan