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b=WFFQm9maTzEmTrDFhqAq+Kdio3w8bMUT3Oy2ZigkyNUEPwmI+zUZpyvQxLBq1GvvM0zhvHNGkmdlNBYqbLn7YYQDQdU60VWTCQk9F2OA2ADmUTb7zTJ1AEnT/azwflfHmG6V/ny3uJhGPONdklnP4VO9e/PF0v3LoQYrK7+RJplLt9YmRx5QaBxF2JAfFeoTPqX45cJz0y0IP4IIDJoKqXcwbpgqH0OM+Kq/aH7r+vuELlw6u0NWhoUYUgX/WeiZLm6Vnii2kWicjGCj7r5mhZ5DMk2mTUnZlMaC/5YgYL84MuHL1Jx5JST1OUaNCchijK6TpQwfqQ/FVHZdbrsagw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=suse.com; dmarc=pass action=none header.from=suse.com; dkim=pass header.d=suse.com; arc=none Authentication-Results: citrix.com; dkim=none (message not signed) header.d=none;citrix.com; dmarc=none action=none header.from=suse.com; Subject: Re: [PATCH v5 07/11] xen/domctl: Introduce XEN_DOMCTL_CDF_vpci flag To: Bertrand Marquis CC: Michal Orzel , Rahul Singh , "xen-devel@lists.xenproject.org" , Andre Przywara , Christian Lindig , David Scott , Ian Jackson , Wei Liu , Andrew Cooper , George Dunlap , Julien Grall , Stefano Stabellini , Volodymyr Babchuk , =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= References: <20d5b9d6a0d01a7b90711d28cbefb5701a88b438.1633540842.git.rahul.singh@arm.com> <9217a6b8-fc53-a049-7cd3-7458b574424b@arm.com> <8F9D6B9C-58CB-4000-995A-95517EE72A3B@arm.com> <9C5C0FE2-67EA-4CD7-893B-82C156F5F77A@arm.com> From: Jan Beulich Message-ID: Date: Wed, 13 Oct 2021 14:57:17 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?XupZCMsYGCQEYmkgzFvjJPzxKB8yDE8qrlQ2jfWx5iE8B+o2E4Xc9H3CzuED?= =?us-ascii?Q?GBGTmzrUmHWl61ZO4xZNDxKVHgShofaDMdczl86RmOp/XDJXWa1xJqMfsM+C?= =?us-ascii?Q?ME7SzKYegteOjFdzNO4zU0ah40u1GiWGcC80FIZr7Elw/jCLP4Ou5Dkhp8cf?= =?us-ascii?Q?+6eEXl4kOs6f2eBFp7/jxyWX8sIhf0vBI5OpzxHgOOOMllUj/RGcjNAUCIae?= =?us-ascii?Q?lqbDN4yintjo1layOuNKrgZEyEbnZedGAPqt8Lm8KpE1ssYxwbscpoUoePMZ?= =?us-ascii?Q?Shh5iNEGRn7YFxpWX99cYbJcBweFtUgbOQfGz9M8NmJwl1y2JKn+OIn0viYb?= =?us-ascii?Q?9H1i/noNWzFHzL9oD8GM3uaNvxsGOoeWSvbT1VxhCt9orglg1Ii+R/qG+yp4?= =?us-ascii?Q?mrPRBBGMpIjKrig/BLpz3Qy69/k/1NqjmS7r4/Rc6etwOUWReZqud9X7AfR3?= =?us-ascii?Q?JWgHDEPCv2FwTkL0Y7CM4bIU+I+k7SYcMVveCVHbuwN7Oye6sYa5xcqf5+gq?= =?us-ascii?Q?cnIHXpJNnX63+/+iE82KCI/m+C5E7G8MIFoUH08L5Gt432NXJ441BnZuojg/?= =?us-ascii?Q?Vbw5qui9PEqCdnIkvTzCH//dAEbU5QtiLgolTpu3ktY2pqMNx8uIuAqN8rFH?= =?us-ascii?Q?ImOC8pVxeibdI2dsbE4NvhZNdQSY3veHjBGw7M+/Ig1TO6wSvgoqZiQP0HkF?= =?us-ascii?Q?nY2oMt1wfnSsGzr/rMrTihvelSkTD/wuz35EmvfkLTlqomh1JoxPMw2BM3UF?= =?us-ascii?Q?C2IYKPuTMrK28Si3cixZKQaqFXavJx5L02jQXj3JlVM+/dV4YjJvy5yYf2Xd?= =?us-ascii?Q?ihvYYK7lHJEgyHsm595erYgZuBzsjUh6IKu46OVKTCtLJZeHWUMUqQUf1gvI?= =?us-ascii?Q?0J29KFoaxoquyolZiz3VlPgVQdRmdx4ueF4s2TyC+NcZ9GeFSoSXzrPmC2i/?= =?us-ascii?Q?LeN8A75GjHJgaY3UMqcpw2dyOhrWNKH3oq8hG7DLfHrBqiK6bjARo1fXfmS6?= =?us-ascii?Q?MmV89Kymr3vv26b5XfjZ0re7DWNcdPkMRzMUXtBCqk/vQpoBKAJ+0GDHRVx7?= =?us-ascii?Q?xYdMDA3N92+Z2C8tIk7YI7jx7582j14A3Lg5da/KEv8jaG3Eut7YdBDPTcke?= =?us-ascii?Q?R1MoGmcAASGs4yl07K4dGeyjZ+l0XylUGEvidoB6zot+ZlHlhPfdf8cyoHqs?= =?us-ascii?Q?CmKQ6lNiEoC7PaBwQcc43Ozrl2r1NLsZG2s1U+8NV9LQopcN41JnnZYk9Xqt?= =?us-ascii?Q?UPsywzCQp5dMYI3teBEJKqoAPD+i+xOt6rHcOdj1GnbHcF12JHMY1ohDjZ1u?= =?us-ascii?Q?v/RHhi92D1qI2l1guR1yOtnY?= X-OriginatorOrg: suse.com X-MS-Exchange-CrossTenant-Network-Message-Id: 5dc0b660-ac8e-4ab0-ce19-08d98e48fdff X-MS-Exchange-CrossTenant-AuthSource: VI1PR04MB5600.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Oct 2021 12:57:20.1044 (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: aUmhfZJgO8kdhllY7/BaEEbRLuW/rHG0rLUD5Yh/4DpwZ9CJF8QQc5Z7nFSa0fJImN0gM90cWhY/8yPYj8qa/Q== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR04MB5744 On 13.10.2021 14:11, Bertrand Marquis wrote: >> On 13 Oct 2021, at 11:56, Roger Pau Monn=C3=A9 wr= ote: >> If vPCI for Arm on 4.16 is not going to be functional, why so much >> pressure in pushing those patches so fast? I understand the need to >> remove stuff from the queue, but I don't think it's worth the cost of >> introducing a broken interface deliberately on a release. +1 > We did not push that fast, those have been on the mailing list for a whil= e (this is the 5th version of the serie). > PCI passthrough is a big change requiring lots of patches and we decided = to push it piece by piece to make > the review easier. 5 versions for a series like this one was to be expected. Imo it has been wrong in the past to rush in new features (even if experimental ones) very close to the freeze, and it has mislead people to think they can delay work until very (too?) late a point in time. In fact I'm getting somewhat angry seeing how much effort is put into getting this work in (including myself doing reviews there), when at the same time far older series of mine aren't given any chance to make any progress. Not your fault, sure, but an observation. Jan