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mx.microsoft.com 1; spf=pass smtp.mailfrom=citrix.com; dmarc=pass action=none header.from=citrix.com; dkim=pass header.d=citrix.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=citrix.onmicrosoft.com; s=selector2-citrix-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=qw04JksdwfVOt54kfZ+MsW10b2wmLmGYgPdR2s9bAgo=; b=OXhnfbHDvsMnMotzVsrH/dWh0ZY+DPvvxXnS8p2mYZpzjX7Dz+n5keR8YF/sPRkkKQfOpL+XjWL9tEGJTdkIV/claxpS9yWdnGUS9+nFVCgqAUWFcav8euvPBQHWUfsH9CTBQ1jedjzivQOvPZwPRkye1i6WEqvP0ygqxXtfirA= Date: Mon, 11 Jan 2021 16:54:00 +0100 From: Roger Pau =?utf-8?B?TW9ubsOp?= To: Andrew Cooper CC: Xen-devel , Andrew Cooper , Wei Liu , Paul Durrant , Ian Jackson , =?utf-8?Q?Micha=C5=82_Leszczy=C5=84ski?= , Hubert Jasudowicz , Tamas K Lengyel Subject: Re: [PATCH v3 05/11] tools/foreignmem: Support querying the size of a resource Message-ID: <20210111155400.vnwrktf5hzat72rt@Air-de-Roger> References: <20200922182444.12350-6-andrew.cooper3@citrix.com> <20210111152657.30868-1-andrew.cooper3@citrix.com> Content-Type: text/plain; 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X-MS-Exchange-AntiSpam-MessageData: =?utf-8?B?K2U1am1YWk5oQktmV095NnQwMGphWDJMY1VXWFZGaGdIZSs1eGMzV1RienNR?= =?utf-8?B?TWY5NU40eFJEQ21udU5xTjNHaE1PcGhMNmZVd2JrazkyUHpjY1BTalFYT3dw?= =?utf-8?B?djZIcXdPT29pMXBpUE5PZWxhUFVXQk5oR1RWVVBhdmozOVlxQU15a3V6bnRT?= =?utf-8?B?Z1BscGpZbU14MXZKeWJHVGo2SnRTVGljQnl6MUt5WDRPa0J4N0FxU0VDSUVj?= =?utf-8?B?QnNHYU1kSVdrOU1sZGM2K0JFTmJnMS9PMGNRYjMyaVhEWWd0VVdaa0RIb0xU?= =?utf-8?B?aVRpUk9YNFJNRU01dlVHLzR2UlQwSmVIQmd6NEJOSzJaTjFzQ2tqS0Q2TElx?= =?utf-8?B?MnAraUtGMktwdkxFL2IxYVZlcng0czk5MXdiVC9ESWZhRVYycGgydTg5emJY?= =?utf-8?B?Z3JVdVRkQkFXRzMrSUlqb042K01XNnRSdkxFSllKeWN3Yk82RW56QUlQcFo1?= =?utf-8?B?ZlZHTnhjQnEwQ3hucTBXbno2Y3lpVUdlZVBkVFVqSzRGb1duQzFieEVCMWI3?= =?utf-8?B?emZmNzRHTkdDNHV5T0lYekdoMG01Q2FCTlc2QytRWE9SOTA0NzR6NnJWZ0Fl?= =?utf-8?B?dmpjbitHdDB2ZkZjVFI1WE5HcXZyRElUMFcwTk9FK0Vvdi9nNjcwR3p5b1dI?= =?utf-8?B?eENyNkluSnRqcGkvV1g3RFd0bFhlN0cxeDBQT3pyMk9idnVUYi9xemtSTmVI?= =?utf-8?B?d1JRQjVKTzhRVFNxVnlHMnZ2bklKUmd5S2ZlWElpNDladDN3OXVKUEdZMGlo?= =?utf-8?B?K2NJOC9ia0ZBb0xlTC9ON04wcEVHV2JCUTh6ODEveXV4SHExd3hjbGx2cDlz?= =?utf-8?B?R0dLUWxqeUZPMUcrRkVQWk9OMmFYY2M3Z2RyNEdNaGNFMVZhQnplM2pIK0N0?= =?utf-8?B?RmZPTDhrOUFMWjRsUVR5UzVHNGhsOWJsSUNDTnlRT29YRFdBcUZsNjdoY3ZK?= =?utf-8?B?YmtQQzlROVBONXRYSjFPSHFqTkxiVWpPeVNpUDRyQXBlYWh4M0ptYkJnZnFu?= =?utf-8?B?OHlOVHI5V3FLRXBFWDBHb084czU1ODUzdXhsWW1mVFdsSGFRL0ZyaUlqYnVP?= =?utf-8?B?N1U2em04Y3dDNGxJcGNubWl3cURzWERkTmFicU1NQjF1ZW16MFhhazVWOWNQ?= =?utf-8?B?aTQ1KytKK0ozNVVZaGxBZ1hLcFN0M1lHRHhHblVqSm8wZmJBRFp6dXBJUHc4?= =?utf-8?B?UFVJbW5GZ014TlZYVFJhTHJ5bXd6QTJXZWpERUlJcWI1OGpkLytxMlhmRmJ2?= =?utf-8?B?TUZjTnoxRVJVU3I1WnFTb1JXaVdpZnRFSmFDZ2JiTGk5OG5MZHZheEhieUlj?= =?utf-8?Q?chTbta3OpXfTl8iIvzGzbAjawh84Phy56D?= X-MS-Exchange-CrossTenant-AuthSource: DS7PR03MB5608.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Jan 2021 15:54:05.6065 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 335836de-42ef-43a2-b145-348c2ee9ca5b X-MS-Exchange-CrossTenant-Network-Message-Id: 52ea9de7-614f-4045-f310-08d8b6491fdf X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: OpOHWGYtHW9SwdJ+/aVKKEfMSyNUIgk5PqF2+Kdlg4DOzewX6GSMVqOEsq4sJjBYkAmBub0NHRSoQzDlGAXSVQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR03MB3146 X-OriginatorOrg: citrix.com On Mon, Jan 11, 2021 at 03:26:57PM +0000, Andrew Cooper wrote: > With the Xen side of this interface fixed to return real sizes, userspace > needs to be able to make the query. > > Introduce xenforeignmemory_resource_size() for the purpose, bumping the > library minor version. > > Update both Linux and FreeBSD's osdep_xenforeignmemory_map_resource() to > understand size requests, skip the mmap() operation, and copy back the > nr_frames field. > > Signed-off-by: Andrew Cooper Reviewed-by: Roger Pau Monné Thanks, Roger.