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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=mH8URGvQhNiKjp8UINoe2iWsXQVOEuwefjeCIRcJy/w=; b=IBEoK9ibRqD2xFznY3KbGb1QhwLR31azEE+H0gN9fUE5MvjWKKiyWBa+aSVbYP8sGyl2+xRNmZvmz8KbaDDnVRaOEanjNTFRxhmZjwWYr7d2KmNxEEow3b3zXggZ0to8b5CpaM8fJr+bvw85gg6AoKkHFcJ3bBrvltkMS1c/80w= Subject: Re: [PATCH v2 3/6] libxencall: introduce variant of xencall2() returning long To: Jan Beulich , "xen-devel@lists.xenproject.org" CC: Wei Liu , =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= , Ian Jackson , Juergen Gross References: <6c532607-c2a3-d0ab-e4e5-428f85f4a045@suse.com> From: Andrew Cooper Message-ID: <3a1f9e09-dc01-1107-6a76-5e24d34e0292@citrix.com> Date: Tue, 22 Jun 2021 19:22:21 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?MGFJWmEySHUvRDhiclRTdGdwaVkrRnlMdVkrRHlPRnU3UnpIYUFpRStsbSt1?= =?utf-8?B?aEwwVzV5NUQwVEhEVjlkM3dnczNxcTZBWncxWXlsalV3Q1R6MGRjK3hkMHlO?= =?utf-8?B?UWJHRmNyYTdGN29pTHhmRWNhKzhEQi9NaHREQjRUdmppd1NWRDdvQ0sxMEt3?= =?utf-8?B?OGVaUFRJOW1YUW4vWTlBZnVMbmRzSmV6UjloUEF1blVuVmo3czM1RFNSa2Jx?= =?utf-8?B?clFZWXVMVTg1aUVtTmJyNnJUZDBobmM3YjZrZmEyRElBUnlUa1NJK09SOWlP?= =?utf-8?B?S25rMnMzZnMvcnAyQVVGanluSUI1aUp6Wkk1VzZ5ckFPQ0dManVVaFJpTVNo?= =?utf-8?B?MWpvT24zbUJJRmJSbkErbTgzWThRNjV2NlUxTjBxRlhNSGtRN1hWQUQwMVJ0?= =?utf-8?B?ZTdpeDEzUm1wblAxbHJjV1VuL3dvekMzcXoxVytiVHNZZm1mYXFtLzlOZ01H?= =?utf-8?B?cnB0UU5aQUZCODJ5UzRDaDdDdG5SaHo5a3hvQXp2QWNKVllFS204OTViRGxk?= =?utf-8?B?cXNIcmtjbWxCajFubHduR2twUU9obnd2NGNXdlBCVTZwZm9LK3FoemZkSXQ5?= =?utf-8?B?SDZuRGNaM016NGI4ZWFrVmZ1b2x2Q1BhVk5VaEhYRWZ0OThlYWljTFJGa0g1?= =?utf-8?B?L0dvN2dzOHhwT1lqbExYb1kwVkJ4RHRWZnJ4VlJiWjVrUWcxdWtsWHlCTnFu?= =?utf-8?B?Y0w3NllHZU5zV2g5OUluM3lIUC9GMm1PdkNnY1hTV1hncms2aGZhclQ0RGZw?= =?utf-8?B?Z3c1Q1ZvbmVWZHFFTVJGdldsVG5RcGJCeVdmMndKeGRZbTFKM1BRdy9aMkk0?= =?utf-8?B?RWYyY1ZtTVBUOFJMTWdxR1A0TFdJMDhyNjJHa05URHpQdEdBTnpKMWlXTnIr?= =?utf-8?B?eUYvek96YWNlMTRxaXdMVHM0Z1MxaWR2R21IRWlPa3FRQkl5a3hCTU5Vcmxo?= =?utf-8?B?dVZaM0ZTR29nR2ozY1BqOHVydk43RWlNWWZsK0Fpcmd0RStSL09TMUt3YmpW?= =?utf-8?B?OUNpN1ZrZ3dJNmR4R2FLVWp2WFp3RVM1YXRQcTl6Vys5RGlkeDFXYWQxUnRS?= =?utf-8?B?TDVFb1BPOEpDMjFaeHNxWFNwc3prNkpKM2JDSk9waGdCN3dxanUzbUxvNkxD?= =?utf-8?B?bFpOQjRLN0pDM1lVOUxJNnVtODdZN01NOE9kd1Z2WUZFMGpmcytaZm1ndWhH?= =?utf-8?B?a1lHMnZ3akZxUG9uQURJeE0zSk4rYkRnYm1rN2k3eEJvY3Jia3lsZUJldHBa?= =?utf-8?B?bGEyQVlwQU9sUFlsdzJ1Z1Jia1FzZlpZbXZmY1MwSG9kU280WlV0Q05ON1Jz?= =?utf-8?B?MG9VMGp5OEU1M0xnVlBkVzUrYjZwYWdKbTNxdEdZRlppZlhHOHpyZnhuMXli?= =?utf-8?B?Ymhjc1JEcVd4SWxkTzhqMEZPVTc5MmU1VTlPZTJ4ZFQyOXlUaVhEN3V5bUd2?= =?utf-8?B?cnVzdGdoOEM1WkRCR28ycXQyU0VQaytxQnltc2xERldmbGZ5bENCOU4wQmxa?= =?utf-8?B?V2ZqYndPQks3eUZHZGxmaXFKdTUvamVOclh6RWQ4cWF2WVlpbGRoL2xOYTI5?= =?utf-8?B?Y1JhOXE5TCtDZkJDMmRGcWI0NVphTTBUTVMyaWZqMXROQUVnbkFVV292djVp?= =?utf-8?B?K2VHRjlMc1NncXIwNTFiaXZGWDNsWFhhdEtYdkZFeEVYYzZrR0psMEpvb08y?= =?utf-8?B?bW9PemVBWnFYeVh4RWpMNnJTOThxNGNHUU1kM0tHVHM4UDNjcWxJWVpkeVBP?= =?utf-8?Q?B+enMeRWj57AUpqKt/4Q19bHiGtZ7tq2W0En71y?= X-MS-Exchange-CrossTenant-Network-Message-Id: 4cec6b8d-a40a-4b65-86a8-08d935aab05b X-MS-Exchange-CrossTenant-AuthSource: BYAPR03MB3623.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 Jun 2021 18:22:27.2704 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 335836de-42ef-43a2-b145-348c2ee9ca5b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: slXbmrRwhtmDwG2a4mnSXMTzClS0PmcDiK/Gtr/njyxxBu9iTkGcqTVrwdjnsEFWgWSlcSdePwcrR2pez8F84b626ByndR/mWUni+HpGQTY= X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY5PR03MB4968 X-OriginatorOrg: citrix.com On 22/06/2021 16:18, Jan Beulich wrote: > Some hypercalls, memory-op in particular, can return values requiring > more than 31 bits to represent. Hence the underlying layers need to make > sure they won't truncate such values. > > Signed-off-by: Jan Beulich > Acked-by: Ian Jackson Acked-by: Andrew Cooper