From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from CH4PR04CU002.outbound.protection.outlook.com (mail-northcentralusazon11013044.outbound.protection.outlook.com [40.107.201.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 472B31A9FA7 for ; Fri, 3 Apr 2026 12:41:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.201.44 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775220096; cv=fail; b=aNq1T0a9F+TyzTJVSYdZQ23LDV5oMcoAh+nKTXjY+xde6m1Ae6idBGe8dlSYIzulqdm+onFvVw2Csy5GqywIru4sOexSrDvXK/62cCxUmfEJqgW9T7Zh8xUC0G3sjl9JapR4rhQ1LSLKitvNpiTVoAFreJsqyKS3X18vgbWRajQ= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775220096; c=relaxed/simple; bh=pJjf8jb1osRDcN5t0r25vP1jFGOxb0dL5YlGZILsbGE=; h=Message-ID:Date:Subject:To:Cc:References:From:In-Reply-To: Content-Type:MIME-Version; b=YF5LwjuwjvKU95fE/UM/xdPEXyJrEPa155jjYefUda3/Cdy0lM2L5Fc/dXFGJF1e3z7wUm844J+OyeaT6uKI5LHD9GcmSJMml8RxHGt+kHjz+GEYefYe8Ga4gXNToLFIuJ8VhpcHuY8xVWaQwWm8MTNTqkwAXp/EXMEXRUOBjYk= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com; spf=fail smtp.mailfrom=amd.com; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b=ymFQMDRp; arc=fail smtp.client-ip=40.107.201.44 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=amd.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b="ymFQMDRp" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=r5DAIh9y6082qcMPzSAgkvm3s9YHeLF2TrPxunJ3Z0UVqAflmSksBkm0ahZSemy+AS0ahFAD4pdqsMAHMdwJ8wrlLeD1sN/all988Ho3wUBu4lW928JNAF8QBQh2Jj8ADEpqVuiuI1ceE/jT5k72Dr9XewLj21/62hUqQ9dMv+1p/ASvQ5SOWnKdCQ6HT9yCIzTsbPbQ8NbCm/DJSDsRrTqYMzDMnlalFOUV1GVNNQiIzXsnxeOWVUZOTutXxiKCH50ZgSMr2O1l9Hov9dYeAeNLXnrlOWBeTHSTV2SWbsnhfgdOWOEEvimPp55YuaOAz5qigEOwkrJskRW2RvqviQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=Ihiek18iA33qiJNpBt+4r6yiFsJWx8Ps9GfyDxCSGhA=; b=ERme+zy1UVDpSIYkmI9Ksl+9LFXsPJcS42aN2n4y9l47bEnDyAF7d4te9sS73E7QX0P4RDdTzqACDU1fJW39qrL2q9+oXutT4jQ01IbncI9m+mJuzkjrX1OPCdmpkUXMI4AoUcwWUS1+heCTE9D+R8dOdGX+JzIAozg0JSkiPHi1443PI+6gHbfzso/QGLcw35D1smRjDMKFzAhQBR8t8C+EnGezY1+GqDF9efZyBXcn+GfgH6xbunO4J2qVJTycXxEwSVeuhv3JrmWZcnDbuvJmvWRCAj106ao1bKPqj9iCL4f7+/oWtVfYhzeUB+8W93Da8y2/yjv+6b+dnMzr/A== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=amd.com; dmarc=pass action=none header.from=amd.com; dkim=pass header.d=amd.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=Ihiek18iA33qiJNpBt+4r6yiFsJWx8Ps9GfyDxCSGhA=; b=ymFQMDRp13wC+0XHfzRVXxLRhOsA+v/OjVmcNkN1eAd/czet04fytdG79Ex8PbRTT11Ug/u5tZTN5jPCjE7JWI5daoozE3iwCgScjnzTKC8o5/QeRGsqWE+DMfadCqmATFelZYwPdSVKXwD9IcakHaEBFX4DMmjQGUWoMvtZxtk= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=amd.com; Received: from CH3PR12MB9194.namprd12.prod.outlook.com (2603:10b6:610:19f::7) by PH7PR12MB7281.namprd12.prod.outlook.com (2603:10b6:510:208::6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9769.16; Fri, 3 Apr 2026 12:41:31 +0000 Received: from CH3PR12MB9194.namprd12.prod.outlook.com ([fe80::1e6b:ca8b:7715:6fee]) by CH3PR12MB9194.namprd12.prod.outlook.com ([fe80::1e6b:ca8b:7715:6fee%6]) with mapi id 15.20.9769.016; Fri, 3 Apr 2026 12:41:31 +0000 Message-ID: <46de1d41-a660-460c-a49f-ae2d2ad7afe1@amd.com> Date: Fri, 3 Apr 2026 23:41:25 +1100 User-Agent: Mozilla Thunderbird Beta Subject: Re: [PATCH v2 09/19] PCI/TSM: Support creating encrypted MMIO descriptors via TDISP Report To: Jason Gunthorpe Cc: Xu Yilun , "Aneesh Kumar K.V" , Dan Williams , linux-coco@lists.linux.dev, linux-pci@vger.kernel.org, gregkh@linuxfoundation.org, bhelgaas@google.com, alistair23@gmail.com, lukas@wunner.de, Arnd Bergmann References: <20260303000207.1836586-1-dan.j.williams@intel.com> <20260303000207.1836586-10-dan.j.williams@intel.com> <228298b7-76bc-4ffb-bec0-0c35fd487c4c@amd.com> <20260323182014.GR7340@nvidia.com> <20260327114921.GL67624@nvidia.com> <20260330114902.GA310919@nvidia.com> From: Alexey Kardashevskiy Content-Language: en-US In-Reply-To: <20260330114902.GA310919@nvidia.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: SYBPR01CA0143.ausprd01.prod.outlook.com (2603:10c6:10:5::35) To CH3PR12MB9194.namprd12.prod.outlook.com (2603:10b6:610:19f::7) Precedence: bulk X-Mailing-List: linux-coco@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH3PR12MB9194:EE_|PH7PR12MB7281:EE_ X-MS-Office365-Filtering-Correlation-Id: 9cc38b39-ed8f-4a80-cf0c-08de917e5519 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|1800799024|376014|7416014|56012099003|22082099003|18002099003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:CH3PR12MB9194.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(366016)(1800799024)(376014)(7416014)(56012099003)(22082099003)(18002099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?YTVCNnNzNHp3blhCSGNNbVBsTzM0Q0h5YnpEOGN4dWtYRTRSS21PWWVyNWlm?= =?utf-8?B?WENHeVMwRzNadHpVTEhQTWpGZEFjMHRwY3dZelA4ZFFyd1lsNGZlYUR3NG9N?= =?utf-8?B?SFlYZXBaZFJmU2NHWGlWODNZMkowL0c2aU9QY3ArSUNmUDhUZXFqcndVM1hU?= =?utf-8?B?aS9IRWtnZEpDVVRma2pqQVByV25VUW1QSGZmV0RiTk5KNUxGa2tDL2RYUHM1?= =?utf-8?B?VFdZYWxBSnFKRng1c0lZN20xYnhnUTdUQjdOL1FWWnhlaUlhc3N3NlpURkMx?= =?utf-8?B?ZThIK3paR2VLSU9hSUpINE1vY3dGRlZGZkp4MWlSQ2JyQnJIalB2aldMSDA1?= =?utf-8?B?dWk0UHdYRVpXekpDRytvUHBJaTFUVmJIWnpFcDgwNmYzb3pjVFRIL1RlWWxX?= =?utf-8?B?QTd6V2x1bGc1WGhHdGZvZDVEMjN2ZERHSkZwQVdmZ24vVHJJaUtGbFc1TFBt?= =?utf-8?B?TU5PWC9nNUJnV21tRi83bk9SNnRlM010N3RGTGZXaUZmVWhUKzB2NCt2azRi?= =?utf-8?B?eTV3elVNMXI5WEUwVDNBdVc3MXg5V1ZWU2dmalRlZGZ6TFA4SllmLy84YmVD?= =?utf-8?B?OFVtbWtUeTJqeFpUc1NuREVqZjNxT3MxaEtYVm90RTY2alRqMmZrMnVOUUVQ?= =?utf-8?B?MTdkbmFMbjVUYTgwYUdJTitFd1A0U2tYV1pwNEF6U0JSYVhqSW81R3hRQTVh?= =?utf-8?B?VVl5eHpUQWZiZHdjTWZEeHdzYkNtV3QvMzEybGpEcThZMzI4bmpsVlpIVTBQ?= =?utf-8?B?Q0M4ZnowRGNXK1J5dTRUL29jNzNhSWJxSTVwb0ZJSnZxeGgvQzRBcDdmMzgr?= =?utf-8?B?VWJMZjUydTYvYjNEZ2pzM3Qxckp2RzRzR1JVUVFDTk5UMDhqUkttNEo5M3No?= =?utf-8?B?ckdHRElyT2pFY1ZhSHptbGdWeHlpOXFjRjdEL29WSjMyTGFuV05zVUNvMXJG?= =?utf-8?B?YmJZeE4zdHU3dlBJN1NqYjg5NjF6eFBVZW5ySzZSTjU5L3lRTlVPRFJNa2ZW?= =?utf-8?B?cnJuTVkxK1B5WHNnTktoaUN6eHAvRURTdk4zcW5oR0RONEpnUHRGaEgwU216?= =?utf-8?B?UDNYa0JtU2tja2dmcFpZQ3hTbjNNeW43TW9UMzUwWmJqQkhFbSsxQmxKSFFL?= =?utf-8?B?YzhOWmE2Njc4dFAxZEp6VTFKMkw3NFJHRDNnZzArYytkN3Jlc1NTNVFuOFZY?= =?utf-8?B?WE1LTytjMDJQUWpKQ1BoNHR4Tk0xd1JWelB3SVYwZHBJR2Jmdkp0cGRYZ0FX?= =?utf-8?B?OCtNRGpTTjZzZHIxZkkvM0xpcjJEWWR6VGV0TEJ0Um5MTDZZenVvc2NJMHh1?= =?utf-8?B?SHQwN1g0K1g0REZrREQvbnVLZ21mRzlLVWJjaUJPOEdQTFRLanFFVjdBKzkv?= =?utf-8?B?Z1p6b1dqblYvdmtnaklSUXR6cCsrcHRrWGpHMGFNSkgycGtTdzd5OXFVMVZF?= =?utf-8?B?Z3hwSUVFOFljTm1WdWRTdURmTzRrL1FaNmszTVAwUk85akQ1enVONjk4Vm94?= =?utf-8?B?Ty9IV2dTV0dKYXBBMEsrOFVyZ3dsaUNMMTcrWFJLRXZzbXF1TUR2eTRVa0Fr?= =?utf-8?B?SWc2Kyt2QkkyRksyZThRcTlabnJoYkRJSjZOV012MHB6bWFkMWtqQnpzeCtG?= =?utf-8?B?UVg0QVlMWXhFdGhUNG82NTFBTFVNOHhlRGtuL25hT1MyNmg4QnVYWnlHQnRi?= =?utf-8?B?a1ZzL3NGZHlrSkoxeFZpendMNEdIcnVnZVZ0Ry9xbEpCRTBqbktzSmNLanZJ?= =?utf-8?B?QTJrS3REb0hQOWJCNjRaRENiMlB3SVM3d1Q5OTdJRGIzRjRLTUFXS2kwc3RX?= =?utf-8?B?WHprdWxwNE0yWDVZNTVHazVtR1p0clVVS0NqZmc0Nk03NXQyVlhkTGg3WGFx?= =?utf-8?B?bTVReXp0bytBc0dIR25EYUZ4bUtoN01iY3NXaFNjTDhIaDFVYWlJY2NOUUxT?= =?utf-8?B?eEhDWTQxRTBZcmpybjMxWjBWLzJZNk51ZVphNnF2cWlNK0d3dy9tTHBpRjk1?= =?utf-8?B?TVdJOTd5OTVxMjBNY2tnbHFaL3pzbmpxWnppMlE3RE1UOWRkaXBGRHY1dG43?= =?utf-8?B?R3lwTkF6bEdtQi9Nc09SN1JqSTNjK3R6T2lnQnVuRkJQbXI2cXZxcFJka0lO?= =?utf-8?B?U0tNSzFIbHk5TE8xNk5DbEYwOFl3bVMzUExNWTR4OWpyang1NHFCQ0dJSCsx?= =?utf-8?B?TVBqRnJYTVF1aE9ZMVkrYnJXb3hBK2xSL3FSY1UrVXRQS0MrQ1NmMG9VSFlo?= =?utf-8?B?dUNMbG54OGEzK1U3Qys2SDRPN3A4SmF6UklRdGVJcGNKY2tNdUVaK3NiVDRn?= =?utf-8?Q?i2whOkWLX1GdyYe3gG?= X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-Network-Message-Id: 9cc38b39-ed8f-4a80-cf0c-08de917e5519 X-MS-Exchange-CrossTenant-AuthSource: CH3PR12MB9194.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 03 Apr 2026 12:41:31.5527 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: gmg3D+2u4TfRCV8eZ+OaxLm2n9l2baszGcE+rO5y7PyS6LsyMmG3W91uNI3xVJZssoaOe/O7hmuKR8jyOIjxKA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB7281 On 30/3/26 22:49, Jason Gunthorpe wrote: > On Mon, Mar 30, 2026 at 04:47:44PM +1100, Alexey Kardashevskiy wrote: > >> What do I miss? Thanks, > > You can't tell where things start so there is no way to relate the > offsets to something the kernel can understand. Reported ranges have BAR indexes and start addresses (with the reported MMIO offset added), and the first reported range starts at the first 4K of that BAR. And these ranges are in sorted order. Enough to calculate an offset of a 2nd/3rd/... range of that BAR, and this is what I am after. -- Alexey