From nobody Wed Dec 17 18:01:14 2025 Received: from NAM10-DM6-obe.outbound.protection.outlook.com (mail-dm6nam10on2052.outbound.protection.outlook.com [40.107.93.52]) (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 9EC3D1E4110 for ; Fri, 13 Dec 2024 23:29:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.93.52 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734132600; cv=fail; b=bSM85cqBSTZLwWz5mH2gnLBqv/yXdQ8DiRUMko7pBG4wPxQpesA3bUfhPKmibLODiiA4aLbxl5Mpg5yyvtjOIxjBAykOQWVAZENgb/Gi6ry6+tF1nTnN5xmcFYTHrMld9iDw/GNrc7rkAbDDHyNsS/VWDlSnLe3CPvjyJP/9P/s= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734132600; c=relaxed/simple; bh=PEIze91CdPVyVXJwglLbFAIUEbbyZlojb5+pPU2MnHY=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Sb/fYrjyWzlmQmHR8UGxEXFEJSLotl52Kk2tICurgYJWXYuLkP9NglLXCqikaXc5IGBV7lSF7zPGDQnUgpRW+LRcbHkDA4w327D+vffhvT6UYz0uLARmWTQfeGLQ5gE4rYsLPyMIIda6I9XC+CXrr6kpSIQdxn8rT4sYCYfbmXA= 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=rSfgqI5J; arc=fail smtp.client-ip=40.107.93.52 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="rSfgqI5J" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=IwIDIMM5dS76vEqK7kHQULo+OTHEYD9UaQk4Ytwrj27Y/Wj0BFx2eEicxcfwuWdd+1WnacVNQfKQvXhV7mhZuWCu6ihQOhOX7UAl4yxk7ABjhiUf3YC1JFN3Ee0zWM1j4H1LoayjiwP5HlsXMutrcM9EtW3xzk1chK41tyatJnrRs94khDN2xfgh1RvJN5nvFF9YcNfUVPKgdycooaromm4AZbLI3UZA8ktaNWSnBga7vmasnJGlTDxZf43H56cMXXuw0V9XUIz2WyP95IdjGu5ejnDQzGtXqvpGL0v4tFOwk34GkbA7ZOHrV7xA3lNRjU344BmUdKEQnjgFi2ZhOw== 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=LyruSVpMu8ps/yJ0DI+rseyttlx5z01bv9O+pd7K2HE=; b=aQzc7NEwC/Ld36SiWgbas7I8hoYj9Yo0HRYORZd5MApq5wGLOGkZzhJn6PIjLxf6Qo9aN7Vy0cI+AiYXPY/vgabtxvnlwwSXQgfwiXeFPfauAbFKPbmVHQ5mvtuozOcieVoFkmTHwlnbYnAsuVAt8yYXbKCTZCZgNHaROWpUXsBoTiY6rj0yQ8t93RriziAdJ0sMNdM869EQBwsYtJ/qZKrsoNjd2RYcvGSMnJsW3876tbaSzZl+fTc+sDALKYwDTc7+xWUDdDyHQ+0+A6EXR7CPDn6EvPjVv3w1w2GI9EcLPBdj2vaG3Oj6wY7+8NvphI0TOCZXWQBwmNUd+pC9Pg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=kernel.org smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none (0) 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=LyruSVpMu8ps/yJ0DI+rseyttlx5z01bv9O+pd7K2HE=; b=rSfgqI5JBBCRpoUZl/X0VnV6NN77YNXWRu3XW1AdftwvbfmqG4Y7gvw2OJ7EXGQj7TxmHcIjSLNvnI8WpcWn7LYL76G2yRIN48A9JBkkXNJwTjrKg40wlgXqGS15ODsyg1f1D1aZYmeJIm90nOWXPCR7KB1iEKWN/FtVzgxSTSg= Received: from CH2PR10CA0003.namprd10.prod.outlook.com (2603:10b6:610:4c::13) by SJ2PR12MB7797.namprd12.prod.outlook.com (2603:10b6:a03:4c5::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8251.15; Fri, 13 Dec 2024 23:29:55 +0000 Received: from CH2PEPF0000013D.namprd02.prod.outlook.com (2603:10b6:610:4c:cafe::71) by CH2PR10CA0003.outlook.office365.com (2603:10b6:610:4c::13) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.20.8251.16 via Frontend Transport; Fri, 13 Dec 2024 23:29:55 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB03.amd.com; pr=C Received: from SATLEXMB03.amd.com (165.204.84.17) by CH2PEPF0000013D.mail.protection.outlook.com (10.167.244.69) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.8251.15 via Frontend Transport; Fri, 13 Dec 2024 23:29:55 +0000 Received: from SATLEXMB03.amd.com (10.181.40.144) by SATLEXMB03.amd.com (10.181.40.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Fri, 13 Dec 2024 17:29:54 -0600 Received: from xsjlizhih51.xilinx.com (10.180.168.240) by SATLEXMB03.amd.com (10.181.40.144) with Microsoft SMTP Server id 15.1.2507.39 via Frontend Transport; Fri, 13 Dec 2024 17:29:54 -0600 From: Lizhi Hou To: , , CC: Lizhi Hou , , , , , , Subject: [PATCH V3 5/5] accel/amdxdna: Add zero check for pad in ioctl input structures Date: Fri, 13 Dec 2024 15:29:33 -0800 Message-ID: <20241213232933.1545388-6-lizhi.hou@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241213232933.1545388-1-lizhi.hou@amd.com> References: <20241213232933.1545388-1-lizhi.hou@amd.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: None (SATLEXMB03.amd.com: lizhi.hou@amd.com does not designate permitted sender hosts) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH2PEPF0000013D:EE_|SJ2PR12MB7797:EE_ X-MS-Office365-Filtering-Correlation-Id: b0a6f868-73ba-4f97-11be-08dd1bce0d03 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|36860700013|1800799024|82310400026; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?zc2wgJXBl2aItI9OmndqWG2QngGWGc8HyVeJaoShJZw2R4KjSUcX2ShejV/s?= =?us-ascii?Q?IPnW1DfncPVNaJI/70VHnQhxz/Sv6sP15P5hTvOye6loDaB6N7TZ62IA0Js5?= =?us-ascii?Q?ntHMLVhEg6+AeybViuikF+QgdAhl71+TK0TtaluGsE5iU/EH3nOJoeiZcbg0?= =?us-ascii?Q?Nm9vD5XRkgL4z9A83L2HTAYfdj8pXnHhcoeiwbl95Nvtup4W0rXE4r2qK5tS?= =?us-ascii?Q?qYx1rWU4A/HadFAqxS1+i7d8AIcAVniqBLXEt4By6Jww4fHkyL9dtvrDSqde?= =?us-ascii?Q?tv8mSUzIhmPbejq2VBS0b31tSx0Q01tCeVg8rcE7nMCUK+FfIPIFCp/8S95h?= =?us-ascii?Q?azJJkBzmxtgHl+GfxcmfuUedLI7RxyCJvVDXlfFwNS1Mhod7a6JyeXLTLUQi?= =?us-ascii?Q?WgJ7d0ehS2wJ55qgU9pPg+oJ67hZDQzcFMBRa/B+I8cdUOCRoSCztdvQ5GPw?= =?us-ascii?Q?TUBEMkA1fzRbQs8Td0LajrNgT21WT7d1A0Kv+vlMQmkk7kachzH1qZcKhJAA?= =?us-ascii?Q?D32tUyUnYLYawOQckgBBqvSDtlwd+5ReBHjoNDBAlmD7sD5MdEHAo4W1cGRx?= =?us-ascii?Q?NvZkZJvAYc1hNWqT6d1TaZF4gxNIlHWZRJCduJ69SuWpPAYnlddpXF4qOMaL?= =?us-ascii?Q?R8tjTM7D1EkvaEe70xcfYQpAX49/fjjd0mKoB4SVtFehDGr59niR2p3nuhxR?= =?us-ascii?Q?6nUYu1Ek/YNcZK3C3F4iFvwmqlPd8PEJ+R3owSZdeAhpmTJ8x2h7R3VlTxwb?= =?us-ascii?Q?2AWy/2ANQ0LiJcer8NbdCTRFQsQ2KizLyvr/PWkKa0IW23SVWqJvbZcwEwT9?= =?us-ascii?Q?HZdOaEq0S7S3AH/RAVKHtHVKwhi4SblOrQlNsTxMOiyQU1on1eg3oSxqSW6G?= =?us-ascii?Q?GQ7GkjBFoKGd3KKVAUvBhrx1f6ZS/GB/4s7fC/E/Xd57rUb5froibeGwf6F/?= =?us-ascii?Q?NHaOnE259V0rb2ghrrJE07yvonHctLED9dRyEVbRvaolWRISIzHXhuSHkq3Y?= =?us-ascii?Q?7n0ZWtJ/qa7wJOk/dhAJZHM8zW7K+u+E21dbO5ZSQEmH9wYEFPfx2N+4w5sY?= =?us-ascii?Q?flb5vP7c8WvJ5l4CdZfmkfDah3WpuCVi+RjelR9vO7skqG7Q9/UFTHtmogup?= =?us-ascii?Q?16kCjes2zUPcOXaZ6UoM3vjg1QaGWKfiG4m4leD2wNv3zP/Vwy0GNYLULgtk?= =?us-ascii?Q?nhZE13PW3CHjqBLsO/JMjkKSusubZD+srbPBMf4cUeFhglH2f4wJzXHWSbzw?= =?us-ascii?Q?HFygH3BBfEw0wrkK7glzmZ390HP8OWq7kjPvUa5xY/jYlVMAYcfgduNSYcZq?= =?us-ascii?Q?oO6vKrrccSMdb4ctBfaUk61Ia2qeAIGghyuUia8bAlGy9pe3coLUfpEisJin?= =?us-ascii?Q?XJCnpnmQ7F4ee/brGP6JOLqSFAxzQLsicUobvNiaXDPyQmIOPO3aym4mk6Nl?= =?us-ascii?Q?KImyuuxizMzhQVeU9AZ0OI622IXcPBwN?= X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB03.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(376014)(36860700013)(1800799024)(82310400026);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Dec 2024 23:29:55.1058 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: b0a6f868-73ba-4f97-11be-08dd1bce0d03 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB03.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CH2PEPF0000013D.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ2PR12MB7797 Content-Type: text/plain; charset="utf-8" For input structures, it is better to check if the pad is zero. Thus, the pad bytes might be usable in the future. Signed-off-by: Lizhi Hou Suggested-by: Jeffrey Hugo --- drivers/accel/amdxdna/aie2_ctx.c | 3 +++ drivers/accel/amdxdna/aie2_message.c | 3 +++ drivers/accel/amdxdna/amdxdna_ctx.c | 6 ++++++ drivers/accel/amdxdna/amdxdna_gem.c | 2 +- include/uapi/drm/amdxdna_accel.h | 11 +++++------ 5 files changed, 18 insertions(+), 7 deletions(-) diff --git a/drivers/accel/amdxdna/aie2_ctx.c b/drivers/accel/amdxdna/aie2_= ctx.c index cdeead75c6f5..9facf45818f9 100644 --- a/drivers/accel/amdxdna/aie2_ctx.c +++ b/drivers/accel/amdxdna/aie2_ctx.c @@ -690,6 +690,9 @@ static int aie2_hwctx_cu_config(struct amdxdna_hwctx *h= wctx, void *buf, u32 size int ret; =20 XDNA_DBG(xdna, "Config %d CU to %s", config->num_cus, hwctx->name); + if (XDNA_MBZ_DBG(xdna, config->pad, sizeof(config->pad))) + return -EINVAL; + if (hwctx->status !=3D HWCTX_STAT_INIT) { XDNA_ERR(xdna, "Not support re-config CU"); return -EINVAL; diff --git a/drivers/accel/amdxdna/aie2_message.c b/drivers/accel/amdxdna/a= ie2_message.c index b2ca78cfd0a7..9e2c9a44f76a 100644 --- a/drivers/accel/amdxdna/aie2_message.c +++ b/drivers/accel/amdxdna/aie2_message.c @@ -395,6 +395,9 @@ int aie2_config_cu(struct amdxdna_hwctx *hwctx) for (i =3D 0; i < hwctx->cus->num_cus; i++) { struct amdxdna_cu_config *cu =3D &hwctx->cus->cu_configs[i]; =20 + if (XDNA_MBZ_DBG(xdna, cu->pad, sizeof(cu->pad))) + return -EINVAL; + gobj =3D drm_gem_object_lookup(hwctx->client->filp, cu->cu_bo); if (!gobj) { XDNA_ERR(xdna, "Lookup GEM object failed"); diff --git a/drivers/accel/amdxdna/amdxdna_ctx.c b/drivers/accel/amdxdna/am= dxdna_ctx.c index 324f35c43f6c..d11b1c83d9c3 100644 --- a/drivers/accel/amdxdna/amdxdna_ctx.c +++ b/drivers/accel/amdxdna/amdxdna_ctx.c @@ -243,6 +243,9 @@ int amdxdna_drm_destroy_hwctx_ioctl(struct drm_device *= dev, void *data, struct d struct amdxdna_hwctx *hwctx; int ret =3D 0, idx; =20 + if (XDNA_MBZ_DBG(xdna, &args->pad, sizeof(args->pad))) + return -EINVAL; + if (!drm_dev_enter(dev, &idx)) return -ENODEV; =20 @@ -277,6 +280,9 @@ int amdxdna_drm_config_hwctx_ioctl(struct drm_device *d= ev, void *data, struct dr void *buf; u64 val; =20 + if (XDNA_MBZ_DBG(xdna, &args->pad, sizeof(args->pad))) + return -EINVAL; + if (!xdna->dev_info->ops->hwctx_config) return -EOPNOTSUPP; =20 diff --git a/drivers/accel/amdxdna/amdxdna_gem.c b/drivers/accel/amdxdna/am= dxdna_gem.c index 4dfeca306d98..606433d73236 100644 --- a/drivers/accel/amdxdna/amdxdna_gem.c +++ b/drivers/accel/amdxdna/amdxdna_gem.c @@ -552,7 +552,7 @@ int amdxdna_drm_get_bo_info_ioctl(struct drm_device *de= v, void *data, struct drm struct drm_gem_object *gobj; int ret =3D 0; =20 - if (args->ext || args->ext_flags) + if (args->ext || args->ext_flags || args->pad) return -EINVAL; =20 gobj =3D drm_gem_object_lookup(filp, args->handle); diff --git a/include/uapi/drm/amdxdna_accel.h b/include/uapi/drm/amdxdna_ac= cel.h index e4edb52bc27b..a706ead39082 100644 --- a/include/uapi/drm/amdxdna_accel.h +++ b/include/uapi/drm/amdxdna_accel.h @@ -87,7 +87,7 @@ struct amdxdna_drm_create_hwctx { /** * struct amdxdna_drm_destroy_hwctx - Destroy hardware context. * @handle: Hardware context handle. - * @pad: Structure padding. + * @pad: MBZ. */ struct amdxdna_drm_destroy_hwctx { __u32 handle; @@ -98,7 +98,7 @@ struct amdxdna_drm_destroy_hwctx { * struct amdxdna_cu_config - configuration for one CU * @cu_bo: CU configuration buffer bo handle. * @cu_func: Function of a CU. - * @pad: Structure padding. + * @pad: MBZ. */ struct amdxdna_cu_config { __u32 cu_bo; @@ -109,7 +109,7 @@ struct amdxdna_cu_config { /** * struct amdxdna_hwctx_param_config_cu - configuration for CUs in hardwar= e context * @num_cus: Number of CUs to configure. - * @pad: Structure padding. + * @pad: MBZ. * @cu_configs: Array of CU configurations of struct amdxdna_cu_config. */ struct amdxdna_hwctx_param_config_cu { @@ -122,7 +122,6 @@ enum amdxdna_drm_config_hwctx_param { DRM_AMDXDNA_HWCTX_CONFIG_CU, DRM_AMDXDNA_HWCTX_ASSIGN_DBG_BUF, DRM_AMDXDNA_HWCTX_REMOVE_DBG_BUF, - DRM_AMDXDNA_HWCTX_CONFIG_NUM }; =20 /** @@ -133,7 +132,7 @@ enum amdxdna_drm_config_hwctx_param { * @param_val: A structure specified by the param_type struct member. * @param_val_size: Size of the parameter buffer pointed to by the param_v= al. * If param_val is not a pointer, driver can ignore this. - * @pad: Structure padding. + * @pad: MBZ. * * Note: if the param_val is a pointer pointing to a buffer, the maximum s= ize * of the buffer is 4KiB(PAGE_SIZE). @@ -175,7 +174,7 @@ struct amdxdna_drm_create_bo { * @ext: MBZ. * @ext_flags: MBZ. * @handle: DRM buffer object handle. - * @pad: Structure padding. + * @pad: MBZ. * @map_offset: Returned DRM fake offset for mmap(). * @vaddr: Returned user VA of buffer. 0 in case user needs mmap(). * @xdna_addr: Returned XDNA device virtual address. --=20 2.34.1