From nobody Mon Feb 9 14:33:41 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; arc=pass (i=1 dmarc=pass fromdomain=nvidia.com); dmarc=pass(p=reject dis=none) header.from=nvidia.com ARC-Seal: i=2; a=rsa-sha256; t=1768161976; cv=pass; d=zohomail.com; s=zohoarc; b=cqpzAmf7z1mB30vPBidie3AvB3UXkVYVPOqnaiWfFQQBhIsowUhaG8cmVMzK6U4aC3AimpQx6CjLc7MOCuYf2hvbaLmel5dH9d4/eCZ3LrwVOgX2hiOkps7j7vT2UjpRwz2KS0UISWwizU9AHnlpvwzDsUFnEUHm0bUHRa5j7yI= ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1768161976; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=sWACz1lNtfF9rvBxvuwfjQ8FUjSX1kx3a33iX1xb7RM=; b=RxcFjdnyi/vTVmUb2T4Em9dUyaq2vfEqQo3gCK+TkOJvWY+wH7rVnseROQZpoC17tGuRy6ZNW4HC9TgMib5q9yC38mzqPO1GNEL3sIX3Y+Xe+FbbPg2n4o6R0yj64iQzztUcR/0UpMd1g+G1IT1u+W6qQoYh6V/QlfOgrRcXMkg= ARC-Authentication-Results: i=2; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; arc=pass (i=1 dmarc=pass fromdomain=nvidia.com); dmarc=pass header.from= (p=reject dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1768161976291369.3902809815198; Sun, 11 Jan 2026 12:06:16 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vf1Ye-0007LN-0P; Sun, 11 Jan 2026 14:57:04 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vf1YP-0006vc-6g; Sun, 11 Jan 2026 14:56:49 -0500 Received: from mail-westus3azlp170100009.outbound.protection.outlook.com ([2a01:111:f403:c107::9] helo=PH7PR06CU001.outbound.protection.outlook.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vf1YN-0003tP-Pe; Sun, 11 Jan 2026 14:56:48 -0500 Received: from SA1PR03CA0005.namprd03.prod.outlook.com (2603:10b6:806:2d3::6) by IA1PR12MB7565.namprd12.prod.outlook.com (2603:10b6:208:42f::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9499.7; Sun, 11 Jan 2026 19:56:41 +0000 Received: from SN1PEPF0002BA4F.namprd03.prod.outlook.com (2603:10b6:806:2d3:cafe::5) by SA1PR03CA0005.outlook.office365.com (2603:10b6:806:2d3::6) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.20.9499.7 via Frontend Transport; Sun, 11 Jan 2026 19:56:44 +0000 Received: from mail.nvidia.com (216.228.117.161) by SN1PEPF0002BA4F.mail.protection.outlook.com (10.167.242.72) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9520.1 via Frontend Transport; Sun, 11 Jan 2026 19:56:41 +0000 Received: from rnnvmail201.nvidia.com (10.129.68.8) by mail.nvidia.com (10.129.200.67) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.20; Sun, 11 Jan 2026 11:56:36 -0800 Received: from NV-2Y5XW94.nvidia.com (10.126.231.35) by rnnvmail201.nvidia.com (10.129.68.8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.20; Sun, 11 Jan 2026 11:56:31 -0800 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=jcQr9IrPHtR16706RA3AwdkS+kcFpeA/s1hCW5wdEpGR04K3d3w+MUFwDxf5bOWU3RQMDT/UA4MKd9B9cRf3JZB171aKnGBAg9u+4p8HZQmL8ih7NZiwC+FpPSZ1JdHKBdM5G83Z3yeAVGA5u5u92DiiihW5zTetgBsmNy18u1s/ZKtYmZwNrMiZ8/Wt5RwbrV/BSvdGHIa6o2uUXM1YXTpXsRSirczSWZvkkqbUvU2nLMBCat1CZ2zb/DyWms5juToSDQ3y7+FAiMHmLezKFUEZC4PwoySLe2GW2L7cD2c8+C33KDv/+PQIR8dAB75NRdG6QK5r1PHZf0n9gjp7cw== 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=sWACz1lNtfF9rvBxvuwfjQ8FUjSX1kx3a33iX1xb7RM=; b=etRNQSSTt43Q3x6hdWarkrpYjJxK9Nf9D1uy1FhM89fKdwq379Jsq5xnKWOnRTFICWSlLcwhLq5hl3SCbFO5re5ngjEtqGlFDC1R0hwjiRRXvZHMhQFqq7un8cadVCO9Lj0+UrNbMIVWpE52aRH19Rz0yMI+aOcMktozWcPLd1e6fO16AOzLYwPVClerfX43pO935Zd+VJgJ340gi/ZA22c9vfRs2iyYOzgIOPhLDXBjSHNrmXs3lrxUUCl9/hhZkiHtNnTIivCZpiW0oJdfyXL2ncWCZRG+jKU4dsZEo4Uy69QFmVwS1IT4pkrfSCzln147SJMAA4TnJ48YbQpXnA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 216.228.117.161) smtp.rcpttodomain=nongnu.org smtp.mailfrom=nvidia.com; dmarc=pass (p=reject sp=reject pct=100) action=none header.from=nvidia.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=sWACz1lNtfF9rvBxvuwfjQ8FUjSX1kx3a33iX1xb7RM=; b=HnqBm34JFtxUtdYQqSY59NyuDLPWFgUKPb+XxBg0LXjJlpkk/p4uSUK7xKmMcA23j1cXycpKpNVCAD4vnYW5kORQy41AiaXT0PkiW5Opu0bMWJKKs0KLlLew0qYr8/ptALi5q56qaNyCWVT0+6fjlTDs4eC+ldAUYB3ItwMZ4Vlx38Zn76pNAVGUqBfVLDKOBzao33u7IjgjDc3mGjwZN3ag3MQCIt4aI2XtbfBqmxHF6u+KVjK8opmXxedoTUavrURFjCPbVfdegMoZrW7M/SOzXKSSWmlyADqNMYlBfoF3FzsYji8j/aBkFt1p+SaqMeR7m6Q22RqxHR2oCCcSow== X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 216.228.117.161) smtp.mailfrom=nvidia.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=nvidia.com; Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: Pass (protection.outlook.com: domain of nvidia.com designates 216.228.117.161 as permitted sender) receiver=protection.outlook.com; client-ip=216.228.117.161; helo=mail.nvidia.com; pr=C From: Shameer Kolothum To: , CC: , , , , , , , , , , , , , , , , , Subject: [PATCH v7 10/36] hw/arm/smmuv3: Implement get_viommu_cap() callback Date: Sun, 11 Jan 2026 19:52:56 +0000 Message-ID: <20260111195508.106943-11-skolothumtho@nvidia.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260111195508.106943-1-skolothumtho@nvidia.com> References: <20260111195508.106943-1-skolothumtho@nvidia.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.126.231.35] X-ClientProxiedBy: rnnvmail202.nvidia.com (10.129.68.7) To rnnvmail201.nvidia.com (10.129.68.8) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SN1PEPF0002BA4F:EE_|IA1PR12MB7565:EE_ X-MS-Office365-Filtering-Correlation-Id: d8ccf519-7986-43b4-0371-08de514b8a20 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; ARA:13230040|7416014|1800799024|82310400026|376014|36860700013; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?Hn75bNW5adOUUzQ2g1AOmoAYlEhjDhGJ/sHbM2swjEk2VrCRKuXpXSXqOK7i?= =?us-ascii?Q?KALjMCP9vwV1DKml8EgnGgbanpm4ADII7vVrW2oTkhFZTeEOF5S+lX7baFao?= =?us-ascii?Q?H1DXBWVW6YDqhR6cDyIKHnw7/PYnaTUXMGHCBa6Su5m2GTheEHlFMKTIiSyr?= =?us-ascii?Q?7cNYD8tmbqWNYm4jKTN+Y7QpUBT78TN61h0AGLXPK8OkcZxIu1aKRI/51Ah3?= =?us-ascii?Q?n1YKPoRWyVjmnVr3zX565pNF4cJpIOUEmLFjTuLx+CspV6SPpAgvUPodYwCG?= =?us-ascii?Q?7IlTx2dc3XrYEWqGj077+v1tfH6lhEuZCWoNBP/4FdwMJQtT0WIssLMMtU7O?= =?us-ascii?Q?zes1LHHPaiHQKqtbN7KbesZi4eLnu13BelWwebW1/Clan7jDeTl6G8202Y+m?= =?us-ascii?Q?XZpv7vG36QmS8XQcRR885ucIrFGd2K8qVLq434Trm3aXbVV1stGtzUOEttKh?= =?us-ascii?Q?uN0IhzMO9QHl48YLT+UuNLgIItI0xE95SX7fDfXsF/RlYRa8hDw7l/SDWtyx?= =?us-ascii?Q?C1FKZJwHP/aHWvF3RKALahmvYRuX8g1ntQdPEemgNRRz/nDkihXPXqncYFeR?= =?us-ascii?Q?y/aapUK8CNBOvD8EGnAkvlgG95t7ghgiDhF/D3Ebqm2JdSY8A8tAO/M1Z5AL?= =?us-ascii?Q?MFe/eWp39lpP3i3phZR4dyxnhmXAD6T3k09BP/4PHpGQFEK03hNVAt/Qgzqs?= =?us-ascii?Q?bDaW0pD/yXdxWWsz3ylVOxKHQ4jXNMG6D+gwYcYBRUCrYSL5FEWy/silmbbq?= =?us-ascii?Q?Ucju3beCf5X1yNteXQuFi0LVk1OPx2Dcfy33flQyNh8RFJJL+10qZ7Db0Hia?= =?us-ascii?Q?RtPGuuxddU2HwWNqGsjB4Oon9L+IP0m8zHRBI3g/7p8jhmclukXGpLIpIM2X?= =?us-ascii?Q?9TMWkVHCRa4FRZdFu2px4ZAdF+a6e2OSmKcH587KfZ+0vxAZCYVgb5aO/mki?= =?us-ascii?Q?V7CrxQjzuGS1uAjCWxGfNSwYZpY1Gu8QdPR3wTJawyM2hR2rTvxUZzIv15MX?= =?us-ascii?Q?drBklwq/b1rGz4Qd3edVSmh8RPrTbBf/+1bWp0ZhNJZmjr3dSMzlHTnx7L1t?= =?us-ascii?Q?HxMxWHVHi/kZ87NAHQgEPugVUnCnwzG0RrD13uOT3WjnZ1BPGxtbVGyZXhxF?= =?us-ascii?Q?IF6h6opld8cryn/DVgJBT9LYKtgjQJ/Y7utaejDB8VZfxG2S+XRWHe114LDC?= =?us-ascii?Q?G1Xycb8dMN+BfBx4rMtgKvHc5ZtNmvkgmn+Q9rtHRgMtLFhw2wUjX3cOnzWQ?= =?us-ascii?Q?Rxgbc0geziiIo/RjetjkJGqMkRYOk5HIMPMUPggVLYMOkHr6a1IN3bb9Aeog?= =?us-ascii?Q?MlNDRrCPTn+LvKBVp9ZoBpFIqJjtQvHSm7h9yaZWGXCAk7vOf5qdR0UDSENG?= =?us-ascii?Q?OHH0+vENykl4lMDCYVqINthMg2Y/7c338+uRUvGR0rfHs7uRa3rHVQC8/90C?= =?us-ascii?Q?j9Uvq26RjI8oRBakDQ5rQS9C77nC6YNnmmqUAe/R/6GKsgaj28/AM66b5eiF?= =?us-ascii?Q?fbLRYRq2d+ubpJIttX+t78mKp9TBFMRUXF4zqRa0hCDap+6LNjA5cfbbMli1?= =?us-ascii?Q?B2H2CxgbBuDMlYSTAaQ=3D?= X-Forefront-Antispam-Report: CIP:216.228.117.161; CTRY:US; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:mail.nvidia.com; PTR:dc6edge2.nvidia.com; CAT:NONE; SFS:(13230040)(7416014)(1800799024)(82310400026)(376014)(36860700013); DIR:OUT; SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Jan 2026 19:56:41.3504 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: d8ccf519-7986-43b4-0371-08de514b8a20 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.117.161]; Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: SN1PEPF0002BA4F.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA1PR12MB7565 Received-SPF: permerror client-ip=2a01:111:f403:c107::9; envelope-from=skolothumtho@nvidia.com; helo=PH7PR06CU001.outbound.protection.outlook.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @Nvidia.com) X-ZM-MESSAGEID: 1768161978234158500 Content-Type: text/plain; charset="utf-8" For accelerated SMMUv3, we need nested parent domain creation. Add the callback support so that VFIO can create a nested parent. Reviewed-by: Nicolin Chen Reviewed-by: Jonathan Cameron Signed-off-by: Shameer Kolothum Tested-by: Zhangfei Gao Reviewed-by: Eric Auger Signed-off-by: Shameer Kolothum --- hw/arm/smmuv3-accel.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/hw/arm/smmuv3-accel.c b/hw/arm/smmuv3-accel.c index 2fcd301322..be09cf8b73 100644 --- a/hw/arm/smmuv3-accel.c +++ b/hw/arm/smmuv3-accel.c @@ -10,6 +10,7 @@ #include "qemu/error-report.h" =20 #include "hw/arm/smmuv3.h" +#include "hw/core/iommu.h" #include "hw/pci/pci_bridge.h" #include "hw/pci-host/gpex.h" #include "hw/vfio/pci.h" @@ -129,9 +130,21 @@ static AddressSpace *smmuv3_accel_find_add_as(PCIBus *= bus, void *opaque, } } =20 +static uint64_t smmuv3_accel_get_viommu_flags(void *opaque) +{ + /* + * We return VIOMMU_FLAG_WANT_NESTING_PARENT to inform VFIO core to cr= eate a + * nesting parent which is required for accelerated SMMUv3 support. + * The real HW nested support should be reported from host SMMUv3 and = if + * it doesn't, the nesting parent allocation will fail anyway in VFIO = core. + */ + return VIOMMU_FLAG_WANT_NESTING_PARENT; +} + static const PCIIOMMUOps smmuv3_accel_ops =3D { .supports_address_space =3D smmuv3_accel_supports_as, .get_address_space =3D smmuv3_accel_find_add_as, + .get_viommu_flags =3D smmuv3_accel_get_viommu_flags, }; =20 static void smmuv3_accel_as_init(SMMUv3State *s) --=20 2.43.0