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Tue, 25 Feb 2025 09:26:05 -0800 From: Nicolin Chen To: , , , CC: , , , , , , , , , , , , , , , , , , , Subject: [PATCH v8 09/14] iommufd/selftest: Add IOMMU_TEST_OP_TRIGGER_VEVENT for vEVENTQ coverage Date: Tue, 25 Feb 2025 09:25:37 -0800 Message-ID: X-Mailer: git-send-email 2.43.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-NV-OnPremToCloud: AnonymousSubmission X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS1PEPF0001708F:EE_|MW3PR12MB4476:EE_ X-MS-Office365-Filtering-Correlation-Id: 03f0e077-d662-41ee-6dfe-08dd55c184b5 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; ARA:13230040|376014|7416014|82310400026|1800799024|36860700013; X-Microsoft-Antispam-Message-Info: FlQGHwRvxBIFlkjEOgPu/iJ8MsnduR/Qmtvs3kGe8U+k4AxzDJjixQhM6Obz+AXV/cpNqIaZ+rjoIGjb+1oa9QSvImKZqq3Y6L4DhH0M3tH4nz3QxrgYb4K7c3vHR5Lv1GDHvIL6CzJfx5faKRZK0Jh0wK2ZnRk1s6GQKA9f1D+yMexHSXRsHFvlWg8fjIfW+Wn7p9JLh0AdIx8yx2XrPrsG347zV1EUw/bu2/gbxz6IxnUNTgp5iG6sHhKiNlW/4moN/SVaaGuUdAbY/sgSWn9EYza/oOhjPX5eA7nobqiABQ2KzOlo8CJwJUbqlwie7Ev14P+2GnitSDj/J4jyphBSNv6yS4nfCFkMdTWNWjExMJFxLwrqgUnNzBLs2Em4mYyWaB8pOF5qStDwPc78bfTuQ++F+q3MioSq5rHcpHQoO/KJSXHt+Y7tzpd46grV1KHGxtgcQEc9ouL+dBDjnsSgmiX1NwYwLZifH50DbNOWcXfmEcMimeCDV64G+ScLBShyUdU+IAhEBuFB+Z++tK6jPxr7QSlWikcxH0/61uNL18ISpfviBZPgHEccFYklo9z1Bu+8CiEDpf5D6T46h6Tub0S6X+gK/OjRKdWBpP6DHyRmRqyewdUbrm9nz5NQiY/q0iyRHy+Jxh43XLrMrFz2QAHVdwZ7o0cP2kEahnnWp4th8nTHODNo7c+foWPhu/3VkUz+ppNZgABIWV9fbk4z4O1/ryM4G9/e3WlTUWjp/eq7TOWHlECWJckM+7vQ23nTIJwNYceBaTUShjX8DmeHAOoEtFVgwvkACLpuajqoBXSdyhObE7WFtwH2f0aVrJY6wu0kW3vrRPdxVBF0hBtwB8w8rAje36eeCgZt5GCNbfWAKIUiYCjPYVfMr5vEDz6xtpoo1FPUdyyKVAmAyNeq3U2cwca3GymVtIdqp+bFuDrIYYld6HS/295Lw8p9ISUSHNncGVzxjwcZC1DavaeGLSKeGA+y49XileLotydj1SeXOcp6Rfo4v7v/XO/4kN46Wn3RrcgawmUieneoMRYDXWBZu4wLSmt3ioOvIdXUfknAoh4n/luqInl6ZlCWn5VXO2wz6PhDELr3lUJe8w/q96rqvIydxBPLULVv/lBcjjeaUrwyAEoDgzUSDng3STFBgYcsvAoP5sCgtHo68sSfl6gNHHMNDjElaSvRs7qMrq87OVQEBr0ZbvfFgyfYAyUUmxSId3PCGzzCiXudpmEQLTVSpZise2mtDqBoQAzR5M8EBHp3neBBzuaYKtaYrFGUhHTsmGfPAskq+pCw350TVtGJUVQCrdR80xI41MQYBM2MROrecjL0SY7CGZHjF/JUXcOqpGadU3l+2yPHRkcsiIITYich5pg2B/ZZh9+nbhKVEsGnf5NRKr+c7ueKZQ2C1BacskWUS5Etcrq3fW2KaPJqMluV9ffOmP3PViVgBHgToLencR2UFLyrLpgVGfwMdHLMeMxLlBPc6PS5MTxNZ484DO8sSHIXbp+I6LI= 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)(376014)(7416014)(82310400026)(1800799024)(36860700013); DIR:OUT; SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 25 Feb 2025 17:26:19.8291 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 03f0e077-d662-41ee-6dfe-08dd55c184b5 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: DS1PEPF0001708F.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW3PR12MB4476 The handler will get vDEVICE object from the given mdev and convert it to its per-vIOMMU virtual ID to mimic a real IOMMU driver. Reviewed-by: Kevin Tian Signed-off-by: Nicolin Chen --- drivers/iommu/iommufd/iommufd_test.h | 10 ++++++++++ drivers/iommu/iommufd/selftest.c | 30 ++++++++++++++++++++++++++++ 2 files changed, 40 insertions(+) diff --git a/drivers/iommu/iommufd/iommufd_test.h b/drivers/iommu/iommufd/iommufd_test.h index a6b7a163f636..87e9165cea27 100644 --- a/drivers/iommu/iommufd/iommufd_test.h +++ b/drivers/iommu/iommufd/iommufd_test.h @@ -24,6 +24,7 @@ enum { IOMMU_TEST_OP_MD_CHECK_IOTLB, IOMMU_TEST_OP_TRIGGER_IOPF, IOMMU_TEST_OP_DEV_CHECK_CACHE, + IOMMU_TEST_OP_TRIGGER_VEVENT, }; enum { @@ -145,6 +146,9 @@ struct iommu_test_cmd { __u32 id; __u32 cache; } check_dev_cache; + struct { + __u32 dev_id; + } trigger_vevent; }; __u32 last; }; @@ -212,4 +216,10 @@ struct iommu_viommu_invalidate_selftest { __u32 cache_id; }; +#define IOMMU_VEVENTQ_TYPE_SELFTEST 0xbeefbeef + +struct iommu_viommu_event_selftest { + __u32 virt_id; +}; + #endif diff --git a/drivers/iommu/iommufd/selftest.c b/drivers/iommu/iommufd/selftest.c index ba84bacbce2e..d55dde28e9bc 100644 --- a/drivers/iommu/iommufd/selftest.c +++ b/drivers/iommu/iommufd/selftest.c @@ -1621,6 +1621,34 @@ static int iommufd_test_trigger_iopf(struct iommufd_ucmd *ucmd, return 0; } +static int iommufd_test_trigger_vevent(struct iommufd_ucmd *ucmd, + struct iommu_test_cmd *cmd) +{ + struct iommu_viommu_event_selftest test = {}; + struct iommufd_device *idev; + struct mock_dev *mdev; + int rc = -ENOENT; + + idev = iommufd_get_device(ucmd, cmd->trigger_vevent.dev_id); + if (IS_ERR(idev)) + return PTR_ERR(idev); + mdev = to_mock_dev(idev->dev); + + down_read(&mdev->viommu_rwsem); + if (!mdev->viommu || !mdev->vdev_id) + goto out_unlock; + + test.virt_id = mdev->vdev_id; + rc = iommufd_viommu_report_event(&mdev->viommu->core, + IOMMU_VEVENTQ_TYPE_SELFTEST, &test, + sizeof(test)); +out_unlock: + up_read(&mdev->viommu_rwsem); + iommufd_put_object(ucmd->ictx, &idev->obj); + + return rc; +} + void iommufd_selftest_destroy(struct iommufd_object *obj) { struct selftest_obj *sobj = to_selftest_obj(obj); @@ -1702,6 +1730,8 @@ int iommufd_test(struct iommufd_ucmd *ucmd) cmd->dirty.flags); case IOMMU_TEST_OP_TRIGGER_IOPF: return iommufd_test_trigger_iopf(ucmd, cmd); + case IOMMU_TEST_OP_TRIGGER_VEVENT: + return iommufd_test_trigger_vevent(ucmd, cmd); default: return -EOPNOTSUPP; }