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Thu, 27 Jul 2023 14:10:03 -0700 From: Nicolin Chen To: , CC: , , , , , , , , , , Subject: [PATCH v5 4/4] iommufd/selftest: Add coverage for IOMMU_SET/UNSET_DEV_DATA Date: Thu, 27 Jul 2023 14:09:43 -0700 Message-ID: <5b192832f6a8a02e24ba0712b1f9ab20735fd583.1690487690.git.nicolinc@nvidia.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM6NAM11FT065:EE_|MN2PR12MB4455:EE_ X-MS-Office365-Filtering-Correlation-Id: 0aa4579a-ec9f-441d-c6e8-08db8ee5e1b6 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230028)(4636009)(376002)(346002)(396003)(136003)(39860400002)(451199021)(82310400008)(40470700004)(46966006)(36840700001)(6666004)(7696005)(356005)(82740400003)(83380400001)(478600001)(47076005)(26005)(70586007)(7636003)(4326008)(54906003)(70206006)(110136005)(336012)(2616005)(186003)(36860700001)(426003)(5660300002)(7416002)(8936002)(8676002)(40460700003)(2906002)(41300700001)(316002)(40480700001)(86362001)(36756003);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 Jul 2023 21:10:18.7158 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 0aa4579a-ec9f-441d-c6e8-08db8ee5e1b6 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT065.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR12MB4455 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Add a new IOMMU_TEST_OP_DEV_CHECK_DATA to verify whether the dev_data is properly set/unset by the IOMMU_SET/UNSET_DEV_DATA. Signed-off-by: Nicolin Chen --- tools/testing/selftests/iommu/iommufd.c | 22 +++++++ tools/testing/selftests/iommu/iommufd_utils.h | 59 +++++++++++++++++++ 2 files changed, 81 insertions(+) diff --git a/tools/testing/selftests/iommu/iommufd.c b/tools/testing/selfte= sts/iommu/iommufd.c index bf0082d88a38..b437b890e4f5 100644 --- a/tools/testing/selftests/iommu/iommufd.c +++ b/tools/testing/selftests/iommu/iommufd.c @@ -123,6 +123,8 @@ TEST_F(iommufd, cmd_length) TEST_LENGTH(iommu_ioas_copy, IOMMU_IOAS_COPY); TEST_LENGTH(iommu_ioas_unmap, IOMMU_IOAS_UNMAP); TEST_LENGTH(iommu_option, IOMMU_OPTION); + TEST_LENGTH(iommu_set_dev_data, IOMMU_SET_DEV_DATA); + TEST_LENGTH(iommu_unset_dev_data, IOMMU_UNSET_DEV_DATA); TEST_LENGTH(iommu_vfio_ioas, IOMMU_VFIO_IOAS); #undef TEST_LENGTH } @@ -1517,6 +1519,26 @@ TEST_F(iommufd_mock_domain, alloc_hwpt) } } =20 +TEST_F(iommufd_mock_domain, set_dev_data) +{ + struct iommu_test_device_data dev_data =3D { + .val =3D IOMMU_DEVICE_DATA_SELFTEST, + }; + int i; + + for (i =3D 0; i !=3D variant->mock_domains; i++) { + test_err_set_dev_data(ENOENT, 0, &dev_data); + test_err_set_dev_data(EINVAL, self->idev_ids[i], NULL); + test_cmd_set_dev_data(self->idev_ids[i], &dev_data); + test_err_set_dev_data(EEXIST, self->idev_ids[i], &dev_data); + test_cmd_dev_check_data(self->idev_ids[i], dev_data.val); + test_err_unset_dev_data(ENOENT, 0); + test_cmd_unset_dev_data(self->idev_ids[i]); + test_err_unset_dev_data(ENOENT, self->idev_ids[i]); + test_cmd_dev_check_data(self->idev_ids[i], 0); + } +} + /* VFIO compatibility IOCTLs */ =20 TEST_F(iommufd, simple_ioctls) diff --git a/tools/testing/selftests/iommu/iommufd_utils.h b/tools/testing/= selftests/iommu/iommufd_utils.h index 9b3e5f36c4a3..eb756fffbc89 100644 --- a/tools/testing/selftests/iommu/iommufd_utils.h +++ b/tools/testing/selftests/iommu/iommufd_utils.h @@ -444,3 +444,62 @@ static int _test_cmd_get_hw_info(int fd, __u32 device_= id, EXPECT_ERRNO(_errno, \ _test_cmd_get_hw_info(self->fd, device_id, \ data_len, data)) + +#define test_cmd_dev_check_data(device_id, expected) = \ + ({ \ + struct iommu_test_cmd test_cmd =3D { \ + .size =3D sizeof(test_cmd), \ + .op =3D IOMMU_TEST_OP_DEV_CHECK_DATA, \ + .id =3D device_id, \ + .check_dev_data =3D { .val =3D expected }, \ + }; \ + ASSERT_EQ(0, \ + ioctl(self->fd, \ + _IOMMU_TEST_CMD(IOMMU_TEST_OP_DEV_CHECK_DATA), \ + &test_cmd)); \ + }) + +static int _test_cmd_set_dev_data(int fd, __u32 device_id, + struct iommu_test_device_data *dev_data) +{ + struct iommu_set_dev_data cmd =3D { + .size =3D sizeof(cmd), + .dev_id =3D device_id, + .data_uptr =3D (uint64_t)dev_data, + .data_len =3D sizeof(*dev_data), + }; + int ret; + + ret =3D ioctl(fd, IOMMU_SET_DEV_DATA, &cmd); + if (ret) + return ret; + return 0; +} + +#define test_cmd_set_dev_data(device_id, dev_data) \ + ASSERT_EQ(0, _test_cmd_set_dev_data(self->fd, device_id, dev_data)) + +#define test_err_set_dev_data(_errno, device_id, dev_data) \ + EXPECT_ERRNO(_errno, \ + _test_cmd_set_dev_data(self->fd, device_id, dev_data)) + +static int _test_cmd_unset_dev_data(int fd, __u32 device_id) +{ + struct iommu_unset_dev_data cmd =3D { + .size =3D sizeof(cmd), + .dev_id =3D device_id, + }; + int ret; + + ret =3D ioctl(fd, IOMMU_UNSET_DEV_DATA, &cmd); + if (ret) + return ret; + return 0; +} + +#define test_cmd_unset_dev_data(device_id) \ + ASSERT_EQ(0, _test_cmd_unset_dev_data(self->fd, device_id)) + +#define test_err_unset_dev_data(_errno, device_id) \ + EXPECT_ERRNO(_errno, \ + _test_cmd_unset_dev_data(self->fd, device_id)) --=20 2.41.0