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iommufd/selftest: Add domain_alloc_user() support in iommu mock
Add mock_domain_alloc_user() and a new test case for IOMMU_HWPT_ALLOC_NEST_PARENT. Link: https://lore.kernel.org/r/20230928071528.26258-6-yi.l.liu@intel.com Co-developed-by: Nicolin Chen <nicolinc@nvidia.com> Signed-off-by: Nicolin Chen <nicolinc@nvidia.com> Signed-off-by: Yi Liu <yi.l.liu@intel.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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4ff5421633
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408663619f
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@ -146,6 +146,8 @@ static void *mock_domain_hw_info(struct device *dev, u32 *length, u32 *type)
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return info;
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}
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static const struct iommu_ops mock_ops;
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static struct iommu_domain *mock_domain_alloc(unsigned int iommu_domain_type)
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{
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struct mock_iommu_domain *mock;
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@ -162,10 +164,26 @@ static struct iommu_domain *mock_domain_alloc(unsigned int iommu_domain_type)
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mock->domain.geometry.aperture_start = MOCK_APERTURE_START;
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mock->domain.geometry.aperture_end = MOCK_APERTURE_LAST;
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mock->domain.pgsize_bitmap = MOCK_IO_PAGE_SIZE;
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mock->domain.ops = mock_ops.default_domain_ops;
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mock->domain.type = iommu_domain_type;
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xa_init(&mock->pfns);
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return &mock->domain;
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}
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static struct iommu_domain *
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mock_domain_alloc_user(struct device *dev, u32 flags)
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{
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struct iommu_domain *domain;
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if (flags & (~IOMMU_HWPT_ALLOC_NEST_PARENT))
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return ERR_PTR(-EOPNOTSUPP);
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domain = mock_domain_alloc(IOMMU_DOMAIN_UNMANAGED);
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if (!domain)
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domain = ERR_PTR(-ENOMEM);
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return domain;
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}
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static void mock_domain_free(struct iommu_domain *domain)
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{
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struct mock_iommu_domain *mock =
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@ -307,6 +325,7 @@ static const struct iommu_ops mock_ops = {
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.pgsize_bitmap = MOCK_IO_PAGE_SIZE,
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.hw_info = mock_domain_hw_info,
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.domain_alloc = mock_domain_alloc,
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.domain_alloc_user = mock_domain_alloc_user,
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.capable = mock_domain_capable,
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.set_platform_dma_ops = mock_domain_set_plaform_dma_ops,
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.device_group = generic_device_group,
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@ -114,6 +114,7 @@ TEST_F(iommufd, cmd_length)
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TEST_LENGTH(iommu_destroy, IOMMU_DESTROY);
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TEST_LENGTH(iommu_hw_info, IOMMU_GET_HW_INFO);
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TEST_LENGTH(iommu_hwpt_alloc, IOMMU_HWPT_ALLOC);
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TEST_LENGTH(iommu_ioas_alloc, IOMMU_IOAS_ALLOC);
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TEST_LENGTH(iommu_ioas_iova_ranges, IOMMU_IOAS_IOVA_RANGES);
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TEST_LENGTH(iommu_ioas_allow_iovas, IOMMU_IOAS_ALLOW_IOVAS);
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@ -1404,13 +1405,28 @@ TEST_F(iommufd_mock_domain, alloc_hwpt)
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int i;
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for (i = 0; i != variant->mock_domains; i++) {
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uint32_t hwpt_id[2];
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uint32_t stddev_id;
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uint32_t hwpt_id;
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test_cmd_hwpt_alloc(self->idev_ids[i], self->ioas_id, &hwpt_id);
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test_cmd_mock_domain(hwpt_id, &stddev_id, NULL, NULL);
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test_err_hwpt_alloc(EOPNOTSUPP,
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self->idev_ids[i], self->ioas_id,
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~IOMMU_HWPT_ALLOC_NEST_PARENT, &hwpt_id[0]);
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test_cmd_hwpt_alloc(self->idev_ids[i], self->ioas_id,
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0, &hwpt_id[0]);
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test_cmd_hwpt_alloc(self->idev_ids[i], self->ioas_id,
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IOMMU_HWPT_ALLOC_NEST_PARENT, &hwpt_id[1]);
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/* Do a hw_pagetable rotation test */
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test_cmd_mock_domain_replace(self->stdev_ids[i], hwpt_id[0]);
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EXPECT_ERRNO(EBUSY, _test_ioctl_destroy(self->fd, hwpt_id[0]));
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test_cmd_mock_domain_replace(self->stdev_ids[i], hwpt_id[1]);
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EXPECT_ERRNO(EBUSY, _test_ioctl_destroy(self->fd, hwpt_id[1]));
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test_cmd_mock_domain_replace(self->stdev_ids[i], self->ioas_id);
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test_ioctl_destroy(hwpt_id[1]);
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test_cmd_mock_domain(hwpt_id[0], &stddev_id, NULL, NULL);
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test_ioctl_destroy(stddev_id);
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test_ioctl_destroy(hwpt_id);
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test_ioctl_destroy(hwpt_id[0]);
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}
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}
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@ -615,7 +615,7 @@ TEST_FAIL_NTH(basic_fail_nth, device)
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if (_test_cmd_get_hw_info(self->fd, idev_id, &info, sizeof(info)))
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return -1;
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if (_test_cmd_hwpt_alloc(self->fd, idev_id, ioas_id, &hwpt_id))
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if (_test_cmd_hwpt_alloc(self->fd, idev_id, ioas_id, 0, &hwpt_id))
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return -1;
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if (_test_cmd_mock_domain_replace(self->fd, stdev_id, ioas_id2, NULL))
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@ -103,10 +103,11 @@ static int _test_cmd_mock_domain_replace(int fd, __u32 stdev_id, __u32 pt_id,
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pt_id, NULL))
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static int _test_cmd_hwpt_alloc(int fd, __u32 device_id, __u32 pt_id,
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__u32 *hwpt_id)
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__u32 flags, __u32 *hwpt_id)
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{
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struct iommu_hwpt_alloc cmd = {
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.size = sizeof(cmd),
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.flags = flags,
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.dev_id = device_id,
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.pt_id = pt_id,
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};
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@ -120,8 +121,12 @@ static int _test_cmd_hwpt_alloc(int fd, __u32 device_id, __u32 pt_id,
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return 0;
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}
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#define test_cmd_hwpt_alloc(device_id, pt_id, hwpt_id) \
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ASSERT_EQ(0, _test_cmd_hwpt_alloc(self->fd, device_id, pt_id, hwpt_id))
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#define test_cmd_hwpt_alloc(device_id, pt_id, flags, hwpt_id) \
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ASSERT_EQ(0, _test_cmd_hwpt_alloc(self->fd, device_id, \
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pt_id, flags, hwpt_id))
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#define test_err_hwpt_alloc(_errno, device_id, pt_id, flags, hwpt_id) \
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EXPECT_ERRNO(_errno, _test_cmd_hwpt_alloc(self->fd, device_id, \
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pt_id, flags, hwpt_id))
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static int _test_cmd_access_replace_ioas(int fd, __u32 access_id,
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unsigned int ioas_id)
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