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iommufd/selftest: Add coverage for IOMMU_GET_HW_INFO ioctl

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Add a mock_domain_hw_info function and an iommu_test_hw_info data
structure. This allows to test the IOMMU_GET_HW_INFO ioctl passing the
test_reg value for the mock_dev.

Link: https://lore.kernel.org/r/20230818101033.4100-5-yi.l.liu@intel.com
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Nicolin Chen 2023-08-18 03:10:32 -07:00 • committed by Jason Gunthorpe
commit af4fde93c3
5 changed files with 128 additions and 1 deletions
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