Re: [PATCH v2 4/4] iommufd/selftest: Add coverage for IOMMU_DEVICE_GET_HW_INFO ioctl

[Jason Gunthorpe]

On Wed, Mar 08, 2023 at 11:53:58PM -0800, Yi Liu wrote:
> diff --git a/drivers/iommu/iommufd/iommufd_test.h b/drivers/iommu/iommufd/iommufd_test.h
> index da1898a9128f..578691602d94 100644
> --- a/drivers/iommu/iommufd/iommufd_test.h
> +++ b/drivers/iommu/iommufd/iommufd_test.h
> @@ -100,4 +100,19 @@ struct iommu_test_cmd {
>  };
>  #define IOMMU_TEST_CMD _IO(IOMMUFD_TYPE, IOMMUFD_CMD_BASE + 32)
>  
> +/* Mock structs for IOMMU_DEVICE_GET_HW_INFO ioctl */
> +#define IOMMU_HW_INFO_TYPE_SELFTEST	0xfeedbeef
> +#define IOMMU_HW_INFO_SELFTEST_REGVAL	0xdeadbeef
> +
> +/**
> + * struct iommu_hw_info_selftest
> + *
> + * @flags: Must be set to 0
> + * @test_reg: Pass IOMMU_HW_INFO_SELFTEST_REGVAL to user selftest program
> + */

Probably don't need the comment, it is misleading

> +struct iommu_hw_info_selftest {

struct iommu_test_hw_info

Jason