RE: [RFC 5/7] iommufd/selftest: Extend IOMMU_TEST_OP_MOCK_DOMAIN to pass in pasid

From: Liu, Yi L yi.l.liu@intel.com Sent: Monday, October 9, 2023 4:51 PM

This extends IOMMU_TEST_OP_MOCK_DOMAIN to accept a pasid from caller. Hence it is able to cover the iommufd_device_bind_pasid() for SIOV virtual devices. pasid #0 is selected to mark the physical devices, non-zero pasid values would be considered as SIOV virtual device bind. Will add SIOV test cases later.

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@@ -62,6 +62,8 @@ struct iommu_test_cmd { __aligned_u64 length; } add_reserved; struct {

• 	/* #0 is invalid, any non-zero is meaningful */
  

• 	__u32 default_pasid;
  

#0 represents the physical device instead of being invalid.