iommu: Change iommu driver to call attach_device_to_domain trace event
Change iommu driver to call attach_device_to_domain trace event. This iommu_device class event can be enabled to trigger when devices are attached to a domain. Trace information includes device name. Testing: Added trace calls to iommu_prepare_identity_map() for testing some of the conditions that are hard to trigger. Here is the trace from the testing: swapper/0-1 [003] .... 1.854102: attach_device_to_domain: IOMMU: device=0000:00:02.0 Signed-off-by: NShuah Khan <shuah.kh@samsung.com> Signed-off-by: NJoerg Roedel <joro@8bytes.org>
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