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iommu_error class event can be enabled to trigger when an iommu error occurs. This trace event is intended to be called to report the error information. Trace information includes driver name, device name, iova, and flags. iommu_error:io_page_fault Signed-off-by: Shuah Khan <shuah.kh@samsung.com> Signed-off-by: Joerg Roedel <joro@8bytes.org>
27 lines
633 B
C
27 lines
633 B
C
/*
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* iommu trace points
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*
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* Copyright (C) 2013 Shuah Khan <shuah.kh@samsung.com>
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*
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*/
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#include <linux/string.h>
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#include <linux/types.h>
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#define CREATE_TRACE_POINTS
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#include <trace/events/iommu.h>
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/* iommu_group_event */
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EXPORT_TRACEPOINT_SYMBOL_GPL(add_device_to_group);
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EXPORT_TRACEPOINT_SYMBOL_GPL(remove_device_from_group);
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/* iommu_device_event */
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EXPORT_TRACEPOINT_SYMBOL_GPL(attach_device_to_domain);
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EXPORT_TRACEPOINT_SYMBOL_GPL(detach_device_from_domain);
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/* iommu_map_unmap */
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EXPORT_TRACEPOINT_SYMBOL_GPL(map);
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EXPORT_TRACEPOINT_SYMBOL_GPL(unmap);
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/* iommu_error */
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EXPORT_TRACEPOINT_SYMBOL_GPL(io_page_fault);
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