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iommu: Add iommu_error class event to iommu trace

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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 <[email protected]>
Signed-off-by: Joerg Roedel <[email protected]>
This commit is contained in:
Shuah Khan 2013-09-24 15:21:19 -06:00 • committed by Joerg Roedel
commit 04fa2f7f83
2 changed files with 36 additions and 0 deletions
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3
drivers/iommu/iommu-traces.c
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@ -22,3 +22,6 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(detach_device_from_domain);
/* iommu_map_unmap */
EXPORT_TRACEPOINT_SYMBOL_GPL(map);
EXPORT_TRACEPOINT_SYMBOL_GPL(unmap);
/* iommu_error */
EXPORT_TRACEPOINT_SYMBOL_GPL(io_page_fault);