From 94aedac49d92b22995d7b9092c6551b8b9924320 Mon Sep 17 00:00:00 2001
From: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Date: Thu, 4 Nov 2021 09:16:20 +0200
Subject: [PATCH] iommu: Log iova range in map/unmap trace events
In case of an iommu page fault, the faulting iova is logged
in trace_io_page_fault. It is therefore convenient to log
the iova range in mapping/unmapping trace events so that it
is easier to see if the faulting iova was recently in any of
those ranges.
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Link: https://lore.kernel.org/r/20211104071620.27290-1-dafna.hirschfeld@collabora.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
include/trace/events/iommu.h | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/include/trace/events/iommu.h b/include/trace/events/iommu.h
index 72b4582322ff5..29096fe12623d 100644
--- a/include/trace/events/iommu.h
+++ b/include/trace/events/iommu.h
@@ -101,8 +101,9 @@ TRACE_EVENT(map,
__entry->size = size;
),
- TP_printk("IOMMU: iova=0x%016llx paddr=0x%016llx size=%zu",
- __entry->iova, __entry->paddr, __entry->size
+ TP_printk("IOMMU: iova=0x%016llx - 0x%016llx paddr=0x%016llx size=%zu",
+ __entry->iova, __entry->iova + __entry->size, __entry->paddr,
+ __entry->size
)
);
@@ -124,8 +125,9 @@ TRACE_EVENT(unmap,
__entry->unmapped_size = unmapped_size;
),
- TP_printk("IOMMU: iova=0x%016llx size=%zu unmapped_size=%zu",
- __entry->iova, __entry->size, __entry->unmapped_size
+ TP_printk("IOMMU: iova=0x%016llx - 0x%016llx size=%zu unmapped_size=%zu",
+ __entry->iova, __entry->iova + __entry->size,
+ __entry->size, __entry->unmapped_size
)
);
--
2.30.2