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-rw-r--r--util/trace-events1
-rw-r--r--util/vfio-helpers.c2
2 files changed, 3 insertions, 0 deletions
diff --git a/util/trace-events b/util/trace-events
index 0753e4a0ed..52d43cda3f 100644
--- a/util/trace-events
+++ b/util/trace-events
@@ -88,3 +88,4 @@ qemu_vfio_dma_unmap(void *s, void *host) "s %p host %p"
 qemu_vfio_pci_read_config(void *buf, int ofs, int size, uint64_t region_ofs, uint64_t region_size) "read cfg ptr %p ofs 0x%x size 0x%x (region addr 0x%"PRIx64" size 0x%"PRIx64")"
 qemu_vfio_pci_write_config(void *buf, int ofs, int size, uint64_t region_ofs, uint64_t region_size) "write cfg ptr %p ofs 0x%x size 0x%x (region addr 0x%"PRIx64" size 0x%"PRIx64")"
 qemu_vfio_region_info(const char *desc, uint64_t region_ofs, uint64_t region_size, uint32_t cap_offset) "region '%s' addr 0x%"PRIx64" size 0x%"PRIx64" cap_ofs 0x%"PRIx32
+qemu_vfio_pci_map_bar(int index, uint64_t region_ofs, uint64_t region_size, int ofs, void *host) "map region bar#%d addr 0x%"PRIx64" size 0x%"PRIx64" ofs 0x%x host %p"
diff --git a/util/vfio-helpers.c b/util/vfio-helpers.c
index cd6287c3a9..278c54902e 100644
--- a/util/vfio-helpers.c
+++ b/util/vfio-helpers.c
@@ -166,6 +166,8 @@ void *qemu_vfio_pci_map_bar(QEMUVFIOState *s, int index,
     p = mmap(NULL, MIN(size, s->bar_region_info[index].size - offset),
              prot, MAP_SHARED,
              s->device, s->bar_region_info[index].offset + offset);
+    trace_qemu_vfio_pci_map_bar(index, s->bar_region_info[index].offset ,
+                                size, offset, p);
     if (p == MAP_FAILED) {
         error_setg_errno(errp, errno, "Failed to map BAR region");
         p = NULL;