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authorPhilippe Mathieu-Daudé <philmd@redhat.com>2020-11-03 03:07:30 +0100
committerStefan Hajnoczi <stefanha@redhat.com>2020-11-03 19:06:23 +0000
commit2817fbcee060cfdf3899fbab97e185272f5f83ec (patch)
tree4470d15ebe382e7b91e91f8526e814cfd96b02dd /util/vfio-helpers.c
parentdf058222e77963e9bece723d19142354ed443d4a (diff)
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util/vfio-helpers: Trace where BARs are mapped
For debugging purpose, trace where a BAR is mapped. Reviewed-by: Fam Zheng <fam@euphon.net> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20201103020733.2303148-5-philmd@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Tested-by: Eric Auger <eric.auger@redhat.com>
Diffstat (limited to 'util/vfio-helpers.c')
-rw-r--r--util/vfio-helpers.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/util/vfio-helpers.c b/util/vfio-helpers.c
index cd6287c..278c549 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;