diff mbox series

[07/16] util/vfio-helpers: Trace where BARs are mapped

Message ID 20201020172428.2220726-8-philmd@redhat.com
State Superseded
Headers show
Series util/vfio-helpers: Allow using multiple MSIX IRQs | expand

Commit Message

Philippe Mathieu-Daudé Oct. 20, 2020, 5:24 p.m. UTC 
For debugging purpose, trace where a BAR is mapped.

Reviewed-by: Fam Zheng <fam@euphon.net>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 util/vfio-helpers.c | 2 ++
 util/trace-events   | 1 +
 2 files changed, 3 insertions(+)

Comments

Stefan Hajnoczi Oct. 22, 2020, 2:13 p.m. UTC | #1 
On Tue, Oct 20, 2020 at 07:24:19PM +0200, Philippe Mathieu-Daudé wrote:
> For debugging purpose, trace where a BAR is mapped.

> 

> Reviewed-by: Fam Zheng <fam@euphon.net>

> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>

> ---

>  util/vfio-helpers.c | 2 ++

>  util/trace-events   | 1 +

>  2 files changed, 3 insertions(+)


Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
diff mbox series

Patch

diff --git a/util/vfio-helpers.c b/util/vfio-helpers.c
index 4204ce55445..95e010bed6d 100644
--- a/util/vfio-helpers.c
+++ b/util/vfio-helpers.c
@@ -167,6 +167,8 @@  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;
diff --git a/util/trace-events b/util/trace-events
index a6a541270b7..7c92f2f8c1a 100644
--- a/util/trace-events
+++ b/util/trace-events
@@ -89,3 +89,4 @@  qemu_vfio_iommu_iova_pgsizes(uint64_t iova_pgsizes) "iommu page size bitmask: 0x
 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 %d (region ofs 0x%"PRIx64" size %"PRId64")"
 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 %d (region ofs 0x%"PRIx64" size %"PRId64")"
 qemu_vfio_region_info(const char *desc, uint64_t offset, uint64_t size, uint32_t cap_offset) "region '%s' ofs 0x%"PRIx64" size %"PRId64" cap_ofs %"PRId32
+qemu_vfio_pci_map_bar(int index, uint64_t region_ofs, uint64_t region_size, int ofs, void *host) "map region bar#%d ofs 0x%"PRIx64" size %"PRId64" ofs %d host %p"