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[PATCH-for-5.2 v3 4/7] util/vfio-helpers: Trace where BARs are mapped
From: |
Philippe Mathieu-Daudé |
Subject: |
[PATCH-for-5.2 v3 4/7] util/vfio-helpers: Trace where BARs are mapped |
Date: |
Tue, 3 Nov 2020 03:07:30 +0100 |
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>
---
util/vfio-helpers.c | 2 ++
util/trace-events | 1 +
2 files changed, 3 insertions(+)
diff --git a/util/vfio-helpers.c b/util/vfio-helpers.c
index cd6287c3a98..278c54902e7 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;
diff --git a/util/trace-events b/util/trace-events
index 0753e4a0ed1..52d43cda3f3 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"
--
2.26.2
- [PATCH-for-5.2 v3 0/7] util/vfio-helpers: Generic code strengthening, Philippe Mathieu-Daudé, 2020/11/02
- [PATCH-for-5.2 v3 1/7] util/vfio-helpers: Improve reporting unsupported IOMMU type, Philippe Mathieu-Daudé, 2020/11/02
- [PATCH-for-5.2 v3 2/7] util/vfio-helpers: Trace PCI I/O config accesses, Philippe Mathieu-Daudé, 2020/11/02
- [PATCH-for-5.2 v3 3/7] util/vfio-helpers: Trace PCI BAR region info, Philippe Mathieu-Daudé, 2020/11/02
- [PATCH-for-5.2 v3 4/7] util/vfio-helpers: Trace where BARs are mapped,
Philippe Mathieu-Daudé <=
- [PATCH-for-5.2 v3 5/7] util/vfio-helpers: Improve DMA trace events, Philippe Mathieu-Daudé, 2020/11/02
- [PATCH-for-5.2 v3 6/7] util/vfio-helpers: Convert vfio_dump_mapping to trace events, Philippe Mathieu-Daudé, 2020/11/02
- [PATCH-for-5.2 v3 7/7] util/vfio-helpers: Assert offset is aligned to page size, Philippe Mathieu-Daudé, 2020/11/02
- Re: [PATCH-for-5.2 v3 0/7] util/vfio-helpers: Generic code strengthening, Stefan Hajnoczi, 2020/11/03
- Re: [PATCH-for-5.2 v3 0/7] util/vfio-helpers: Generic code strengthening, Auger Eric, 2020/11/03