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[PATCH-for-5.2 v3 3/7] util/vfio-helpers: Trace PCI BAR region info
From: |
Philippe Mathieu-Daudé |
Subject: |
[PATCH-for-5.2 v3 3/7] util/vfio-helpers: Trace PCI BAR region info |
Date: |
Tue, 3 Nov 2020 03:07:29 +0100 |
For debug purpose, trace BAR regions info.
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 | 8 ++++++++
util/trace-events | 1 +
2 files changed, 9 insertions(+)
diff --git a/util/vfio-helpers.c b/util/vfio-helpers.c
index 1d4efafcaa4..cd6287c3a98 100644
--- a/util/vfio-helpers.c
+++ b/util/vfio-helpers.c
@@ -136,6 +136,7 @@ static inline void assert_bar_index_valid(QEMUVFIOState *s,
int index)
static int qemu_vfio_pci_init_bar(QEMUVFIOState *s, int index, Error **errp)
{
+ g_autofree char *barname = NULL;
assert_bar_index_valid(s, index);
s->bar_region_info[index] = (struct vfio_region_info) {
.index = VFIO_PCI_BAR0_REGION_INDEX + index,
@@ -145,6 +146,10 @@ static int qemu_vfio_pci_init_bar(QEMUVFIOState *s, int
index, Error **errp)
error_setg_errno(errp, errno, "Failed to get BAR region info");
return -errno;
}
+ barname = g_strdup_printf("bar[%d]", index);
+ trace_qemu_vfio_region_info(barname, s->bar_region_info[index].offset,
+ s->bar_region_info[index].size,
+ s->bar_region_info[index].cap_offset);
return 0;
}
@@ -416,6 +421,9 @@ static int qemu_vfio_init_pci(QEMUVFIOState *s, const char
*device,
ret = -errno;
goto fail;
}
+ trace_qemu_vfio_region_info("config", s->config_region_info.offset,
+ s->config_region_info.size,
+ s->config_region_info.cap_offset);
for (i = 0; i < ARRAY_SIZE(s->bar_region_info); i++) {
ret = qemu_vfio_pci_init_bar(s, i, errp);
diff --git a/util/trace-events b/util/trace-events
index 8d3615e717b..0753e4a0ed1 100644
--- a/util/trace-events
+++ b/util/trace-events
@@ -87,3 +87,4 @@ qemu_vfio_dma_map(void *s, void *host, size_t size, bool
temporary, uint64_t *io
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
--
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 <=
- [PATCH-for-5.2 v3 4/7] util/vfio-helpers: Trace where BARs are mapped, Philippe Mathieu-Daudé, 2020/11/02
- [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