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| author | Philippe Mathieu-Daudé <philmd@redhat.com> | 2020-11-03 03:07:28 +0100 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2020-11-03 19:06:22 +0000 |
| commit | 3d87c2d9435a4c71d588a770a8a34382c1afa9c1 (patch) | |
| tree | d128561d80d1cb41e99e79aca60415c4476b7315 /util/trace-events | |
| parent | a4bc212add9bd9d7a7baaa095f875d9212eb1fc9 (diff) | |
| download | qemu-3d87c2d9435a4c71d588a770a8a34382c1afa9c1.zip qemu-3d87c2d9435a4c71d588a770a8a34382c1afa9c1.tar.gz qemu-3d87c2d9435a4c71d588a770a8a34382c1afa9c1.tar.bz2 | |
util/vfio-helpers: Trace PCI I/O config accesses
We sometime get kernel panic with some devices on Aarch64
hosts. Alex Williamson suggests it might be broken PCIe
root complex. Add trace event to record the latest I/O
access before crashing. In case, assert our accesses are
aligned.
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: 20201103020733.2303148-3-philmd@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Diffstat (limited to 'util/trace-events')
| -rw-r--r-- | util/trace-events | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/util/trace-events b/util/trace-events index 24c3180..8d3615e 100644 --- a/util/trace-events +++ b/util/trace-events @@ -85,3 +85,5 @@ qemu_vfio_new_mapping(void *s, void *host, size_t size, int index, uint64_t iova qemu_vfio_do_mapping(void *s, void *host, size_t size, uint64_t iova) "s %p host %p size 0x%zx iova 0x%"PRIx64 qemu_vfio_dma_map(void *s, void *host, size_t size, bool temporary, uint64_t *iova) "s %p host %p size 0x%zx temporary %d iova %p" 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")" |