These are useful when trying to debug the initial vhost-user
negotiation, especially when it hard to get logging from the low level
library on the other side.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
---
v2
- fixed arguments
---
hw/virtio/vhost-user.c | 4 ++++
hw/virtio/trace-events | 2 ++
2 files changed, 6 insertions(+)
diff --git a/hw/virtio/vhost-user.c b/hw/virtio/vhost-user.c
index 6abbc9da32..b27b8c56e2 100644
--- a/hw/virtio/vhost-user.c
+++ b/hw/virtio/vhost-user.c
@@ -489,6 +489,8 @@ static int vhost_user_write(struct vhost_dev *dev,
VhostUserMsg *msg,
return ret < 0 ? -saved_errno : -EIO;
}
+ trace_vhost_user_write(msg->hdr.request, msg->hdr.flags);
+
return 0;
}
@@ -542,6 +544,8 @@ static int vhost_user_set_log_base(struct vhost_dev *dev, uint64_t base,
}
}
+ trace_vhost_user_read(msg.hdr.request, msg.hdr.flags);
+
return 0;
}
diff --git a/hw/virtio/trace-events b/hw/virtio/trace-events
index 46851a7cd1..fd213e2a27 100644
--- a/hw/virtio/trace-events
+++ b/hw/virtio/trace-events
@@ -21,6 +21,8 @@ vhost_user_set_mem_table_withfd(int index, const char *name,
uint64_t memory_siz
vhost_user_postcopy_waker(const char *rb, uint64_t rb_offset) "%s + 0x%"PRIx64
vhost_user_postcopy_waker_found(uint64_t client_addr) "0x%"PRIx64
vhost_user_postcopy_waker_nomatch(const char *rb, uint64_t rb_offset) "%s +
0x%"PRIx64
+vhost_user_read(uint32_t req, uint32_t flags) "req:%d flags:0x%"PRIx32""
+vhost_user_write(uint32_t req, uint32_t flags) "req:%d flags:0x%"PRIx32""