On 05/25/2010 01:24 PM, Stefan Hajnoczi wrote:
This patch adds trace events for virtqueue operations including
adding/removing buffers, notifying the guest, and receiving a notify
from the guest.
diff --git a/trace-events b/trace-events
index 48415f8..a533414 100644
--- a/trace-events
+++ b/trace-events
@@ -35,6 +35,14 @@ qemu_memalign(size_t alignment, size_t size, void *ptr)
"alignment %zu size %zu
qemu_valloc(size_t size, void *ptr) "size %zu ptr %p"
qemu_vfree(void *ptr) "ptr %p"
+# hw/virtio.c
+virtqueue_fill(void *vq, const void *elem, unsigned int len, unsigned int idx) "vq
%p elem %p len %u idx %u"
+virtqueue_flush(void *vq, unsigned int count) "vq %p count %u"
+virtqueue_pop(void *vq, void *elem, unsigned int in_num, unsigned int out_num) "vq
%p elem %p in_num %u out_num %u"
+virtio_queue_notify(void *vdev, int n, void *vq) "vdev %p n %d vq %p"
+virtio_irq(void *vq) "vq %p"
+virtio_notify(void *vdev, void *vq) "vdev %p vq %p"
+
Those %ps are more or less useless. We need better ways of identifying
them.
Linux uses %pTYPE to pretty print arbitrary types. We could do
something similar (not the same since we don't want our own printf
implementation).
--
error compiling committee.c: too many arguments to function
