[Xen-tools] hi, all. I have a question about xentrace?

["宋懿gmail" <sjtusongyi@xxxxxxxxx>]

as we all known, xentrace is a lightweight event logging facility present in Xen. XenTrace
can log events at arbitrary control points in the hypervisor.

my question is that which API or interface does Xen provide to xentrace?

what is the principle of xentrace? how does the event logged into trace buffer?

 

I had read xentrace.c file; but found no result.

 

thanks in advance!!

--
Best Regrads,
songyi

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