Developers: Using DTrace With the Hypervisor
Due to the isolation of the hypervisor from dom0, there is currently no
way to apply DTrace directly to the hypervisor. There is an xpv
DTrace provider that allows you to trace the interaction between dom0 and the
hypervisor.
To list the available DTrace probes, use the following command line:
# dtrace -l -i 'xpv:::'
To enable all probes, use the following command line
# dtrace -n 'xpv::: {}'