Symbol: __HYPERVISOR_event_channel_op
usr/src/uts/common/xen/os/hypercall.c
275
return (__hypercall2(__HYPERVISOR_event_channel_op, (long)cmd,
usr/src/uts/i86xpv/io/privcmd_hcall.c
1205
case __HYPERVISOR_event_channel_op: