Sets the specified virtual machine I/O priority.
PRL_RESULT PrlVmCfg_SetIoPriority( PRL_HANDLE hVmCfg, PRL_UINT32 nVmIoPriority );
PrlApiVm.h
PRL_RESULT. Possible values:
PRL_ERR_INVALID_ARG - invalid handle or null pointer was passed.
PRL_ERR_SUCCESS - function completed successfully.
Priority range is [PRL_IOPRIO_MIN - PRL_IOPRIO_MAX]. The greater priority is, the more time for I/O activity Vm has. By default each Vm has priority of IO_PRIO_DEFAULT.