DosPerfSysCall Parameter - ulParm1

ulParm1 (ULONG) - in/out

Command specific parameter 1

Parameter usage depends on the command specified:

CMD_KI_RDCNT

Pointer to an array of CPUUTIL structures, with one entry for each processor. On a 4-way SMP machine, the array definition would be:

  CPUUTIL CPUUtil[4];   /* For processor IDs 0, 1, 2, and 3 */

since processor numbers and arrays are both 0-based. ulParm1 would be set to the address of CPUUtil[0].

ulParm2 and ulParm3 are not used and should be set to zero.

CMD_SOFTTRACE_LOG
Major code for the trace entry in the range of 0 to 255. Major codes 184 (0x00b8) and 185 (0x00b9) have been reserved for customer use. Major code 1 is reserved for exclusive use by IBM.

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