I know of the following parameters for ACPI.PSD:
/B:device:busnumber (already deprecated ?!)
/ALS (only in APIC mode ?!)
/CD (only in APIC mode ?!)
/TMR (only in APIC mode ?!)
/DV:0x?? (only in APIC mode ?!)
/Onumber (Debugging only)
Which ones are still operational ? Does ACPI.PSD complain if it is passed an invalid/unknown parameter ?