I've tried looking into government websites as well as several other sources. But have not been able to find a definite clear answer. As a matter of fact, I've been getting conflicting information. So I'll try asking here.

My aunt (who is ethnically Chinese and was born in HK) plans on traveling to Mainland China. She has a HK permanent Identity Card and a Canadian Passport. She does not have a HKSAR passport however. Is she eligible for the Home Return Permit or does she have to apply for a China Visa with a Canadian Passport?