Description of problem: HVM guest can bolloon memory as PV ones. The GUI is still showing Start up memory and Maximum memory fields for HVM guests. That can be confusing if the user doesn't know HVM guests can't increase their memory on demand. Version-Release number of selected component (if applicable): virt-manager-0.5.3-6.el5 How reproducible: 100% Steps to Reproduce: 1. Start virtual manager 2. Create new HVM guest 3. Proceed to memory and CPU settings. There are 2 fields for memory. Actual results: 2 entry fields for memory Expected results: single memory field Additional info:
If the HVM guest has paravirtualized drivers installed, then it has exactly same ballooning capabilities as PV guests. virt-manager has no knowledge of whether the PV drivers are installed in HVM guests, hence we have to leave the UI enabled for all HVM guests.