It seems that CITRIX provides some more updated information here.
Up to now the XenServer 7.0 HCL (Hardware Compatibility List) related to (Rack/Tower/Blade) HP ProLiant Servers shows:
- HP ProLiant DL380 G9
- HP ProLiant DL360 G9
- HP ProLiant DL360p G8
- HP ProLiant BL460c G9
- HP ProLiant BL660c G9
- HP ProLiant BL460c G8
- HP ProLiant BL490c G7