If I read the OS compatibility guide (attached) correctly, then yes this is fully supported - see page 99 of the attached PDF. It refers to "VMware vSCSI", which I assume is PVSCSI.
This is another reference doc, but since it hasn't been updated since Oct 9, 2012 it doesn't have the details for Window Server 2012;
Cheers,
Jon
Message was edited by: jrmunday