If SysGen is loaded from the Vivado tools, the xbsindex-r4.mdl file that is used is a subset of the ISE Vivado blockset. But, when using the blockAdd feature to add blocks to a model, I see unsupported blocks from the ISE Vivado blockset. Attempting to place them returns the following error:
>> rehash toolboxcache
Error in xlHoverGuiActionHandler:Invalid Simulink object name: xbsIndex/ChipScope
Error in xlHoverGuiActionHandler:Invalid Simulink object name: xbsIndex/EDK Processor