[Xen-users] Difference between primary and secondary VGA pass through

["Daniel E. Shub" <daniel.shub@xxxxxxxxxxxxxxxx>]

I posted this question over at 
http://unix.stackexchange.com/questions/123510/differences-between-primary-and-secondary-vga-pass-through-in-virtualization
 but didn't get an answer so I 
thought I would try here ...

From the wiki I think I understand why passing a VGA adapter through is more 
difficult than passing a standard PCI device through and to some extent why 
passing a VGA adapter through as the primary device is more difficult than 
passing it through as a secondary device. What I m confused about is what are 
the advantages of passing a VGA adapter through as the primary device as 
opposed to the secondary device?

Thanks

Dan
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