I know you need at least two graphics cards for VGA passthrough... but I'm worried the integrated graphics card will get disabled once I plug in the PCI card. could xen (xcp) override this default behavior?
I would like to use the integrated gpu (i5 3470) for dom0 and then use VGA passthrough for a PCI card (Nvidea gForce GT 430) for the HVM windows guest... using the motherboard H77M-itx
i wouldn't mind getting another pci graphics card but I was silly and went for the itx board that only has one pci slot.
from
http://superuser.com/questions/241157/how-can-i-enable-onboard-graphics-and-dedicated-card-simultaneously
they said 6 series and up chipsets support gpu and PCI at the same time. Now I noticed in my bios under advanced->North Bridge Configuration, there is an option to choose the preferred graphics card whether onboard or PCI.
I chose the onboard card as default.
When I setup the windows VM i'll see if the VGA passthrough works...
– neildaemond Oct 03 '12 at 11:34