Hi Steffen,

As Avi pointed out, VT requires that SS.RPL == CS.RPL.  We're seeing 
gfxboot fail under KVM because ss = 0x5761 while cs = 0x4004 during the 
transition from real mode to protected mode.  The attached patch passes 
the value of ss through ebx since KVM has to sanitize the value of ss to 
make VT happy.

I've tested this with a remastered Ubuntu Gutsy install CD.  I couldn't 
find the right gfxboot theme for the openSuSE install CD I have so I 
wasn't able to test it.

I suspect that Xen should have a very similar problem as I can't think 
of a possible way to work around this.

Regards,

Anthony Liguori