[vbox-dev] "Bug" on Virtualbox 1.5 with Via C7 CPU: Can't run XP guest

[Knut St. Osmundsen]

David Losada Gacio wrote:
> It was discovered in february this year as Heike C. Zimmerer wrote (see:
> http://www.mail-archive.com/vbox-users@virtualbox.org/msg00423.html ),
> but it's still a problem. When I install Win XP SP2 as guest on
> Kubuntu 7.10 host with a C7 Esther processor it refuses to install.
> 
> With my previous C3 Samuel without cmov Virtualbox 1.4 WinXP run
> perfectly, but now with C7 (it's like a i686) I can't run it...
> 

My hunch is that we're doing something wrong wrt to the 
CPUID/eax=0xc000000x and/or CPUID/eax=0x8000000x on those CPUs. I'll try 
google up some specs and see if I can't figure it out... Let me know if 
you're capable of building the trunk and willing to do some testing.

Kind Regards,
  knut