Re: [Qemu-devel] [PATCH] don't expose lm bit if kernel is not 64-bit capable.

[Anthony Liguori]

Glauber Costa wrote:
> > It would be better to use KVM_GET_SUPPORTED_CPUID for this (and similar).
> >  uname() can lie, and in theory kvm can support x86_64 on i386 kernels
> > (although patches to implement this would be rejected on cost/benefit and
> > aesthetic concerns).
> >     
>
> I sent a patch that implements this last week, but anthony seemed to
> be more inclined
> towards this approach.
>   

All I said was that if we used KVM_GET_SUPPORTED_CPUID, we had to do 
something about save/restore since it can mask arbitrary things.

Regards,

Anthony Liguori