Re: [kvm-devel] 2.6.23.1-rt4 and kvm 48

[Avi Kivity]

Jan Kiszka wrote:
> Avi Kivity wrote:
>   
> > Jan Kiszka wrote:
> >     
> > > Interesting result - you've read about the wbinvd issues? Is there no
> > > wbinvd in the bios shipped with older kvm? Which VM extension did you
> > > test, both Intel and AMD? I would bet that your X issues are due to the
> > > same effect. X startup/shutdown involves a lot of wbinvd calls on my
> > > test boxes.
> > >
> > >   
> > >       
> > kvm.git now traps invd and wbinvd on amd, so there shouldn't be any 
> > issues there. 
> >     
>
> So kvm can then simply ignore the instructions, or what does it do about
> them? I recall some replies in the related thread that some more work
> may be required.
>
>   

It currently ignores the instructions.  When device passthrough is 
implemented more work will be needed.


--
Any sufficiently difficult bug is indistinguishable from a feature.

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