Re: [Xen-devel] xen,bproc and grub

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

Ah yes, if VMs use PSE then we were plannign to abuse PAT to provide
some protection for us. However, VMs can *not* currently use PSE at
the moment and, even if they could, we have since discovered that our
abuse of PAT would not work anyway. :-)

 -- Keir

> 
> I was told there were security issues with allowing PSE in VMs outright.
> 
>                               -Kip
> 
> >
> > The two features are completely unrelated.
> >
> >  -- Keir
> >
> > > My understanding was that PAT would likely be used to allow VMs to use
> > > PSE, is that not correct?
> > >
> > >           -Kip
> > >
> > > > > We don't use SYSCALL/SYSENTER, PAT or VME.
> > > >
> > > > ah, good.
> > > >
> > > >
> > > >
> > > >
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