Re: [Xen-devel] [HYBRID]: XEN_EMULATE_PREFIX in user process

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Mon, 2012-07-02 at 09:27 +0100, Jan Beulich wrote:
> >>> On 30.06.12 at 00:50, Mukesh Rathor <mukesh.rathor@xxxxxxxxxx> wrote:
> > On Fri, 29 Jun 2012 15:04:14 -0700 (PDT)
> > Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote:
> > 
> >> On Fri, 2012-06-29 at 20:07 +0100, Mukesh Rathor wrote:
> >> 
> >> I don't think reducing code should come at the expense of adding
> >> special cases for hybrid to userspace programs...
> >> 
> >> I think you'll have to handle the invalid op, it can't be that much
> >> code, can it?
> > 
> > Not a whole lot of code, but other than xen-detect, just curious,
> > what is the possibility of any user level using XEN_EMULATE_PREFIX cpuid?
> 
> Obviously any code cloned from xen-detect could, i.e. anything
> that tries to be Xen-PV-aware.

Which shouldn't be all that much code but we can't really just declare
it to be wrong...

Ian.


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