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Re: [Xen-devel] [PATCH 2/5] x86: split out cpuid objects and helpers



On Fri, May 25, 2018 at 11:41:04AM +0200, Roger Pau Monné wrote:
> On Thu, May 24, 2018 at 05:05:19PM +0100, Wei Liu wrote:
> > They are moved to a new header which is going to be consumed by both
> > the hypervisor and toolstack.
> > 
> > Create a new directory for this kind of headers in anticipation of
>                                                                   ^that?
> > more will come.
> > 
> > No functional change.
> > 
> > Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx>
> > ---
> > Cc: Jan Beulich <jbeulich@xxxxxxxx>
> > Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> > 
> > Any suggestion on the directory name?
> > ---
> >  xen/include/asm-x86/arch-shared/cpuid.h | 213 
> > ++++++++++++++++++++++++++++++++
> >  xen/include/asm-x86/cpuid.h             | 210 
> > +------------------------------
> 
> I would have placed those inside of:
> 
> xen/include/public/arch-x86/cpuid.h
> 
> Protected with a #if defined(__XEN__) || defined(__XEN_TOOLS__)?
> 

I envision this is going to grow into libcpuid or something, just like
libelf.

Also this isn't some sort of interface between HV and toolstack -- the
interface works on serialised data. Putting the internal representation
in public header would be wrong.

Wei.

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