Re: [Xen-devel] [PATCH v2 2/5] vcpu: track hvm vcpu number on the system

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Thu, May 11, 2017 at 12:35:11PM +0100, Wei Liu wrote:
> On Thu, May 11, 2017 at 02:04:09PM +0800, Chao Gao wrote:
> > This number is used to calculate how many hvm vcpu on a pcpu on average.
> > 
> > Signed-off-by: Chao Gao <chao.gao@xxxxxxxxx>
> > ---
> >  xen/common/domain.c     | 8 ++++++++
> >  xen/include/xen/sched.h | 2 ++
> >  2 files changed, 10 insertions(+)
> > 
> > diff --git a/xen/common/domain.c b/xen/common/domain.c
> > index b22aacc..d433d9e 100644
> > --- a/xen/common/domain.c
> > +++ b/xen/common/domain.c
> > @@ -71,6 +71,9 @@ struct vcpu *idle_vcpu[NR_CPUS] __read_mostly;
> >  
> >  vcpu_info_t dummy_vcpu_info;
> >  
> > +/* how many hvm vcpu on this system? */
> > +atomic_t num_hvm_vcpus;
> > +
> 
> This is x86 specific and should go to x86/domain.c

... as with all the code that manipulates it. I'm sure you can find the
appropriate places like arch_initialise/destroy_vcpu.

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