Re: [Xen-devel] [PATCH v2 06/13] x86/PMU: Add public xenpmu.h

[Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>]

On 09/23/2013 09:04 AM, Dietmar Hahn wrote:
> Am Freitag 20 September 2013, 05:42:05 schrieb Boris Ostrovsky:
> > +
> > +/* Intel PMU registers and structures */
> > +#define XENPMU_CORE2_MAX_ARCH_PMCS     16
> > +#define XENPMU_CORE2_MAX_FIXED_PMCS    4
> > +struct core2_vpmu_context {
> > +    uint64_t global_ctrl;
> > +    uint64_t global_ovf_ctrl;
> > +    uint64_t global_status;
> > +    uint64_t global_ovf_status;
> > +    uint64_t fixed_ctrl;
> > +    uint64_t ds_area;
> > +    uint64_t pebs_enable;
> > +    uint64_t debugctl;
> What is debugctl for? I couldn't find it in the other patches.
Right. I added it because I am pretty sure it will be needed to make BTS 
and PEBS work
for PV. And because this structure is part of the interface I thought I 
should put it in now.
-boris


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