Re: [Xen-devel] [PATCH v11 for-xen-4.5 11/20] x86/VPMU: Interface for setting PMU mode and flags

[Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>]

On 09/23/2014 04:47 PM, Daniel De Graaf wrote:
> On 09/23/2014 03:24 PM, Boris Ostrovsky wrote:
> > I haven't looked at XSM in a few months but I remember when I tried 
> > to use XSM for this I found that we ran out of bits for a new 
> > hypercall in the permission vector. (I actually mention this in the 
> > cover letter, but it's way way down)
> > The two commits that you refer to are using existing hypercalls.
> >
> > -boris
> The solution to running out of bits is to create another class in 
> order to
> hold the new permissions, as has already been done for 
> domain/domain2.  The
> CQM patches (v15 03/11) already define a class xen2, so you may want 
> to base
> on top of it so that patches don't conflict (or whatever is preferred 
> based
> on the patchesets' relative readiness).

Thanks Daniel.

Question to maintainers --- should I wait until CQM patches get in?

-boris

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