Re: [Xen-devel] [PATCH v1 00/13] x86/PMU: Xen PMU PV support

[Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>]

On 09/10/2013 11:34 AM, Jan Beulich wrote:
> > > > On 10.09.13 at 17:20, Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx> wrote:
> > This version has following limitations:
> > * For accurate profiling of dom0/Xen dom0 VCPUs should be pinned.
> > * Hypervisor code is only profiled on processors that have running dom0 VCPUs
> > on them.
> With that I assume this is an RFC rather than full-fledged submission?
I was thinking that this would be something like stage 1 implementation (and
probably should have mentioned this in the cover letter).

For this stage I wanted to confine all changes on Linux side to xen 
subtrees.
Properly addressing the above limitation would likely require changes in 
non-xen
sources (change in perf file format, remote MSR access etc.).

-boris


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