* Avi Kivity <avi@xxxxxxxxxx> wrote:
> On 04/17/2010 10:13 PM, Ingo Molnar wrote:
> >* Avi Kivity<avi@xxxxxxxxxx> wrote:
> >
> >>On 04/16/2010 10:34 AM, Zhang, Yanmin wrote:
> >>>Below is the kernel patch to enable perf to collect guest os statistics.
> >>>
> >>>Joerg,
> >>>
> >>>Would you like to add support on svm? I don't know the exact point to trigger
> >>>NMI to host with svm.
> >>>
> >>>See below code with vmx:
> >>>
> >>>+ kvm_before_handle_nmi(&vmx->vcpu);
> >>> asm("int $2");
> >>>+ kvm_after_handle_nmi(&vmx->vcpu);
> >>>
> >>>Signed-off-by: Zhang Yanmin<yanmin_zhang@xxxxxxxxxxxxxxx>
> >>Can you please split it further?
> >>
> >>Patch 1 introduces perf_register_guest_info_callbacks() and related. Ingo
> >>can merge this into a branch in tip.git. Patch 2 is just the kvm bits, I'll
> >>apply that after merging the branch with patch 1. Patch 3 adds the
> >>tools/perf changes.
> >>
> >>This way perf development can continue on tip.git, and kvm development can
> >>continue on kvm.git, without the code bases diverging and requiring a merge
> >>later.
> >I'd like to pull the KVM bits from you into perf - so that there's a testable
> >form of the changes. We can do that via a branch that has 1-2 changes, plus
> >minimal conflicts down the line, right?
>
> We can try doing this (currently we don't, but this is simple enough that we
> could).
Thanks.
> [...] I'd still like 1-2 in two patches.
Sure.
Ingo
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