Re: [V6][PATCH 4/6] x86, nmi: add in logic to handle multiple eventsand unknown NMIs

From: Avi Kivity
Date: Sun Oct 02 2011 - 10:05:33 EST

On 10/02/2011 03:48 PM, Andi Kleen wrote:
> Second, I wanted to use NMIs as a way of waking up a vcpu sleeping with
> interrupts disabled (in the context of Jeremy's paravirt spinlock
> patches). Looks like we'll have to use paravirtualization for that.

Just use a mode of perf that doesn't use NMIs.
Interrupt off profiling is rarely needed if at all on modern kernels.

I tend to agree. But that's not my call.

(note 'perf kvm' will need adjustment if we make that change - likely need to capture the interrupt during vmexit and dispatch it manually; not sure if it's workable for svm at all)

error compiling committee.c: too many arguments to function

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