Re: [PATCH] Enhance perf to collect KVM guest os statistics from host side

Avi Kivity
2010-03-17T10:06:48Z

On 03/17/2010 11:51 AM, Sheng Yang wrote:
>
>> I think you need DM_NMI for that to work correctly.
>>
>> An alternative is to call the NMI handler directly.
>>
> apic_send_IPI_self() already took care of APIC_DM_NMI.
>

So it does (though not for x2apic?). I don't see why it doesn't work.

> And NMI handler would block the following NMI?
>
>

It wouldn't - won't work without extensive changes.

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