Re: [Xen-devel] [PATCH v11 for-xen-4.5 19/20] x86/VPMU: NMI-based VPMU support

[Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>]

On 09/23/2014 02:52 PM, Konrad Rzeszutek Wilk wrote:
> On Mon, Sep 22, 2014 at 07:58:00PM -0400, Boris Ostrovsky wrote:
> > Add support for using NMIs as PMU interrupts.
> Could you explain what the benefits are vs using the regular vector?
>
> Any why one would wnat to use this?

To profile hypervisor code that is executed with interrupts disabled.


-boris

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