Re: [Xen-devel] [PATCH] Flag events caused by foreign domains

[Olaf Hering <olaf@xxxxxxxxx>]

On Fri, Dec 02, Andres Lagar-Cavilla wrote:

> > On Thu, Dec 01, Andres Lagar-Cavilla wrote:
> >
> >> Add a new flag for mem events, as consumers might need to discriminate
> >> foreign domain-caused from guest-caused events. The vcpu field of an
> >> event is bogus from a consumer p.o.v. for foreign domain-caused events.
> >
> > How is this supposed to be used?
> We're just OR'ing an extra flag on existing events. Toolstacks can ignore
> it, or use it to handle foreign events differently, or whatever. No new
> events are generated, timings don't change etc.

Thats obvious.

> Is that your concern?

I'm wondering wether it really achieves what you want, no stall in the
ring buffer etc.

Olaf

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