linux-kernel - Re: [patch 3/3] x86: kvm guest side support for KVM_HC_RT

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Date:   Fri, 22 Sep 2017 15:01:41 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Marcelo Tosatti <mtosatti@...hat.com>
Cc:     Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>, mingo@...hat.com,
        kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [patch 3/3] x86: kvm guest side support for KVM_HC_RT_PRIO
 hypercall\

On Fri, Sep 22, 2017 at 09:40:05AM -0300, Marcelo Tosatti wrote:

> Are you arguing its invalid for the following application to execute on 
> housekeeping vcpu of a realtime system:
> 
> void main(void)
> {
> 
>     submit_IO();
>     do {
>        computation();
>     } while (!interrupted());
> }
> 
> Really?

No. Nobody cares about random crap tasks.