Re: [Xen-devel] [PATCH v7 14/28] xen/arm: ITS: Initialize physical ITS and export lpi support

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

On Tue, 2015-09-22 at 10:45 +0100, Julien Grall wrote:
> 
> On 22/09/2015 10:17, Vijay Kilari wrote:
> > > Why do you need a command line option to enable/disable the physical
> > > ITS?
> > 
> > I have added this to remove ITS support?.
> > Did I misunderstood it. May be I have to avoid generating its dt node
> > to disable its for dom0?
> 
> My question is why do you want to let the user disabling the ITS using 
> the command line? What's the use case?

It's always useful to be able to nobble this sort of thing, either for
debugging/development purposes or to allow users to workaround issues.

Assuming the switch is simple an reasonably self contained (and it really
should be, since it should just be checked at start of day and then arrange
to behave like no ITS is present) then I can't see why not to have it.

Ian.

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