Re: [Xen-devel] [PATCH] xen pvhvm: do not remap pirqs onto evtchns if !xen_have_vector_callback

From: Konrad Rzeszutek Wilk
Date: Tue Jan 31 2012 - 20:08:10 EST


On Tue, Jan 31, 2012 at 04:40:26PM +0000, Stefano Stabellini wrote:
> On Tue, 31 Jan 2012, Konrad Rzeszutek Wilk wrote:
> > On Mon, Jan 30, 2012 at 02:31:46PM +0000, Stefano Stabellini wrote:
> > >
> > > Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
> >
> > So the xen_have_vector_callback looks to be only set by
> >
> > 1398 if (xen_feature(XENFEAT_hvm_callback_vector))
> > 1399 xen_have_vector_callback = 1;
> >
> > So could this be just done via a check for that instead?
> >
>
> Sure, but I don't think it would be better: using
> xen_have_vector_callback is more consistent and give us the flexibility
> of allowing users to manually override it in the future.

ok. applied. Hm, I was thinking to put on stable@xxxxxxxxxx - but how
far back should it go? 2.6.37?
>
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