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

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

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.

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