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

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Message-ID: <20120201010803.GD32295@andromeda.dapyr.net>
Date:	Tue, 31 Jan 2012 21:08:03 -0400
From:	Konrad Rzeszutek Wilk <konrad@...nok.org>
To:	Stefano Stabellini <stefano.stabellini@...citrix.com>
Cc:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	"xen-devel@...ts.xensource.com" <xen-devel@...ts.xensource.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [Xen-devel] [PATCH] xen pvhvm: do not remap pirqs onto evtchns if !xen_have_vector_callback

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@...citrix.com>
> > 
> > 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@...nel.org - but how
far back should it go? 2.6.37?
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@...ts.xensource.com
> http://lists.xensource.com/xen-devel
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