linux-kernel - Re: [PATCH 4/7] acpi: use indirect call to register gsi in different modes

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Date:	Wed, 6 Oct 2010 20:48:07 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	"H. Peter Anvin" <hpa@...or.com>
cc:	Stefano Stabellini <stefano.stabellini@...citrix.com>,
	x86@...nel.org, linux-kernel@...r.kernel.org,
	xen-devel@...ts.xensource.com, "jeremy@...p.org" <jeremy@...p.org>,
	"konrad.wilk@...cle.com" <konrad.wilk@...cle.com>
Subject: Re: [PATCH 4/7] acpi: use indirect call to register gsi in different
 modes



On Wed, 6 Oct 2010, H. Peter Anvin wrote:

> On 10/06/2010 10:00 AM, Stefano Stabellini wrote:
> > Peter,
> > I sent this patch a while back as part of the "PV on HVM: receive
> > interrupts as xen events" series (that it is based upon Konrad's
> > pcifront series, he sent another version to the list yesterday).
> > 
> > Do you think that this is a reasonble approach?
> > 
> > If you want to give a look at the whole series you can find it here:
> > 
> > http://lkml.org/lkml/2010/8/30/170
> > 
> > everything else is Xen specific stuff.
> > 
> > Thanks in advance,
> > 
> 
> On the surface it seems reasonable.
> 
> Thomas Gleixner has been working on greatly revamping a bunch of the x86
> interrupt code, and this might interact with his stuff, so it would be
> good if he could comment on it.
> 
> [tglx: what they're apparently working on is to redirect APIC interrupts
> to Xen event channels so they don't have to interact with the simulated
> memory-mapped APIC.  It's "paravirtualization light".]

I'm not touching acpi code. So that should be ok.

Thanks,

	tglx
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