linux-kernel - Re: [PATCH 3/3] Xen pad logic and notification

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Message-ID: <20120219182428.GB11882@phenom.dumpdata.com>
Date:	Sun, 19 Feb 2012 13:24:28 -0500
From:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
To:	"Liu, Jinsong" <jinsong.liu@...el.com>
Cc:	"xen-devel@...ts.xensource.com" <xen-devel@...ts.xensource.com>,
	Kernel development list <linux-kernel@...r.kernel.org>,
	"Li, Shaohua" <shaohua.li@...el.com>,
	Jan Beulich <JBeulich@...e.com>,
	"keir.xen@...il.com" <keir.xen@...il.com>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
	"lenb@...nel.org" <lenb@...nel.org>
Subject: Re: [PATCH 3/3] Xen pad logic and notification

> >> +#ifdef CONFIG_ACPI_PROCESSOR_AGGREGATOR
> > 
> > How does that work when the the driver is booted under baremetal?
> > Won't it kick out the native ACPI_PROCESSOR_AGGREGATOR_CLASS
> > (acpi_pad.c) ? 
> > 
> > What about if the other ACPI_PROCESSOR_AGGREGATOR_CLASS gets called
> > first? Won't this fail?
> > 
> > Or is the acpi_bus_register_driver smart enough to process more than
> > one ACPI bus device?
> 
> When driver booted under baremetal, xen_acpi_pad.c would be disabled and native acpi_pad.c logic would work.

Ah right. It is b/c it uses the pvops indirection mechanism.
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