linux-kernel - Re: [PATCH 24/24] make vsmp a paravirt client

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Date:	Tue, 13 Nov 2007 14:09:41 +0100
From:	Andi Kleen <ak@...e.de>
To:	Glauber de Oliveira Costa <gcosta@...hat.com>
Cc:	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	glommer@...il.com, tglx@...utronix.de, mingo@...e.hu,
	rusty@...tcorp.com.au, chrisw@...s-sol.org, avi@...ranet.com,
	anthony@...emonkey.ws, virtualization@...ts.linux-foundation.org,
	lguest@...abs.org, kvm-devel@...ts.sourceforge.net,
	zach@...are.com, jun.nakajima@...el.com,
	Steven Rostedt <rostedt@...dmis.org>, kiran@...lemp.com
Subject: Re: [PATCH 24/24] make vsmp a paravirt client


> If vsmp is selected, PARAVIRT will be too, and the interrupt code will
> be patched.
> the vsmp option triggers a select statement.
> 
> the ifdef only exists because, as I said, the code itself will be always
> compiled in, to avoid an ifdef in setup_64.c. So it's just a taking it
> from here, putting it there issue.

Peeking around needlessly in pci config space at each boot just to avoid an 
ifdef is not an good idea.

-Andi


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