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Message-ID: <20071113184925.GB10344@localdomain>
Date: Tue, 13 Nov 2007 10:49:25 -0800
From: Ravikiran Thirumalai <kiran@...lemp.com>
To: Andi Kleen <ak@...e.de>
Cc: Glauber de Oliveira Costa <gcosta@...hat.com>,
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>
Subject: Re: [PATCH 24/24] make vsmp a paravirt client
On Tue, Nov 13, 2007 at 02:09:41PM +0100, Andi Kleen wrote:
>
>> 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.
Agreed. vsmp_init does not make sense unless the irq ops are patched. We
can call vsmp_init under #ifdef CONFIG_PARAVIRT.
Thanks,
Kiran
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