linux-kernel - Re: [PATCH] x86: vSMP selection in config

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Message-ID: <20080226200512.GA32685@uranus.ravnborg.org>
Date:	Tue, 26 Feb 2008 21:05:12 +0100
From:	Sam Ravnborg <sam@...nborg.org>
To:	Yinghai Lu <Yinghai.Lu@....COM>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	kiran@...lemp.com, shai@...lemp.com,
	Glauber Costa <gcosta@...hat.com>
Subject: Re: [PATCH] x86: vSMP selection in config

On Sun, Feb 24, 2008 at 10:43:49PM -0800, Yinghai Lu wrote:
> 
> find out vSMP setting is going away in config after make oldconfig
> 
> vSMP need to PARAVIRT and PCI.
> so move PARAVIRT out of if PARAVIRT_GUEST, and make vSMP select PCI instead of
> depends on PCI
> 
> after patch vSMP could stick there.

I'm certain that we have hit a Kconfig bug / limitation here and
the patch below is just a workaround for that issue.

I tracked it down to a minimal case and hope Roman can provide
either an explanation or a fix.

IMO VSMP can wait until this is resolved properly and we should not
apply this patch.

	Sam
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