linux-kernel - Re: [PATCH] i386: XEN config option should not depend on X86_TSC/X86

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Date:	Thu, 13 Dec 2007 23:08:26 -0800
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Jan Beulich <jbeulich@...ell.com>
CC:	tglx@...utronix.de, mingo@...hat.com, hpa@...or.com,
	linux-kernel@...r.kernel.org,
	Jeremy Fitzhardinge <jeremy@...source.com>
Subject: Re: [PATCH] i386: XEN config option should not depend on	X86_TSC/X86_CMPXCHG

Jan Beulich wrote:
> The way X86_TSC works and the fact that Xen itself won't work on
> systems without TSC (really any systems pre-dating i686) makes it
> unnecessary for XEN to depend on it.
>
> Similarly, X86_CMPXCHG isn't needed here either as Xen for the above
> reason guarantees its availability.
>
> This allows the option to be available when selecting M386, M486, or
> M586.
>
> Signed-off-by: Jan Beulich <jbeulich@...ell.com>
> Cc: Jeremy Fitzhardinge <jeremy@...source.com>
>   

Oh, I thought this had already happened.  Guess not.

Anyway:

Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>

    J
>  arch/x86/xen/Kconfig |    2 +-
>  1 files changed, 1 insertion(+), 1 deletion(-)
>
> --- linux-2.6.24-rc5/arch/x86/xen/Kconfig	2007-12-12 11:28:18.000000000 +0100
> +++ 2.6.24-rc5-i386-xen-no-tsc/arch/x86/xen/Kconfig	2007-12-07 14:53:28.000000000 +0100
> @@ -5,7 +5,7 @@
>  config XEN
>  	bool "Xen guest support"
>  	select PARAVIRT
> -	depends on X86_CMPXCHG && X86_TSC && !NEED_MULTIPLE_NODES && !(X86_VISWS || X86_VOYAGER)
> +	depends on !NEED_MULTIPLE_NODES && !(X86_VISWS || X86_VOYAGER)
>  	help
>  	  This is the Linux Xen port.  Enabling this will allow the
>  	  kernel to boot in a paravirtualized environment under the
>
>
>
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