From: Jeremy Fitzhardinge <jeremy@goop.org>
To: Jan Beulich <jbeulich@novell.com>
Cc: tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
linux-kernel@vger.kernel.org,
Jeremy Fitzhardinge <jeremy@xensource.com>
Subject: Re: [PATCH] i386: XEN config option should not depend on X86_TSC/X86_CMPXCHG
Date: Thu, 13 Dec 2007 23:08:26 -0800 [thread overview]
Message-ID: <47622BEA.9030808@goop.org> (raw)
In-Reply-To: <476102D1.76E4.0078.0@novell.com>
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@novell.com>
> Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
>
Oh, I thought this had already happened. Guess not.
Anyway:
Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.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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prev parent reply other threads:[~2007-12-14 7:08 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-13 9:00 [PATCH] i386: XEN config option should not depend on X86_TSC/X86_CMPXCHG Jan Beulich
2007-12-14 7:08 ` Jeremy Fitzhardinge [this message]
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