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Re: [Xen-devel] [RFC PATCH 01/35] Add XEN config options and disable uns

To: Chris Wright <chrisw@xxxxxxxxxxxx>
Subject: Re: [Xen-devel] [RFC PATCH 01/35] Add XEN config options and disable unsupported config options.
From: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
Date: Wed, 10 May 2006 16:36:58 +0100
Cc: virtualization@xxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Ian Pratt <ian.pratt@xxxxxxxxxxxxx>, Christian Limpach <Christian.Limpach@xxxxxxxxxxxx>
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On Maw, 2006-05-09 at 00:00 -0700, Chris Wright wrote:
> plain text document atodiad (config-xen)
> The XEN config option is selected from the i386 subarch menu by
> choosing the X86_XEN "Xen-compatible" subarch.

You need this as well. At least if I read the logic right with regards
to Xen and traps it is safe to do the following (although probably not
safe to run Xen on such a physical system anyway)

Signed-off-by: Alan Cox <alan@xxxxxxxxxx>

--- arch/i386/Kconfig.cpu~      2006-05-10 15:51:44.956941304 +0100
+++ arch/i386/Kconfig.cpu       2006-05-10 15:51:44.956941304 +0100
@@ -251,7 +251,7 @@
 config X86_F00F_BUG
-       depends on M586MMX || M586TSC || M586 || M486 || M386
+       depends on ( M586MMX || M586TSC || M586 || M486 || M386 ) && !XEN
        default y
 config X86_WP_WORKS_OK

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