Message-ID: <497E5F76.10301@goop.org>
Date: Mon, 26 Jan 2009 17:12:22 -0800
From: Jeremy Fitzhardinge <jeremy@goop.org>
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To: Brian Gerst <brgerst@gmail.com>, Tejun Heo <htejun@gmail.com>
CC: Ingo Molnar <mingo@elte.hu>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: unified percpu stuff
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I'm really pleased to see the unified percpu stuff in the kernel, but 
unfortunately its breaking Xen at the moment. 

It looks like this is just a matter of initializing %gs properly in 
xen_start_kernel.  Is there any problem with me doing a load_gs_base(0) 
somewhere early in xen_start_kernel (arch/x86/xen/enlighten.c)?  Is the 
initial percpu are and offset for cpu0 all set up?  Do I need to make it 
#ifdef CONFIG_SMP?

Do I need to do anything for 32-bit? (I haven't tested that yet.)

Thanks,
    J


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