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Re: [Xen-devel] How to disable pae in xen

To: LIU Wei <liuw@xxxxxxxxx>
Subject: Re: [Xen-devel] How to disable pae in xen
From: Pasi Kärkkäinen <pasik@xxxxxx>
Date: Mon, 9 Nov 2009 12:25:44 +0200
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On Mon, Nov 09, 2009 at 05:44:11PM +0800, LIU Wei wrote:
> Hi, xen experts
> In early time xen, there is an option in Config.mk to toggle PAE mode.
> But in xen-3.3.0, it's gone. The only thing I find is a cr4 operation in
> xen/arch/x86/setup.c
> mmu_cr4_features = X86_CR4_PSE | X86_CR4_PGE | X86_CR4_PAE
> If I want to disable PAE in xen-3.3.0, should I delete the last feature? And, 
> I
> wonder if there are any other variables I need to touch.
> Any reply is welcomed.

Yeah, Xen 3.3+ switched to _only_ supporting 32bit PAE.
non-PAE 32bit is not supported anymore.

-- Pasi

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