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Re: [Xen-devel] dom0 boot failure with 256G

from [Keir Fraser] [Permanent Link][Original]
To: Jan Beulich <jbeulich@xxxxxxxxxx>, Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Subject: Re: [Xen-devel] dom0 boot failure with 256G
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Thu, 05 Jun 2008 14:17:06 +0100
Cc: "Kurt C. Hackel" <kurt.hackel@xxxxxxxxxx>, Ian Pratt <Ian.Pratt@xxxxxxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, mukesh.rathor@xxxxxxxxxx
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On 5/6/08 14:15, "Jan Beulich" <jbeulich@xxxxxxxxxx> wrote:

>> A paravirtualised kernel needs to have its PAGE_MASK widened. This is a bug
>> we've bumped into once or twice.
> 
> Even a native kernel ought to honor the physical address width the
> processor supports rather than arbitrarily masking off bits just because
> original PAE only supported 36 bits.

Yes, both Intel and AMD have wider PAE addressing these days.

 -- Keir



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