From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andrew Cooper <andrew.cooper3@citrix.com>
Subject: Re: Enable virtual memory for Mini-os on ARM
Date: Mon, 23 Dec 2013 12:07:38 +0000
Message-ID: <52B8278A.3060804@citrix.com>
References: <CAOTdubuJcxdiR-B6X5sgdAfaDEMa7VFKG3Kc8oMhbfEE_zUU+Q@mail.gmail.com>
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To: Samuel Thibault <samuel.thibault@ens-lyon.org>, "karim.allah.ahmed@gmail.com" <karim.allah.ahmed@gmail.com>, xen-devel@lists.xen.org
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On 23/12/2013 10:38, Samuel Thibault wrote:
> karim.allah.ahmed@gmail.com, le Mon 23 Dec 2013 10:23:01 +0000, a =E9crit=
 :
>> Why do I need to create pagetables and fill them for mini-os ?
> I don't know the virtual memory of ARM, but on x86 we definitely need a
> pagetable because very often we need to map/unmap things, like granted
> mfns, i/o areas, foreign pages, etc.
>
> Samuel

More importantly, an x86 PV guest *cannot* run in non-paging mode.

This, I believe, is different to ARM, where an ARM guest is rather more
like x86 HVM guests, which have a full processor to play with.

~Andrew

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