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Re: [Xen-devel] copy_to_user in another domain?

from [Keir Fraser] [Permanent Link][Original]
To: "Bryan D. Payne" <bryan@xxxxxxxxxxxx>
Subject: Re: [Xen-devel] copy_to_user in another domain?
From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Date: Thu, 20 Apr 2006 15:10:42 +0100
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On 20 Apr 2006, at 14:59, Bryan D. Payne wrote:


What address do you have in B? Virtual, machine, pseudo-physical?


I have both a virtual and a machine address.
You can pass the latter (as an MFN) to map_domain_page(). That'll get you a temporary mapping in Xen, relinquished with unmap_domain_page(). 

 -- Keir


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