On 24/01/2009 09:15, "Keir Fraser" <keir.fraser@xxxxxxxxxxxxx> wrote:
>> I talked to Joe Cihula about this. He is suggesting map only the RAM memory
>> in E820 table. This is more secure than map everything below max_page. We
>> can do this for x86_64 and x86_32. For IA-64, we still map everything below
>> max_page as there is no tboot issue.
>> 
>> What do you think of is approach?
>
> That's an orthogonal issue to avoiding Xen's RAM, but it at least ought to
> be easy to do. As long as it doesn't skip any private BIOS buffers for any
> devices which are still fully or partially under BIOS control (e.g., via
> SMM). But any such buffers above max_page would already be skipped.
>
> I can check in a patch for this as well as a patch to fix xen_in_range().
> I'll do both.
Changesets 19081 and 19082.
 -- Keir
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