Re: [Xen-devel] Re: pvclock in userland (reprise)

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

On 19/09/2009 01:33, "Jeremy Fitzhardinge" <jeremy@xxxxxxxx> wrote:

>> Oh yes, I remember we talked about that before. That is possible, but the
>> design fell down on other points. I think guest kernel involvement, even if
>> only as a kernel driver, should make this more tractable.
> 
> Xen's memory isn't mappable in a 32-bit compat domain, so you'd need to
> come up with something else there.  Does Xen still claim the top part of
> the 32-bit address space?

Yes, it puts the M2P there.

 -- Keir



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