Re: [Xen-ia64-devel] [PATCH][RFC][TAKE4] the P2M/VP patches

[Tristan Gingold <Tristan.Gingold@xxxxxxxx>]

Le Mercredi 12 Avril 2006 08:12, Tian, Kevin a écrit :
> From: Isaku Yamahata [mailto:yamahata@xxxxxxxxxxxxx]
[...]
> >That's an access to keyboard port possibly because now xen0/xenU
> >
> >> is compiled as one image with more drivers added. Maybe it's better
> >> for us to map all 64M mmio area of domU to a dummy page at current
> >> stage, to remove warnings and walk around some native drivers
> >> within domU. Later when driver domain is added, we can map specific
> >> mmio page to machine mmio range per configuration.
> >
> >I agree with you.
> >But this issues isn't specific to the P2M/VP patch.
I don't agree with this solution.  I really prefer to have warnings because it 
means something got wrong.  domU shouldn't access to mmio.

If you use a dummy page, a device driver may loop.

Tristan.


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