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

["Tian, Kevin" <kevin.tian@xxxxxxxxx>]

>From: Tristan Gingold [mailto:Tristan.Gingold@xxxxxxxx]
>Sent: 2006年4月12日 15:08
>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.
>

Either way. Currently return 0 after warning actually same as dummy 
page.

Thanks,
Kevin

_______________________________________________
Xen-ia64-devel mailing list
Xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-ia64-devel