RE: [Xen-ia64-devel] alt_itlb_miss?

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

>From: Tristan Gingold [mailto:Tristan.Gingold@xxxxxxxx]
>Sent: 2006年4月24日 16:24
>
>Le Lundi 24 Avril 2006 09:52, Tian, Kevin a écrit :
>> Hi, Kan,
>>      Thanks for detail figure. From architecture correctness, I think
>> your patch is yes required though case 2 is only walked before dom0
>> loads rr7 (After that, vhpt table will be enabled from then on and case
>> 1 is the only path then).
>Is VHPT enabled for rr7 ?
>It really depends on where you look.  eg in vhpt.h:
>#define VHPT_ENABLED 1
>#define VHPT_ENABLED_REGION_0_TO_6 1
>#define VHPT_ENABLED_REGION_7 0
>
>There are cleanup to do...
>

Above definition is stale and never used nowadays which does 
need cleanup. See set_one_rr where rr7 will be set with vhpt 
table enabled absolutely at the first time when guest tries to 
mov_to_rr. Even VHPT_ENABLED itself is questionable. Does 
anybody ever expect to run a xen/ia64 without vhpt table? I don't 
think so...

Thanks,
Kevin

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