RE: [Xen-ia64-devel][Patch]Add twoPALcallswhichfixSMPwindowsinstallation crashing bug

["Xu, Anthony" <anthony.xu@xxxxxxxxx>]

Alex Williamson write on 2007年4月3日 10:40:
> On Tue, 2007-04-03 at 10:11 +0800, Xu, Anthony wrote:
>>> 
>>>    What happens with more than 8 vCPUs on an "Enterprise Edition"
>>> license?  It seems more than coincidental that they fail so
>>> similarly. Thanks,
>> Yes, they fail similarly, because they are running the same funtions
>> when failing. 
>> This function will write zero to all control register with psr.ic=0,
>> when writing to pta, it will trigger reserverd bit fault, inside xen
>> due to this gp fault happens with vpsr.ic=0, 
>> Xen panic this domain, if Xen doesn't panic this domain, just print
>> warnning message, and inject Gp fault to guest OS, I think windows
>> can be installed successfully just like native. 
>> I'll try this.
> 
>    How does representing the processors as dual-core avoid this
> problem?
I don't know, I guest it is native issue.
This problem happens on Madison processor.
But it doesn't happen on Montecito with DCST.

So, XEN only need to emulate Montecito with DCST to resolve this problem.


Thanks,
anthony


> Thanks for verify win2003 already installs as a 2-way guest,
> I thought that might be the case, but didn't have the opportunity to
> verify. Thanks,
> 
>       Alex

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