WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-ia64-devel

RE: [Xen-ia64-devel][Patch]Add two PALcallswhichfixSMPwindowsinstallatio

To: "Alex Williamson" <alex.williamson@xxxxxx>
Subject: RE: [Xen-ia64-devel][Patch]Add two PALcallswhichfixSMPwindowsinstallation crashing bug
From: "Xu, Anthony" <anthony.xu@xxxxxxxxx>
Date: Tue, 3 Apr 2007 10:11:14 +0800
Cc: xen-ia64-devel <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx>
Delivery-date: Mon, 02 Apr 2007 19:10:00 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
In-reply-to: <1175564397.13963.173.camel@bling>
List-help: <mailto:xen-ia64-devel-request@lists.xensource.com?subject=help>
List-id: Discussion of the ia64 port of Xen <xen-ia64-devel.lists.xensource.com>
List-post: <mailto:xen-ia64-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-ia64-devel>, <mailto:xen-ia64-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-ia64-devel>, <mailto:xen-ia64-devel-request@lists.xensource.com?subject=unsubscribe>
Sender: xen-ia64-devel-bounces@xxxxxxxxxxxxxxxxxxx
Thread-index: Acd1kQNoOciUVF1RQlOy7sKik/n+egAAyBww
Thread-topic: [Xen-ia64-devel][Patch]Add two PALcallswhichfixSMPwindowsinstallation crashing bug
Alex Williamson write on 2007年4月3日 9:40:
> Hi Anthony,
> 
> On Tue, 2007-04-03 at 09:22 +0800, Xu, Anthony wrote:
>> Alex Williamson write on 2007年4月3日 5:52:
>>> On Mon, 2007-04-02 at 15:08 -0600, Alex Williamson wrote:
>>>> This suggests to me that maybe it's not the
>>>> dual-core vs single-core that's really causing problems, but
>>>> something windows does with "extra" CPUs that we aren't emulating.
>>>> Thanks,
>> 
>> One question, can windows be installed on  SC Montecito with more
>> than two processors? 
> 
>    I don't know.  The engineers I talked to didn't know of any
> problems with Windows on single-core Montecitos, so I assume it works.
We can install windows on madison with 4 processors, but only two are visible 
to windows,
The other two are deadlooping at the very beginning of window boot. Windows 
doesn't recognize 
these two processors.

> 
>> 
>>>    After further consideration, you observed the "extra" CPUs idling
>>> in SAL.
>> 
>> Sorry, I described this incorretly, the "extra" CPUs are deaplooping
>> at the very beginning of windows boot.
> 
>    Ok, so no return to SAL then.
> 
>> 
>>      I don't think this issue is related with vCPU hotplug.
>> We can install windows on Montecito with 4 Logical processors, and
>> these 4 logical processors are running inside windows, means they
>> are up. 
>> And after applying this patch, we can install windows on XEN/VTI
>> domain with 4 vcpu Running.
> 
>    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.


thanks,
anthony



> 
>       Alex

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