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RE: [Xen-ia64-devel][Patch]Add two PAL callswhichfixSMPwindowsinstallation crashing bug
- To: "Alex Williamson" <alex.williamson@xxxxxx>
- From: "Xu, Anthony" <anthony.xu@xxxxxxxxx>
- Date: Tue, 3 Apr 2007 09:22:21 +0800
- Cc: xen-ia64-devel <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx>
- Delivery-date: Mon, 02 Apr 2007 18:21:02 -0700
- List-id: Discussion of the ia64 port of Xen <xen-ia64-devel.lists.xensource.com>
- Thread-index: Acd1cSzXTch+sC6XScG+9vkLyk1AIwAGeROA
- Thread-topic: [Xen-ia64-devel][Patch]Add two PAL callswhichfixSMPwindowsinstallation crashing bug
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.
One question, can windows be installed on SC Montecito with more than two
> 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.
> I observed during install that PAL calls were made on the
> 3rd CPU just prior to the panic. The only way I know CPUs could get
> back into idling in SAL is through the b0 return path. Do we get the
> same panic with a Linux guest if a CPU hotplug operation is
> attempted? I tried to test this, but I can't seem to get a 2.6.20
> kernel to boot (the same kernel boots fine with Tristan's GFW). Is
> this simply a matter that the GFW needs to support vCPU hotplug?
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
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