Re: KVM on IBM PowerEN processor

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于 2011-8-30 17:45, Alexander Graf 写道:
Hi Kun,

On 08/29/2011 11:31 AM, Kun Wang wrote:
Hi, everyone,

This is Kun Wang from IBM Research China. I and my team have been working
on IBM PowerEN processor in recent years, including its simulation,
lib/runtime optimization and etc. Now we start the work to enable KVM on
PowerEN processor. Since the A2 core of PowerEN follows Power ISA v2.06
(more specifically, book3e and 64-bit), I believe 99% of our work will
stick to the ISA, and hence can be leveraged by others.

As the new one to this KVM world, I and my team definitely need your help.
Looking forward to talking and working with you guys in the future.

Welcome to the PowerPC KVM world! I'm looking very much forward to working with you there. Please always CC kvm@xxxxxxxxxxxxxxx for emails you send to kvm-ppc@vger, unless you think of it as completely off-generic-kvm discussions. I like the idea of having more clever people involved in the PPC KVM process and by CC'ing kvm@vger, we get more exposure.

The Freescale e500 cores are basically BookE 2.06 compliant with a few specialties here and there. Have you looked at their code? Sure, it's 32-bit as is now but there is definitely work going on at Freescale to get it 64-bit too.

Maybe it makes sense to take the current code as a starting point and slowly move towards an architecture that is more generic. Maybe it makes sense to start from scratch and actually design something flexible that splits guest and host TLB code, so we could potentially run cross-book KVM in the future (which I would love to see happen! Just imagine running a PowerEN guest on a POWER7 system).

Either way, please make sure to coordinate any efforts with me and Scott so we don't walk off in different directions and only get to realize we went down the wrong path when there's already a 100 patches patch set on the mailing list :)


Again, welcome on board!

Alex


Thanks, Alex.

Yes, we are aware of the e500 work done by Freescale folks. I agree with you that we should coordinate together to achieve as more synergy.

Best regards,
Kun Wang

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