On Tue, Aug 30, 2011 at 4:45 AM, Alexander Graf <agraf@xxxxxxx> wrote: > 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 :) Also, note-- we (Freescale) do have a patchset coming soon for the e500mc which is a 2.06 embedded 32-bit CPU with category E.HV. We've had this running for a while and are close to finishing some cleanup before posting upstream. We are are also starting to look at 64-bit support for our e5500 CPU we should be a delta on top of the e500mc support. Just want to make you aware of some current work that may overlap your A2 KVM support... Stuart -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
