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From: Alexander Graf <agraf@suse.de>
To: Kun Wang <wangkun@cn.ibm.com>
Cc: kvm-ppc@vger.kernel.org,
	"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
	Scott Wood <scottwood@freescale.com>,
	Yoder Stuart-B08248 <B08248@freescale.com>
Subject: Re: KVM on IBM PowerEN processor
Date: Tue, 30 Aug 2011 11:45:17 +0200	[thread overview]
Message-ID: <4E5CB12D.1070802@suse.de> (raw)
In-Reply-To: <OF86ED43B5.E5B63A29-ON482578FB.00344CC1-482578FB.00344AEB@cn.ibm.com>

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@vger.kernel.org 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

       reply	other threads:[~2011-08-30  9:45 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <OF86ED43B5.E5B63A29-ON482578FB.00344CC1-482578FB.00344AEB@cn.ibm.com>
2011-08-30  9:45 ` Alexander Graf [this message]
2011-08-30 14:15   ` KVM on IBM PowerEN processor Stuart Yoder
2011-08-30 16:31     ` Kun Wang
2011-09-12 12:18       ` Caraman Mihai Claudiu-B02008
2011-09-12 10:59     ` Benjamin Herrenschmidt
2011-08-30 16:49   ` Kun Wang

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