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[217.61.220.45]) by smtp.gmail.com with ESMTPSA id 136sm842584wms.32.2017.03.15.08.22.48 (version=TLS1_2 cipher=AES128-SHA bits=128/128); Wed, 15 Mar 2017 08:22:48 -0700 (PDT) Date: Wed, 15 Mar 2017 16:22:37 +0100 From: Christoffer Dall To: Andrew Jones Subject: Re: [PATCH RFC 6/7] ARM64: KVM: Support heterogeneous system Message-ID: <20170315152237.GR1277@cbox> References: <1484559214-2248-1-git-send-email-zhaoshenglong@huawei.com> <1484559214-2248-7-git-send-email-zhaoshenglong@huawei.com> <20170128145551.sknp447ieue56xgo@hawk.localdomain> <20170315115044.GO1277@cbox> <20170315125113.erfl2gk6fwmbccsn@kamzik.brq.redhat.com> <20170315133645.GQ1277@cbox> <20170315140633.jtultotyihql7qlr@kamzik.brq.redhat.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20170315140633.jtultotyihql7qlr@kamzik.brq.redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) Cc: marc.zyngier@arm.com, qemu-arm@nongnu.org, wu.wubin@huawei.com, kvmarm@lists.cs.columbia.edu X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu X-TUID: 3JYKQFsBAxyV On Wed, Mar 15, 2017 at 03:06:33PM +0100, Andrew Jones wrote: > On Wed, Mar 15, 2017 at 02:36:45PM +0100, Christoffer Dall wrote: > > > If QEMU wants to know > > > whether or not the host it's running on is heterogeneous, then > > > it can just query sysfs, rather than ask KVM. > > > > > > > Can it? Is this information available in a reliable way from userspace? > > I don't know much (anything) about it, but, afaict, yes. See > https://lkml.org/lkml/2017/1/19/380 > > > > > I'm sure I missed some aspect of this discussion though. > > > > > > Me too. As we discussed, it's probably time to try and hash out a fresh > > > design doc. It'd be good to get a clear design agreed upon before > > > returning to the patches. > > > > > > > Yes, it's on my list. > > I'm happy to help with this, even to take a stab at the first draft. Just > let me know if you or Shannon prefer to do the draft yourselves. If you > don't have a preference, then I can start working on it pretty soon. > I'd be really happy for you to draft a new design doc, and I can review in private or publicly first as you prefer. Thanks, -Christoffer _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm