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Date:   Tue, 23 May 2023 00:07:15 +0000
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Subject: Re: [ANNOUNCE / RFC] Periodic Upstream Call for KVM
From:   Sean Christopherson <seanjc@google.com>
To:     Chao Peng <chao.p.peng@linux.intel.com>
Cc:     kvm@vger.kernel.org, Paolo Bonzini <pbonzini@redhat.com>,
        Sagi Shahar <sagis@google.com>,
        Erdem Aktas <erdemaktas@google.com>,
        Anish Ghulati <aghulati@google.com>,
        Oliver Upton <oliver.upton@linux.dev>,
        James Houghton <jthoughton@google.com>,
        Anish Moorthy <amoorthy@google.com>,
        Ben Gardon <bgardon@google.com>,
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        Ricardo Koller <ricarkol@google.com>,
        Axel Rasmussen <axelrasmussen@google.com>,
        Aaron Lewis <aaronlewis@google.com>,
        Ashish Kalra <ashish.kalra@amd.com>,
        Babu Moger <babu.moger@amd.com>, Chao Gao <chao.gao@intel.com>,
        Chenyi Qiang <chenyi.qiang@intel.com>,
        David Woodhouse <dwmw@amazon.co.uk>,
        Emanuele Giuseppe Esposito <eesposit@redhat.com>,
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        Guang Zeng <guang.zeng@intel.com>,
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        Jim Mattson <jmattson@google.com>,
        Jing Liu <jing2.liu@intel.com>,
        Junaid Shahid <junaids@google.com>,
        Kai Huang <kai.huang@intel.com>,
        Leonardo Bras <leobras@redhat.com>,
        Like Xu <like.xu.linux@gmail.com>,
        Li RongQing <lirongqing@baidu.com>,
        "Maciej S . Szmigiero" <maciej.szmigiero@oracle.com>,
        Maxim Levitsky <mlevitsk@redhat.com>,
        Michael Roth <michael.roth@amd.com>,
        Michal Luczaj <mhal@rbox.co>,
        Mingwei Zhang <mizhang@google.com>,
        Nikunj A Dadhania <nikunj@amd.com>,
        Paul Durrant <pdurrant@amazon.com>,
        Peng Hao <flyingpenghao@gmail.com>,
        Peter Gonda <pgonda@google.com>, Peter Xu <peterx@redhat.com>,
        Robert Hoo <robert.hu@linux.intel.com>,
        Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>,
        Tom Lendacky <thomas.lendacky@amd.com>,
        Vipin Sharma <vipinsh@google.com>,
        Vitaly Kuznetsov <vkuznets@redhat.com>,
        Wanpeng Li <wanpengli@tencent.com>,
        Wei Wang <wei.w.wang@intel.com>,
        Xiaoyao Li <xiaoyao.li@intel.com>,
        Yu Zhang <yu.c.zhang@linux.intel.com>,
        Will Deacon <will@kernel.org>, Marc Zyngier <maz@kernel.org>,
        David Hildenbrand <david@redhat.com>,
        Fuad Tabba <tabba@google.com>,
        Isaku Yamahata <isaku.yamahata@gmail.com>,
        Qinglan Xiang <qinglan.xiang@intel.com>,
        Kai Svahn <kai.svahn@intel.com>,
        Margarita Maroto <margarita.maroto@intel.com>,
        Anil Keshavamurthy <anil.s.keshavamurthy@intel.com>,
        Nagareddy Reddy <nspreddy@google.com>,
        linux-kernel@vger.kernel.org
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On Mon, May 22, 2023, Chao Peng wrote:
> On Fri, May 12, 2023 at 04:10:27PM -0700, Sean Christopherson wrote:
> >   PT   (6am)
> >   MT   (7am)
> >   CT   (8am)
> >   ET   (9am)
> >   WET  (2pm)
> >   CET  (3pm)
> >   EET  (4pm)
> >   EST  (5pm)
> >   CST  (9pm)
> >   NZST (1am)
> 
> This looks good, 9pm is not too late for PRC people.
> 
> > 
> > The obvious alternative would be to invert the schedule and have the sync be in
> > the evening/night for Pacific Time, but to get 6am for ARM folks, we end up with:
> > 
> >   PT   (10pm)
> >   MT   (11pm)
> >   CT   (12pm)
> >   ET   (1am)
> >   WET  (6am)
> >   CET  (7am)
> >   EET  (8am)
> >   EST  (9am)
> >   CST  (1pm)
> >   NZST (5pm)
> > 
> > which is quite unreasonable for pretty much everyone based in the US.  Earlier
> > than 6am for WET is likewise unreasonable and will result in people not attending.
> > 9pm for China is also unreasonable, but I hope that it's not completely ridiculous
> > and is doable enough that people can at least attend on an as-needed basis.  Sorry
> > Kai, as the sole representative from New Zealand, you get hosed :-(
> > 
> > Wednesday because holidays and (short) vacations most often land at the beginning
> > and end of the week.
> > 
> > 60 minutes because I'm not waking up at dawn for anything less, and anything
> > more will likely have dimishing returns, especially for folks on the edges of
> > the time zone table.
> > 
> > Lastly, the big unknown is which video communication software to use.  My default
> > is obviously Google Meet, but I've been told that Meet is unusable in some
> > countries. :-/  My only requirements (beyond basic, obvious functionality) are
> > that (a) there's a web interface (no install required) and that (b) the calls can
> > be recorded.
> 
> Google Meet should work for me, but may not for every (PRC) people.
> Besides no installation, if no registration would be even better ;)
> Maybe we can run with Google Meet for the first session(s) if you
> havn't get one in your mind, it's not too hard to switch to alternative
> at a later time right?

Ya, switching should be no problem.  Let's try Google Meet and go from there.
Thanks much for the input!

> > To kick things off, I am leaning toward a "launch" date of May 24th (Pacific),
> > with KVM guest private mem (a.k.a. UPM) as the first topic.
> 
> Thanks for driving this, yes for UPM I would definitely join.

I'm going to push out the inagaural date one week until May 31st, partly to give
more time for this to get widely disseminated, but mostly because I need to write
down my various thoughts on where to go with UPM, and I don't think I'll get that
done before Wednesday.  That'll also give me time to setup a public calendar so
that people can get reminders and whatnot.