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Date:   Wed, 20 Dec 2017 09:41:07 -0700
From:   Ross Zwisler <>
To:     Ross Zwisler <>
Cc:     Michal Hocko <>,,
        "Anaczkowski, Lukasz" <>,
        "Box, David E" <>,
        "Kogut, Jaroslaw" <>,
        "Koss, Marcin" <>,
        "Koziej, Artur" <>,
        "Lahtinen, Joonas" <>,
        "Moore, Robert" <>,
        "Nachimuthu, Murugasamy" <>,
        "Odzioba, Lukasz" <>,
        "Rafael J. Wysocki" <>,
        "Rafael J. Wysocki" <>,
        "Schmauss, Erik" <>,
        "Verma, Vishal L" <>,
        "Zheng, Lv" <>,
        Andrew Morton <>,
        Balbir Singh <>,
        Brice Goglin <>,
        Dan Williams <>,
        Dave Hansen <>,
        Jerome Glisse <>,
        John Hubbard <>,
        Len Brown <>,
        Tim Chen <>,,,,,
Subject: Re: [PATCH v3 0/3] create sysfs representation of ACPI HMAT

On Mon, Dec 18, 2017 at 01:35:47PM -0700, Ross Zwisler wrote:
> On Thu, Dec 14, 2017 at 02:00:32PM +0100, Michal Hocko wrote:
> > What is the testing procedure? How can I setup qemu to simlate such HW?
> Well, the QEMU table simulation is gross, so I'd rather not get everyone
> testing with that.  Injecting custom HMAT and SRAT tables via initrd/initramfs
> is a much better way:
> Dan recently posted a patch that lets this happen for the HMAT:
> I'm working right now on getting an easier way to generate HMAT tables - I'll
> let you know when I have something working.

I've posted details on how to set up test configurations using injected HMAT
and SRAT tables here:

So far I've got two different sample configs, and we can add more as they are
useful.  Having the sample configs in github is also nice because if someone
finds a config that causes a kernel issue it can be reported then added to
this list of example configs for future testing.

Please let me know if you have trouble getting this working.

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