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From:   Dan Williams <dan.j.williams@intel.com>
Date:   Tue, 12 Nov 2019 09:55:17 -0800
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Subject: Re: [PATCH V5 1/4] ACPI: Support Generic Initiator only domains
To:     Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc:     Linux MM <linux-mm@kvack.org>,
        Linux ACPI <linux-acpi@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Linux ARM <linux-arm-kernel@lists.infradead.org>,
        X86 ML <x86@kernel.org>, Keith Busch <keith.busch@intel.com>,
        =?UTF-8?B?SsOpcsO0bWUgR2xpc3Nl?= <jglisse@redhat.com>,
        "Rafael J . Wysocki" <rjw@rjwysocki.net>,
        Linuxarm <linuxarm@huawei.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Tao Xu <tao3.xu@intel.com>
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[ add Tao Xu ]

On Fri, Oct 4, 2019 at 4:45 AM Jonathan Cameron
<Jonathan.Cameron@huawei.com> wrote:
>
> Generic Initiators are a new ACPI concept that allows for the
> description of proximity domains that contain a device which
> performs memory access (such as a network card) but neither
> host CPU nor Memory.
>
> This patch has the parsing code and provides the infrastructure
> for an architecture to associate these new domains with their
> nearest memory processing node.

Thanks for this Jonathan. May I ask how this was tested? Tao has been
working on qemu support for HMAT [1]. I have not checked if it already
supports generic initiator entries, but it would be helpful to include
an example of how the kernel sees these configurations in practice.

[1]: http://patchwork.ozlabs.org/cover/1096737/