Thread (21 messages) 21 messages, 6 authors, 2019-11-18

Re: [PATCH V5 1/4] ACPI: Support Generic Initiator only domains

From: Dan Williams <hidden>
Date: 2019-11-12 17:55:30
Also in: linux-acpi, linux-mm, lkml

[ add Tao Xu ]

On Fri, Oct 4, 2019 at 4:45 AM Jonathan Cameron
[off-list ref] 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/

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