linux-kernel - Re: [PATCH v4 0/9] [PATCH v3 0/9] platform/wmi: Introduce marshalling support

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Message-ID: <c4c14edf-8d84-439e-ba71-135bb47ee49f@gmx.de>
Date: Tue, 20 Jan 2026 16:06:23 +0100
From: Armin Wolf <W_Armin@....de>
To: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
 hansg@...nel.org
Cc: platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux@...ssschuh.net, Dell.Client.Kernel@...l.com, corbet@....net,
 linux-doc@...r.kernel.org
Subject: Re: [PATCH v4 0/9] [PATCH v3 0/9] platform/wmi: Introduce marshalling
 support

Am 20.01.26 um 15:45 schrieb Ilpo Järvinen:

> On Fri, 16 Jan 2026 21:41:07 +0100, Armin Wolf wrote:
>
>> The Windows WMI-ACPI driver likely uses wmilib [1] to interact with
>> the WMI service in userspace. Said library uses plain byte buffers
>> for exchanging data, so the WMI-ACPI driver has to convert between
>> those byte buffers and ACPI objects returned by the ACPI firmware.
>>
>> The format of the byte buffer is publicly documented [2], and after
>> some reverse eingineering of the WMI-ACPI driver using a set of custom
>> ACPI tables, the following conversion rules have been discovered:
>>
>> [...]
>>
>> Thank you for your contribution, it has been applied to my local
>> review-ilpo-next branch. Note it will show up in the public
>> platform-drivers-x86/review-ilpo-next branch only once I've pushed my
>> local branch there, which might take a while.

Thank you :).

>>
>> The list of commits applied:
>> [1/9] platform/wmi: Introduce marshalling support
>>        commit: 015b70a6ae697f5dac3562e4ab45ee275d98860b
>> [2/9] platform/wmi: Add kunit test for the marshalling code
>>        commit: 29dfba69c3ddb7945cd772042c6a9ce770c1ba22
>> [3/9] platform/wmi: Add helper functions for WMI string conversions
>>        commit: b990a06f7ec6dc3ceecd8015c3b421690f267122
>> [4/9] platform/wmi: Add kunit test for the string conversion code
>>        commit: 0e1a8143e79713eef7e027737fed259aa58866e7
>> [5/9] platform/x86: intel-wmi-sbl-fw-update: Use new buffer-based WMI API
>>        commit: 534f685d8a952371148e1374576f8ede2919ec1d
>> [6/9] platform/x86/intel/wmi: thunderbolt: Use new buffer-based WMI API
>>        commit: e210986f52b657301d009e23344e3effec12bbeb
>> [7/9] platform/x86: xiaomi-wmi: Use new buffer-based WMI API
>>        commit: bb7527c63f8567d69a22a818aa5999be47c5d479
>> [8/9] platform/x86: wmi-bmof: Use new buffer-based WMI API
>>        commit: 926a266575a21e96c4c0b9c16b1da1f7fda5a519
>> [9/9] platform/wmi: Update driver development guide
>>        commit: 2177a02246ffef9ed4a01af2942119e601312965
>>
>> --
>>   i.
>>