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

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Message-ID: <0914098e-e61b-40c1-9b6e-357832fef5a9@gmx.de>
Date: Mon, 12 Jan 2026 19:00:25 +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 v3 0/9] platform/wmi: Introduce marshalling support

Am 12.01.26 um 16:33 schrieb Ilpo Järvinen:

> On Fri, 09 Jan 2026 22:46:10 +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.
>
> The list of commits applied:
> [1/9] platform/wmi: Introduce marshalling support
>        commit: bfa284e9f5e77c9e7389116a403b1dc478f2d58e
> [2/9] platform/wmi: Add kunit test for the marshalling code
>        commit: 1e4746e93871168f50f237e9e316dc6c9a883719
> [3/9] platform/wmi: Add helper functions for WMI string conversions
>        commit: 3ae53ee45d5c958aae883173d1e4cafe15564cce
> [4/9] platform/wmi: Add kunit test for the string conversion code
>        commit: 3579df4cf0b5a3c1d50146c72b13bb4215d509b5
> [5/9] platform/x86: intel-wmi-sbl-fw-update: Use new buffer-based WMI API
>        commit: ca7861de6a37a52bf75fe41be51fd39162a9281d
> [6/9] platform/x86/intel/wmi: thunderbolt: Use new buffer-based WMI API
>        commit: 7f331e5f10ebb72d3bbc83470e4b409337024093
> [7/9] platform/x86: xiaomi-wmi: Use new buffer-based WMI API
>        commit: e9997669653bc0622f9ed8a3fe778cc989d1e254
> [8/9] platform/x86: wmi-bmof: Use new buffer-based WMI API
>        commit: 70d37a7fd341e5c0090385034feb8f6f93a56ae7
> [9/9] platform/wmi: Update driver development guide
>        commit: 0835f9737d4705a9f72de05fde09ba806dcbc862

Thank you :)

> --
>   i.
>
>