linux-kernel - Re: [PATCH v5 0/1] DMI: Scan for DMI table from DTS info

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Message-ID: <20251031-veteran-muskiness-657bce541e9b@spud>
Date: Fri, 31 Oct 2025 14:19:34 +0000
From: Conor Dooley <conor@...nel.org>
To: adriana <adriana@...sta.com>
Cc: ilias.apalodimas@...aro.org, ardb@...nel.org, trini@...sulko.com,
	robh@...nel.org, krzk@...nel.org, jdelvare@...e.com,
	frowand.list@...il.com, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org, vasilykh@...sta.com,
	arm.ebbr-discuss@....com, boot-architecture@...ts.linaro.org,
	linux-efi@...r.kernel.org, uefi-discuss@...ts.uefi.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v5 0/1] DMI: Scan for DMI table from DTS info

On Fri, Oct 31, 2025 at 04:59:16AM -0700, adriana wrote:
> Some bootloaders like U-boot, particularly for the ARM architecture,
> provide SMBIOS/DMI tables at a specific memory address. However, these
> systems often do not boot using a full UEFI environment, which means the
> kernel's standard EFI DMI scanner cannot find these tables.
> 
> This series adds support for the kernel to find these tables by
> reading the associated property from the Device Tree /chosen node. The
> bootloader can specify the physical addresses using the property
> "smbios3-entrypoint".
> 
> This patch implements the driver logic in dmi_scan.c.
> 
> Changes in v5:
>   - Removed linux,smbios3-entrypoint.yaml file and the first patch.
>   - Renamed property to "smbios3-entrypoint".

Please stop sending new versions as a reply to the old one.

> 
> Changes in v4:
>   - Renamed linux,smbios3-table.yaml file, removed mention of ARM/ARM64
>     (Patch 1/2).
>   - Drop the second definition of dmi_scan_from_dt() and fold checking
>     for CONFIG_OF (Patch 2/2).
>   - Drop unnecessary goto on the success case (Patch 2/2).
>   - Replace magic number for entrypoint size with SMBIOS3_ENTRY_POINT_SIZE
>     definition (Patch 2/2).
> 
> Changes in v3:
>   - Removed linux,smbios-table property, only keep the SMBIOSv3 property
>     (Patch 1/2).
>   - Search DT for linux,smbios3-table only, removed the code searching
>     for the previous property (Patch 2/2).
> 
> Changes in v2:
>   - Add missing Device Tree binding documentation (Patch 1/2).
>   - Split the original patch into a 2-part series (binding + driver).
>   - (No functional changes to the driver code in patch 2/2).
> 
> adriana (1):
>   drivers: firmware: dmi_scan: Add support for reading SMBIOS from DT
> 
>  drivers/firmware/dmi_scan.c | 54 +++++++++++++++++++++++++++++++++++++
>  1 file changed, 54 insertions(+)
> 
> -- 
> 2.51.0
> 
> 

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