linux-kernel - Re: [PATCH v2] PCI: Avoid putting some root ports into D3 on some Ryzen chips

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Message-ID: <C9ewaxwQKbro-b58prMr4pYnBsbGXBokgIk3OMYfT2OTCUPqSKeabS2ED02pN44ukBu88wjq1JCzyc4Rb9KHK5qce8L1WufgA27O3NKmTvA=@hughsie.com>
Date: Tue, 17 Dec 2024 10:10:47 +0000
From: Richard Hughes <richard@...hsie.com>
To: Werner Sembach <wse@...edocomputers.com>
Cc: Mario Limonciello <mario.limonciello@....com>, Bjorn Helgaas <bhelgaas@...gle.com>, "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>, Mika Westerberg <mika.westerberg@...ux.intel.com>, Richard Hughes <hughsient@...il.com>, ggo@...edocomputers.com, linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] PCI: Avoid putting some root ports into D3 on some Ryzen chips

On Monday, 16 December 2024 at 23:37, Werner Sembach <wse@...edocomputers.com> wrote:
> - AfuEfix64.efi <bios>.bin /p /r /capsule -> overwrites nothing
> I tried to explain fwupd and the requirements to our contact at the ODM, but
> just got the unhelpful reply to use the command above.

Can you name the ODM? I think essentially all the ODMs are uploading [valid] capsules to the LVFS now. If it helps, it's the same capsule needed for the LVFS as for the Microsoft WU (Windows Update) process and all ODMs should be intimately familiar with those requirements.

> Do you know how these AfuEfix64.efi flags are passed over to the capsule flash
> process? Then it might be possible to implement them in fwupd too.

The capsule, as expected by LVFS and WU, is actually a single *signed* binary that contains the flasher binary and the payload all wrapped up into one. The only time I've seen AfuEfix64.efi in use is for the system preload, as done in the factory.

Richard.