linux-kernel - Re: [PATCH v2] efi: add ovmf debug log driver

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Message-ID: <c2cec176-007b-4944-b72e-ce27290c98e0@kernel.org>
Date: Wed, 9 Jul 2025 15:59:51 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Ard Biesheuvel <ardb@...nel.org>, Gerd Hoffmann <kraxel@...hat.com>
Cc: linux-efi@...r.kernel.org, open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] efi: add ovmf debug log driver

On 08/07/2025 15:06, Ard Biesheuvel wrote:
> On Tue, 8 Jul 2025 at 22:56, Gerd Hoffmann <kraxel@...hat.com> wrote:
>>
>> Recent OVMF versions (edk2-stable202508 + newer) can write their debug
>> log to a memory buffer.  This driver exposes the log content via sysfs
>> (/sys/firmware/efi/ovmf_debug_log).
>>
>> Signed-off-by: Gerd Hoffmann <kraxel@...hat.com>
>> ---
>>  include/linux/efi.h                   |   2 +
>>  drivers/firmware/efi/efi.c            |   8 ++
>>  drivers/firmware/efi/ovmf-debug-log.c | 136 ++++++++++++++++++++++++++
>>  drivers/firmware/efi/Kconfig          |   8 ++
>>  drivers/firmware/efi/Makefile         |   1 +
>>  5 files changed, 155 insertions(+)
>>  create mode 100644 drivers/firmware/efi/ovmf-debug-log.c
>>
> 
> Thanks, I've queued this up now.

Giving people 10 minutes for review?

Best regards,
Krzysztof