linux-kernel - Re: [PATCH 0/2] firmware: google: Expose coreboot tables and CBMEM

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Message-ID: <5dcf255d.1c69fb81.e4c8b.0c06@mx.google.com>
Date:   Fri, 15 Nov 2019 14:23:24 -0800
From:   Stephen Boyd <swboyd@...omium.org>
To:     linux-kernel@...r.kernel.org, patrick.rudolph@...ements.com
Cc:     coreboot@...eboot.org,
        Patrick Rudolph <patrick.rudolph@...ements.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Allison Randal <allison@...utok.net>,
        Alexios Zavras <alexios.zavras@...el.com>,
        Julius Werner <jwerner@...omium.org>,
        Samuel Holland <samuel@...lland.org>
Subject: Re: [PATCH 0/2] firmware: google: Expose coreboot tables and CBMEM

Quoting patrick.rudolph@...ements.com (2019-11-15 08:15:14)
> From: Patrick Rudolph <patrick.rudolph@...ements.com>
> 
> As user land tools currently use /dev/mem to access coreboot tables and
> CBMEM, provide a better way by using sysfs attributes.
> 
> Unconditionally expose all tables and buffers making future changes in
> coreboot possible without modifying a kernel driver.
> 
> Patrick Rudolph (2):
>   firmware: google: Expose CBMEM over sysfs
>   firmware: google: Expose coreboot tables over sysfs
> 
>  drivers/firmware/google/Kconfig          |   6 +
>  drivers/firmware/google/Makefile         |   1 +
>  drivers/firmware/google/cbmem-coreboot.c | 164 +++++++++++++++++++++++
>  drivers/firmware/google/coreboot_table.c |  59 ++++++++
>  drivers/firmware/google/coreboot_table.h |  13 ++

There should be some Documentation/ABI updates here too so we know how
the sysfs files work.