linux-kernel - Re: [PATCH v4 2/2] firmware: google: Expose coreboot tables over sysfs

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Date:   Sun, 19 Apr 2020 19:07:43 -0500
From:   Samuel Holland <samuel@...lland.org>
To:     patrick.rudolph@...ements.com, linux-kernel@...r.kernel.org
Cc:     coreboot@...eboot.org,
        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>,
        Stephen Boyd <swboyd@...omium.org>
Subject: Re: [PATCH v4 2/2] firmware: google: Expose coreboot tables over
 sysfs

On 4/7/20 3:29 AM, patrick.rudolph@...ements.com wrote:
> From: Patrick Rudolph <patrick.rudolph@...ements.com>
> 
> Make all coreboot table entries available to userland. This is useful for
> tools that are currently using /dev/mem.
> 
> Besides the tag and size also expose the raw table data itself.
> 
> Update the ABI documentation to explain the new sysfs interface.
> 
> Tools can easily scan for the right coreboot table by reading
> /sys/bus/coreboot/devices/coreboot*/attributes/id
> The binary table data can then be read from
> /sys/bus/coreboot/devices/coreboot*/attributes/data
> 
> Signed-off-by: Patrick Rudolph <patrick.rudolph@...ements.com>

Reviewed-by: Samuel Holland <samuel@...lland.org>
Tested-by: Samuel Holland <samuel@...lland.org>

Cheers,
Samuel