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From: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Date: Fri, 27 Oct 2017 14:20:27 +0100
Message-ID: <CAKv+Gu-8P4Oz2yt_0oAy2p3R=MynjGXjNWdJRz6ZQDiOjheFmA@mail.gmail.com>
To: Udit Kumar <udit.kumar@nxp.com>
Cc: Pankaj Bansal <pankaj.bansal@nxp.com>, Andrew Fish <afish@apple.com>, 
 "Olivier.Martin@arm.com" <Olivier.Martin@arm.com>, 
 Vladimir Olovyannikov <vladimir.olovyannikov@broadcom.com>, 
 "edk2-devel@lists.01.org" <edk2-devel@lists.01.org>
Subject: Re: Storing Non volatile variables on SD/NAND
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On 27 October 2017 at 10:37, Udit Kumar <udit.kumar@nxp.com> wrote:
> Thanks Ard.
>
>> The UEFI spec allows you to expose entry points into a DXE_RUNTIME_DRIVER
>> module via a UEFI configuration table, and the OS can use a driver that uses the
>> abstracted device rather than the real device. Performance is going to be
>
> Could you point me to some sample driver using this scheme,
> Mainly around OS implementation
>

I don't know of any examples, unfortunately. This is uncharted territory afaik.