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Date: Tue, 27 Jun 2017 04:39:43 +0000
From: Alexey Dokuchaev <danfe@FreeBSD.org>
To: Doug Ambrisko <ambrisko@FreeBSD.org>
Cc: src-committers@freebsd.org, svn-src-all@freebsd.org,
 svn-src-head@freebsd.org
Subject: Re: svn commit: r307326 - head/sys/boot/efi/loader
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On Fri, Oct 14, 2016 at 05:10:53PM +0000, Doug Ambrisko wrote:
> New Revision: 307326
> URL: https://svnweb.freebsd.org/changeset/base/307326
> 
> Log:
>   In UEFI mode expose the SMBIOS anchor base address via kenv so the kernel
>   etc. can find out where the SMBIOS entry point is located.  In pure
>   UEFI mode the BIOS is not mapped into the standard address space so the
>   SMBIOS table might not appear between 0xf0000 and 0xfffff.  The
>   UEFI environment can report this the location of the anchor.  If it is
>   reported then expose it as hint.smbios.0.mem. [...]
>   
>   Linux exposes this information via the /sys/firmware/efi/systab file
>   which dmidecode looks at.  We should update dmidecode to do this the
>   FreeBSD way when we determine what that is!

We just did: https://svnweb.freebsd.org/changeset/ports/444412 (sorry it
took us eight months).

./danfe