From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matt Fleming Subject: Re: [PATCH v2] efi: dmi: List SMBIOS3 table before SMBIOS table Date: Wed, 27 May 2015 14:18:57 +0100 Message-ID: <20150527131857.GD3030@codeblueprint.co.uk> References: <20150430152305.26b89bd3@endymion.delvare> <20150430160401.GF3014@codeblueprint.co.uk> <20150526181152.GA3030@codeblueprint.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-efi-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Ard Biesheuvel Cc: Jean Delvare , "linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , Leif Lindholm , Matt Fleming , "Ivan.khoronzhuk" List-Id: linux-efi@vger.kernel.org On Wed, 27 May, at 12:30:37PM, Ard Biesheuvel wrote: > > OK. Then I guess we should at least document in > Documentation/ABI/stable/sysfs-firmware-efi-systab that the order in > which the entries are enumerated is part of the ABI. Makes perfect sense to me. How about this? --- >>From ccb5f08bb71ae4199c75668c6beacd6b47fa186c Mon Sep 17 00:00:00 2001 From: Matt Fleming Date: Wed, 27 May 2015 14:14:22 +0100 Subject: [PATCH] efi: Add 'systab' information to Documentation/ABI It's not clear right now that the order in which entries are displayed in /sys/firmware/efi/systab actually forms an ABI that userspace tools rely upon. Document the ABI along with the userspace tool that cares. Suggested-by: Ard Biesheuvel Cc: Jean Delvare Cc: Leif Lindholm Cc: Ivan Khoronzhuk Signed-off-by: Matt Fleming --- Documentation/ABI/testing/sysfs-firmware-efi | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-firmware-efi b/Documentation/ABI/testing/sysfs-firmware-efi index 05874da7ce80..e794eac32a90 100644 --- a/Documentation/ABI/testing/sysfs-firmware-efi +++ b/Documentation/ABI/testing/sysfs-firmware-efi @@ -18,3 +18,13 @@ Contact: Dave Young Description: It shows the physical address of config table entry in the EFI system table. Users: Kexec + +What: /sys/firmware/efi/systab +Date: April 2005 +Contact: linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org +Description: Displays the physical addresses of all EFI Configuration + Tables found via the EFI System Table. The order in + which the tables are printed forms an ABI and newer + versions are always printed first, i.e. ACPI20 comes + before ACPI. +Users: dmidecode -- 2.1.0 -- Matt Fleming, Intel Open Source Technology Center