From: Matt Fleming <matt-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>
To: Peter Jones <pjones-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Ard Biesheuvel
<ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
Lukas Wunner <lukas-JFq808J9C/izQB+pC5nmwQ@public.gmane.org>
Subject: Re: [PATCH 2/3] efi: add firmware version information to sysfs
Date: Tue, 13 Sep 2016 14:24:34 +0100 [thread overview]
Message-ID: <20160913132434.GJ3872@codeblueprint.co.uk> (raw)
In-Reply-To: <1473260186-4500-2-git-send-email-pjones-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
On Wed, 07 Sep, at 10:56:25AM, Peter Jones wrote:
> This adds the EFI Spec version from the system table to sysfs as
> /sys/firmware/efi/spec_version .
>
> Userland tools need this information in order to work around
> specification deficiencies in 2.4 and earlier firmwares. Specifically,
> UEFI 2.4 and 2.5+ treat management of BootOrder very differently (See
> UEFI 2.4 section 3.1.1 vs UEFI 2.5 section 3.1), which means on older
> firmware we'll want to work around BDS's boot order management by adding
> fwupdate entries to BootOrder. We'd prefer not to do this on newer
> firmware, as it is both non-sensical in terms of what it expresses, and
> it results in more relatively failure prone flash writes.
>
> Signed-off-by: Peter Jones <pjones-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> Reviewed-by: Lukas Wunner <lukas-JFq808J9C/izQB+pC5nmwQ@public.gmane.org>
> ---
> Documentation/ABI/testing/sysfs-firmware-efi | 6 +++
> drivers/firmware/efi/efi.c | 65 ++++++++++++++++++++++++++++
> 2 files changed, 71 insertions(+)
Looks fine to me.
next prev parent reply other threads:[~2016-09-13 13:24 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-23 16:13 [PATCH 1/2] efi: don't call the system table version the runtime services version Peter Jones
[not found] ` <1471968832-19847-1-git-send-email-pjones-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-08-23 16:13 ` [PATCH 2/2] efi: add firmware version information to sysfs Peter Jones
[not found] ` <1471968832-19847-2-git-send-email-pjones-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-08-24 10:30 ` Lukas Wunner
[not found] ` <20160824103021.GA22888-JFq808J9C/izQB+pC5nmwQ@public.gmane.org>
2016-09-02 18:57 ` Peter Jones
[not found] ` <20160902185758.GB9082-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-09-02 20:57 ` [PATCH 1/3] efi: don't call the system table version the runtime services version Peter Jones
[not found] ` <1472849873-32041-1-git-send-email-pjones-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-09-02 20:57 ` [PATCH 2/3] efi: add firmware version information to sysfs Peter Jones
[not found] ` <1472849873-32041-2-git-send-email-pjones-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-09-05 12:00 ` Lukas Wunner
[not found] ` <20160905120006.GA27048-JFq808J9C/izQB+pC5nmwQ@public.gmane.org>
2016-09-06 15:35 ` Peter Jones
2016-09-06 15:51 ` [PATCH 1/3] efi: don't call the system table version the runtime services version Peter Jones
[not found] ` <1473177071-11791-1-git-send-email-pjones-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-09-06 15:51 ` [PATCH 2/3] efi: add firmware version information to sysfs Peter Jones
[not found] ` <1473177071-11791-2-git-send-email-pjones-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-09-07 12:23 ` Lukas Wunner
[not found] ` <20160907122339.GB28333-JFq808J9C/izQB+pC5nmwQ@public.gmane.org>
2016-09-07 14:56 ` [PATCH 1/3] efi: don't call the system table version the runtime services version Peter Jones
[not found] ` <1473260186-4500-1-git-send-email-pjones-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-09-07 14:56 ` [PATCH 2/3] efi: add firmware version information to sysfs Peter Jones
[not found] ` <1473260186-4500-2-git-send-email-pjones-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-09-13 13:24 ` Matt Fleming [this message]
2016-09-07 14:56 ` [PATCH 3/3] efi: Format EFI version prints the way the standard says Peter Jones
[not found] ` <1473260186-4500-3-git-send-email-pjones-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-09-15 9:18 ` Matt Fleming
[not found] ` <20160915091822.GA16797-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>
2016-09-15 13:13 ` Peter Jones
[not found] ` <20160915131305.5mhdpc6vql5nv2gw-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-09-16 9:40 ` Matt Fleming
[not found] ` <20160916094006.GD16797-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>
2016-09-16 14:42 ` Peter Jones
2016-09-13 12:32 ` [PATCH 1/3] efi: don't call the system table version the runtime services version Matt Fleming
2016-09-06 15:51 ` [PATCH 3/3] efi: Format EFI version prints the way the standard says Peter Jones
[not found] ` <1473177071-11791-3-git-send-email-pjones-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-09-07 12:21 ` Lukas Wunner
2016-09-02 20:57 ` Peter Jones
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