lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <1357219085-4312-1-git-send-email-matt@console-pimps.org>
Date:	Thu,  3 Jan 2013 13:18:03 +0000
From:	Matt Fleming <matt@...sole-pimps.org>
To:	Steve Langasek <steve.langasek@...onical.com>,
	Matthew Garrett <mjg59@...f.ucam.org>
Cc:	linux-efi@...r.kernel.org, linux-kernel@...r.kernel.org,
	"H. Peter Anvin" <hpa@...or.com>, Olof Johansson <olof@...om.net>,
	Tony Luck <tony.luck@...el.com>,
	Matt Fleming <matt.fleming@...el.com>
Subject: [RFC PATCH 0/2] EFI facilities bitfield

From: Matt Fleming <matt.fleming@...el.com>

Various users expect different semantics from 'efi_enabled', and one
variable can't be all things to all users. Introduce an EFI facilities
bitfield, which informs users what EFI initialisation steps were
completed successfully (are the system/config tables mapped, can we
invoke runtime services, etc?) and allows users to clearly document
which pieces of EFI firmware functionality they're using.

The immediate motivation for this patch series is the bug report at,

    https://bugzilla.kernel.org/show_bug.cgi?id=47121

Drivers need a new means of detecting whether they're running on an
EFI machine, as sadly the expression,

    if (!efi_enabled)

hasn't been a sufficient condition for quite some time.

This series has only seen minimal runtime testing since it's an RFC
and is intended to start a discussion.

Matt Fleming (2):
  efi: Make 'efi_enabled' a function to query EFI facilities
  samsung-laptop: Disable on EFI hardware

 arch/x86/include/asm/efi.h             |  1 +
 arch/x86/kernel/reboot.c               |  2 +-
 arch/x86/kernel/setup.c                | 28 ++++++++---------
 arch/x86/platform/efi/efi.c            | 55 ++++++++++++++++++++--------------
 drivers/acpi/osl.c                     |  2 +-
 drivers/firmware/dmi_scan.c            |  2 +-
 drivers/firmware/efivars.c             |  4 +--
 drivers/firmware/iscsi_ibft_find.c     |  2 +-
 drivers/gpu/drm/radeon/radeon_device.c |  3 +-
 drivers/platform/x86/ibm_rtl.c         |  2 +-
 drivers/platform/x86/samsung-laptop.c  |  3 ++
 drivers/scsi/isci/init.c               |  2 +-
 include/linux/efi.h                    | 24 +++++++++++----
 init/main.c                            |  4 +--
 14 files changed, 80 insertions(+), 54 deletions(-)

-- 
1.7.11.7

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ