Messages in this thread | | | From | Matt Fleming <> | Subject | [PATCH 0/2] EFI facilities | Date | Mon, 21 Jan 2013 20:40:36 +0000 |
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From: Matt Fleming <matt.fleming@intel.com>
Various users expect different semantics from 'efi_enabled', and one variable can't be all things to all users. Introduce EFI facilities, 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.
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 | 56 ++++++++++++++++++++-------------- 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, 81 insertions(+), 54 deletions(-)
-- 1.7.11.7
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