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fb834c7acc
linux/arch/x86/platform
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Matt Fleming fb834c7acc x86, efi: Make "noefi" really disable EFI runtime serivces 
commit 1de63d60cd ("efi: Clear EFI_RUNTIME_SERVICES rather than
EFI_BOOT by "noefi" boot parameter") attempted to make "noefi" true to
its documentation and disable EFI runtime services to prevent the
bricking bug described in commit e0094244e4 ("samsung-laptop:
Disable on EFI hardware"). However, it's not possible to clear
EFI_RUNTIME_SERVICES from an early param function because
EFI_RUNTIME_SERVICES is set in efi_init() *after* parse_early_param().

This resulted in "noefi" effectively becoming a no-op and no longer
providing users with a way to disable EFI, which is bad for those
users that have buggy machines.

Reported-by: Walt Nelson Jr <walt0924@gmail.com>
Cc: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Link: http://lkml.kernel.org/r/1361392572-25657-1-git-send-email-matt@console-pimps.org
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2013-02-20 13:18:36 -08:00
..
ce4100 TTY/Serial merge for 3.8-rc1 2012-12-11 14:08:47 -08:00
efi x86, efi: Make "noefi" really disable EFI runtime serivces 2013-02-20 13:18:36 -08:00
geode arch/x86/platform/geode/net5501.c: change active_low to 0 for LED driver 2012-05-04 14:40:07 -07:00
goldfish goldfish: platform device for x86 2013-01-21 12:09:19 -08:00
iris arch/x86/platform/iris/iris.c: register a platform device and a platform driver 2012-12-18 15:02:11 -08:00
mrst X86: drivers: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
olpc X86: drivers: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
scx200 X86: drivers: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
sfi x86: Convert a few mistaken __cpuinit annotations to __init 2013-01-24 17:12:19 +01:00
ts5500 x86: Add TS-5500 platform support 2013-01-25 19:40:23 +01:00
uv Merge branch 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-02-19 20:12:57 -08:00
visws x86/apic: Fix typo EIO_ACK -> EOI_ACK and document it 2012-05-18 09:46:07 +02:00
Makefile x86: Add TS-5500 platform support 2013-01-25 19:40:23 +01:00