x86, smap: Turn on Supervisor Mode Access Prevention

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If Supervisor Mode Access Prevention is available and not disabled by
the user, turn it on.  Also fix the expansion of SMEP (Supervisor Mode
Execution Prevention.)

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/r/1348256595-29119-10-git-send-email-hpa@linux.intel.com

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H. Peter Anvin 2012-09-21 12:43:13 -07:00

parent 63bcff2a30

commit 52b6179ac8

2 changed files with 31 additions and 1 deletions

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6

Documentation/kernel-parameters.txt

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26

arch/x86/kernel/cpu/common.c

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