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(parent: 19558c5) | patch
x86, smap: Add a header file with macros for STAC/CLAC
authorH. Peter Anvin <hpa@linux.intel.com>
Fri, 21 Sep 2012 19:43:10 +0000 (12:43 -0700)
committerH. Peter Anvin <hpa@linux.intel.com>
Fri, 21 Sep 2012 19:45:26 +0000 (12:45 -0700)
commit0a49d34a151c8dfb42b1e32b15353904d1822708
treec79d01f5aea44c5f969a8aa4618cb92c69be3977tree | snapshot
parent19558c5650fe611239b949bc9b8fc080bd333a33commit | diff
x86, smap: Add a header file with macros for STAC/CLAC

The STAC/CLAC instructions are only available with SMAP, but on the
other hand they aren't needed if SMAP is not available, or before we
start to run userspace, so construct them as alternatives which start
out as noops and are enabled by the alternatives mechanism.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/r/1348256595-29119-7-git-send-email-hpa@linux.intel.com
arch/x86/Kconfig diff | blob | history
arch/x86/include/asm/smap.h [new file with mode: 0644] blob
Linux Kernel Source Tree.