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(parent: d6d211d) | patch
x86, rdrand: When nordrand is specified, disable RDSEED as well
authorH. Peter Anvin <hpa@linux.intel.com>
Mon, 12 May 2014 03:25:20 +0000 (20:25 -0700)
committerH. Peter Anvin <hpa@linux.intel.com>
Mon, 12 May 2014 03:25:20 +0000 (20:25 -0700)
commit7a5091d58419b4e5222abce58a40c072786ea1d6
tree5539029ddca915b6c5d1e4e688e2943393c3f811tree | snapshot (tar.gz zip)
parentd6d211db37e75de2ddc3a4f979038c40df7cc79ccommit | diff
x86, rdrand: When nordrand is specified, disable RDSEED as well

One can logically expect that when the user has specified "nordrand",
the user doesn't want any use of the CPU random number generator,
neither RDRAND nor RDSEED, so disable both.

Reported-by: Stephan Mueller <smueller@chronox.de>
Cc: Theodore Ts'o <tytso@mit.edu>
Link: http://lkml.kernel.org/r/21542339.0lFnPSyGRS@myon.chronox.de
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Documentation/kernel-parameters.txt diff | blob | blame | history
arch/x86/kernel/cpu/rdrand.c diff | blob | blame | history